Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

45 files changed, 12507 insertions, 0 deletions

diff --git a/accessible/tests/browser/mac/browser.toml b/accessible/tests/browser/mac/browser.toml
new file mode 100644
index 0000000000..b180a42ab7
--- /dev/null
+++ b/accessible/tests/browser/mac/browser.toml
@@ -0,0 +1,95 @@
+[DEFAULT]
+subsuite = "a11y"
+skip-if = ["os != 'mac'"]
+support-files = [
+  "head.js",
+  "doc_aria_tabs.html",
+  "doc_textmarker_test.html",
+  "doc_rich_listbox.xhtml",
+  "doc_menulist.xhtml",
+  "doc_tree.xhtml",
+  "!/accessible/tests/browser/shared-head.js",
+  "!/accessible/tests/browser/*.jsm",
+  "!/accessible/tests/mochitest/*.js",
+  "!/accessible/tests/mochitest/letters.gif",
+  "!/accessible/tests/mochitest/moz.png",
+]
+prefs = ["javascript.options.asyncstack_capture_debuggee_only=false"]
+
+["browser_app.js"]
+https_first_disabled = true
+
+["browser_aria_busy.js"]
+
+["browser_aria_controls_flowto.js"]
+
+["browser_aria_current.js"]
+
+["browser_aria_expanded.js"]
+
+["browser_aria_haspopup.js"]
+
+["browser_aria_setsize.js"]
+
+["browser_attributed_text.js"]
+
+["browser_bounds.js"]
+
+["browser_details_summary.js"]
+
+["browser_focus.js"]
+
+["browser_heading.js"]
+
+["browser_hierarchy.js"]
+
+["browser_input.js"]
+
+["browser_label_title.js"]
+
+["browser_link.js"]
+
+["browser_live_regions.js"]
+
+["browser_mathml.js"]
+
+["browser_menulist.js"]
+
+["browser_navigate.js"]
+
+["browser_outline.js"]
+
+["browser_outline_xul.js"]
+
+["browser_popupbutton.js"]
+
+["browser_radio_position.js"]
+
+["browser_range.js"]
+
+["browser_required.js"]
+
+["browser_rich_listbox.js"]
+
+["browser_roles_elements.js"]
+
+["browser_rootgroup.js"]
+
+["browser_rotor.js"]
+
+["browser_selectables.js"]
+
+["browser_table.js"]
+
+["browser_text_basics.js"]
+
+["browser_text_input.js"]
+skip-if = ["os == 'mac'"] # Bug 1778821
+
+["browser_text_leaf.js"]
+
+["browser_text_selection.js"]
+
+["browser_toggle_radio_check.js"]
+
+["browser_webarea.js"]
diff --git a/accessible/tests/browser/mac/browser_app.js b/accessible/tests/browser/mac/browser_app.js
new file mode 100644
index 0000000000..bedefae440
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_app.js
@@ -0,0 +1,355 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const { UrlbarTestUtils } = ChromeUtils.importESModule(
+  "resource://testing-common/UrlbarTestUtils.sys.mjs"
+);
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+function getMacAccessible(accOrElmOrID) {
+  return new Promise(resolve => {
+    let intervalId = setInterval(() => {
+      let acc = getAccessible(accOrElmOrID);
+      if (acc) {
+        clearInterval(intervalId);
+        resolve(
+          acc.nativeInterface.QueryInterface(Ci.nsIAccessibleMacInterface)
+        );
+      }
+    }, 10);
+  });
+}
+
+/**
+ * Test a11yUtils announcements are exposed to VO
+ */
+add_task(async () => {
+  const tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "data:text/html,"
+  );
+  const alert = document.getElementById("a11y-announcement");
+  ok(alert, "Found alert to send announcements");
+
+  const alerted = waitForMacEvent("AXAnnouncementRequested", (iface, data) => {
+    return data.AXAnnouncementKey == "hello world";
+  });
+
+  A11yUtils.announce({
+    raw: "hello world",
+  });
+  await alerted;
+  await BrowserTestUtils.removeTab(tab);
+});
+
+/**
+ * Test browser tabs
+ */
+add_task(async () => {
+  let newTabs = await Promise.all([
+    BrowserTestUtils.openNewForegroundTab(
+      gBrowser,
+      "data:text/html,<title>Two</title>"
+    ),
+    BrowserTestUtils.openNewForegroundTab(
+      gBrowser,
+      "data:text/html,<title>Three</title>"
+    ),
+    BrowserTestUtils.openNewForegroundTab(
+      gBrowser,
+      "data:text/html,<title>Four</title>"
+    ),
+  ]);
+
+  // Mochitests spawn with a tab, and we've opened 3 more for a total of 4 tabs
+  is(gBrowser.tabs.length, 4, "We now have 4 open tabs");
+
+  let tablist = await getMacAccessible("tabbrowser-tabs");
+  is(
+    tablist.getAttributeValue("AXRole"),
+    "AXTabGroup",
+    "Correct role for tablist"
+  );
+
+  let tabMacAccs = tablist.getAttributeValue("AXTabs");
+  is(tabMacAccs.length, 4, "4 items in AXTabs");
+
+  let selectedTabs = tablist.getAttributeValue("AXSelectedChildren");
+  is(selectedTabs.length, 1, "one selected tab");
+
+  let tab = selectedTabs[0];
+  is(tab.getAttributeValue("AXRole"), "AXRadioButton", "Correct role for tab");
+  is(
+    tab.getAttributeValue("AXSubrole"),
+    "AXTabButton",
+    "Correct subrole for tab"
+  );
+  is(tab.getAttributeValue("AXTitle"), "Four", "Correct title for tab");
+
+  let tabToSelect = tabMacAccs[2];
+  is(
+    tabToSelect.getAttributeValue("AXTitle"),
+    "Three",
+    "Correct title for tab"
+  );
+
+  let actions = tabToSelect.actionNames;
+  ok(true, actions);
+  ok(actions.includes("AXPress"), "Has switch action");
+
+  // When tab is clicked selection of tab group changes,
+  // and focus goes to the web area. Wait for both.
+  let evt = Promise.all([
+    waitForMacEvent("AXSelectedChildrenChanged"),
+    waitForMacEvent(
+      "AXFocusedUIElementChanged",
+      iface => iface.getAttributeValue("AXRole") == "AXWebArea"
+    ),
+  ]);
+  tabToSelect.performAction("AXPress");
+  await evt;
+
+  selectedTabs = tablist.getAttributeValue("AXSelectedChildren");
+  is(selectedTabs.length, 1, "one selected tab");
+  is(
+    selectedTabs[0].getAttributeValue("AXTitle"),
+    "Three",
+    "Correct title for tab"
+  );
+
+  // Close all open tabs
+  await Promise.all(newTabs.map(t => BrowserTestUtils.removeTab(t)));
+});
+
+/**
+ * Test ignored invisible items in root
+ */
+add_task(async () => {
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: "about:license",
+    },
+    async browser => {
+      let root = await getMacAccessible(document);
+      let rootChildCount = () => root.getAttributeValue("AXChildren").length;
+
+      // With no popups, the root accessible has 5 visible children:
+      // 1. Tab bar (#TabsToolbar)
+      // 2. Navigation bar (#nav-bar)
+      // 3. Content area (#tabbrowser-tabpanels)
+      // 4. Some fullscreen pointer grabber (#fullscreen-and-pointerlock-wrapper)
+      // 5. Accessibility announcements dialog (#a11y-announcement)
+      let baseRootChildCount = 5;
+      is(
+        rootChildCount(),
+        baseRootChildCount,
+        "Root with no popups has 5 children"
+      );
+
+      // Open a context menu
+      const menu = document.getElementById("contentAreaContextMenu");
+      if (
+        Services.prefs.getBoolPref("widget.macos.native-context-menus", false)
+      ) {
+        // Native context menu - do not expect accessibility notifications.
+        let popupshown = BrowserTestUtils.waitForPopupEvent(menu, "shown");
+        EventUtils.synthesizeMouseAtCenter(document.body, {
+          type: "contextmenu",
+        });
+        await popupshown;
+
+        is(
+          rootChildCount(),
+          baseRootChildCount,
+          "Native context menus do not show up in the root children"
+        );
+
+        // Close context menu
+        let popuphidden = BrowserTestUtils.waitForPopupEvent(menu, "hidden");
+        menu.hidePopup();
+        await popuphidden;
+      } else {
+        // Non-native menu
+        EventUtils.synthesizeMouseAtCenter(document.body, {
+          type: "contextmenu",
+        });
+        await waitForMacEvent("AXMenuOpened");
+
+        // Now root has 1 more child
+        is(rootChildCount(), baseRootChildCount + 1, "Root has 1 more child");
+
+        // Close context menu
+        let closed = waitForMacEvent("AXMenuClosed", "contentAreaContextMenu");
+        EventUtils.synthesizeKey("KEY_Escape");
+        await BrowserTestUtils.waitForPopupEvent(menu, "hidden");
+        await closed;
+      }
+
+      // We're back to base child count
+      is(rootChildCount(), baseRootChildCount, "Root has original child count");
+
+      // Open site identity popup
+      document.getElementById("identity-icon-box").click();
+      const identityPopup = document.getElementById("identity-popup");
+      await BrowserTestUtils.waitForPopupEvent(identityPopup, "shown");
+
+      // Now root has another child
+      is(rootChildCount(), baseRootChildCount + 1, "Root has another child");
+
+      // Close popup
+      EventUtils.synthesizeKey("KEY_Escape");
+      await BrowserTestUtils.waitForPopupEvent(identityPopup, "hidden");
+
+      // We're back to the base child count
+      is(rootChildCount(), baseRootChildCount, "Root has the base child count");
+    }
+  );
+});
+
+/**
+ * Tests for location bar
+ */
+add_task(async () => {
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+      url: "http://example.com",
+    },
+    async browser => {
+      let input = await getMacAccessible("urlbar-input");
+      is(
+        input.getAttributeValue("AXValue"),
+        // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+        UrlbarTestUtils.trimURL("http://example.com"),
+        "Location bar has correct value"
+      );
+    }
+  );
+});
+
+/**
+ * Test context menu
+ */
+add_task(async () => {
+  if (Services.prefs.getBoolPref("widget.macos.native-context-menus", false)) {
+    ok(true, "We cannot inspect native context menu contents; skip this test.");
+    return;
+  }
+
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: 'data:text/html,<a id="exampleLink" href="https://example.com">link</a>',
+    },
+    async browser => {
+      if (!Services.search.isInitialized) {
+        let aStatus = await Services.search.init();
+        Assert.ok(Components.isSuccessCode(aStatus));
+        Assert.ok(Services.search.isInitialized);
+      }
+
+      const hasContainers =
+        Services.prefs.getBoolPref("privacy.userContext.enabled") &&
+        !!ContextualIdentityService.getPublicIdentities().length;
+      info(`${hasContainers ? "Do" : "Don't"} expect containers item.`);
+      const hasInspectA11y =
+        Services.prefs.getBoolPref("devtools.everOpened", false) ||
+        Services.prefs.getIntPref("devtools.selfxss.count", 0) > 0;
+      info(`${hasInspectA11y ? "Do" : "Don't"} expect inspect a11y item.`);
+
+      // synthesize a right click on the link to open the link context menu
+      let menu = document.getElementById("contentAreaContextMenu");
+      await BrowserTestUtils.synthesizeMouseAtCenter(
+        "#exampleLink",
+        { type: "contextmenu" },
+        browser
+      );
+      await waitForMacEvent("AXMenuOpened");
+
+      menu = await getMacAccessible(menu);
+      let menuChildren = menu.getAttributeValue("AXChildren");
+      const expectedChildCount = 12 + +hasContainers + +hasInspectA11y;
+      is(
+        menuChildren.length,
+        expectedChildCount,
+        `Context menu on link contains ${expectedChildCount} items.`
+      );
+      // items at indicies 3, 9, and 11 are the splitters when containers exist
+      // everything else should be a menu item, otherwise indicies of splitters are
+      // 3, 8, and 10
+      const splitterIndicies = hasContainers ? [4, 9, 11] : [3, 8, 10];
+      for (let i = 0; i < menuChildren.length; i++) {
+        if (splitterIndicies.includes(i)) {
+          is(
+            menuChildren[i].getAttributeValue("AXRole"),
+            "AXSplitter",
+            "found splitter in menu"
+          );
+        } else {
+          is(
+            menuChildren[i].getAttributeValue("AXRole"),
+            "AXMenuItem",
+            "found menu item in menu"
+          );
+        }
+      }
+
+      // check the containers sub menu in depth if it exists
+      if (hasContainers) {
+        is(
+          menuChildren[1].getAttributeValue("AXVisibleChildren"),
+          null,
+          "Submenu 1 has no visible chldren when hidden"
+        );
+
+        // focus the first submenu
+        EventUtils.synthesizeKey("KEY_ArrowDown");
+        EventUtils.synthesizeKey("KEY_ArrowDown");
+        EventUtils.synthesizeKey("KEY_ArrowRight");
+        await waitForMacEvent("AXMenuOpened");
+
+        // after the submenu is opened, refetch it
+        menu = document.getElementById("contentAreaContextMenu");
+        menu = await getMacAccessible(menu);
+        menuChildren = menu.getAttributeValue("AXChildren");
+
+        // verify submenu-menuitem's attributes
+        is(
+          menuChildren[1].getAttributeValue("AXChildren").length,
+          1,
+          "Submenu 1 has one child when open"
+        );
+        const subMenu = menuChildren[1].getAttributeValue("AXChildren")[0];
+        is(
+          subMenu.getAttributeValue("AXRole"),
+          "AXMenu",
+          "submenu has role of menu"
+        );
+        const subMenuChildren = subMenu.getAttributeValue("AXChildren");
+        is(subMenuChildren.length, 4, "sub menu has 4 children");
+        is(
+          subMenu.getAttributeValue("AXVisibleChildren").length,
+          4,
+          "submenu has 4 visible children"
+        );
+
+        // close context menu
+        EventUtils.synthesizeKey("KEY_Escape");
+        await waitForMacEvent("AXMenuClosed");
+      }
+
+      EventUtils.synthesizeKey("KEY_Escape");
+      await waitForMacEvent("AXMenuClosed");
+    }
+  );
+});
diff --git a/accessible/tests/browser/mac/browser_aria_busy.js b/accessible/tests/browser/mac/browser_aria_busy.js
new file mode 100644
index 0000000000..e75d334e29
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_aria_busy.js
@@ -0,0 +1,44 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test aria-busy
+ */
+addAccessibleTask(
+  `<div id="section" role="group">Hello</div>`,
+  async (browser, accDoc) => {
+    let section = getNativeInterface(accDoc, "section");
+
+    ok(!section.getAttributeValue("AXElementBusy"), "section is not busy");
+
+    let busyChanged = waitForMacEvent("AXElementBusyChanged", "section");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("section")
+        .setAttribute("aria-busy", "true");
+    });
+    await busyChanged;
+
+    ok(section.getAttributeValue("AXElementBusy"), "section is busy");
+
+    busyChanged = waitForMacEvent("AXElementBusyChanged", "section");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("section")
+        .setAttribute("aria-busy", "false");
+    });
+    await busyChanged;
+
+    ok(!section.getAttributeValue("AXElementBusy"), "section is not busy");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_aria_controls_flowto.js b/accessible/tests/browser/mac/browser_aria_controls_flowto.js
new file mode 100644
index 0000000000..5950a60399
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_aria_controls_flowto.js
@@ -0,0 +1,92 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test aria-controls
+ */
+addAccessibleTask(
+  `<button aria-controls="info" id="info-button">Show info</button>
+   <div id="info">Information.</div>
+   <div id="more-info">More information.</div>`,
+  async (browser, accDoc) => {
+    const getAriaControls = id =>
+      JSON.stringify(
+        getNativeInterface(accDoc, id)
+          .getAttributeValue("AXARIAControls")
+          .map(e => e.getAttributeValue("AXDOMIdentifier"))
+      );
+
+    await untilCacheIs(
+      () => getAriaControls("info-button"),
+      JSON.stringify(["info"]),
+      "Info-button has correct initial controls"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("info-button")
+        .setAttribute("aria-controls", "info more-info");
+    });
+
+    await untilCacheIs(
+      () => getAriaControls("info-button"),
+      JSON.stringify(["info", "more-info"]),
+      "Info-button has correct controls after mutation"
+    );
+  }
+);
+
+function getLinkedUIElements(accDoc, id) {
+  return JSON.stringify(
+    getNativeInterface(accDoc, id)
+      .getAttributeValue("AXLinkedUIElements")
+      .map(e => e.getAttributeValue("AXDOMIdentifier"))
+  );
+}
+
+/**
+ * Test aria-flowto
+ */
+addAccessibleTask(
+  `<button aria-flowto="info" id="info-button">Show info</button>
+   <div id="info">Information.</div>
+   <div id="more-info">More information.</div>`,
+  async (browser, accDoc) => {
+    await untilCacheIs(
+      () => getLinkedUIElements(accDoc, "info-button"),
+      JSON.stringify(["info"]),
+      "Info-button has correct initial linked elements"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("info-button")
+        .setAttribute("aria-flowto", "info more-info");
+    });
+
+    await untilCacheIs(
+      () => getLinkedUIElements(accDoc, "info-button"),
+      JSON.stringify(["info", "more-info"]),
+      "Info-button has correct linked elements after mutation"
+    );
+  }
+);
+
+/**
+ * Test aria-controls
+ */
+addAccessibleTask(
+  `<input type="radio" id="cat-radio" name="animal"><label for="cat">Cat</label>
+   <input type="radio" id="dog-radio" name="animal" aria-flowto="info"><label for="dog">Dog</label>
+   <div id="info">Information.</div>`,
+  async (browser, accDoc) => {
+    await untilCacheIs(
+      () => getLinkedUIElements(accDoc, "dog-radio"),
+      JSON.stringify(["cat-radio", "dog-radio", "info"]),
+      "dog-radio has correct linked elements"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_aria_current.js b/accessible/tests/browser/mac/browser_aria_current.js
new file mode 100644
index 0000000000..02c7a71b67
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_aria_current.js
@@ -0,0 +1,58 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test aria-current
+ */
+addAccessibleTask(
+  `<a id="one" href="%23" aria-current="page">One</a><a id="two" href="%23">Two</a>`,
+  async (browser, accDoc) => {
+    let one = getNativeInterface(accDoc, "one");
+    let two = getNativeInterface(accDoc, "two");
+
+    is(
+      one.getAttributeValue("AXARIACurrent"),
+      "page",
+      "Correct aria-current for #one"
+    );
+    is(
+      two.getAttributeValue("AXARIACurrent"),
+      null,
+      "Correct aria-current for #two"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("one")
+        .setAttribute("aria-current", "step");
+    });
+
+    is(
+      one.getAttributeValue("AXARIACurrent"),
+      "step",
+      "Correct aria-current for #one"
+    );
+
+    let stateChanged = waitForEvent(EVENT_STATE_CHANGE, "one");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("one").removeAttribute("aria-current");
+    });
+    await stateChanged;
+
+    is(
+      one.getAttributeValue("AXARIACurrent"),
+      null,
+      "Correct aria-current for #one"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_aria_expanded.js b/accessible/tests/browser/mac/browser_aria_expanded.js
new file mode 100644
index 0000000000..48fb615266
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_aria_expanded.js
@@ -0,0 +1,45 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/states.js */
+loadScripts({ name: "states.js", dir: MOCHITESTS_DIR });
+
+// Test aria-expanded on a button
+addAccessibleTask(
+  `hello world<br>
+  <button aria-expanded="false" id="b">I am a button</button><br>
+  goodbye`,
+  async (browser, accDoc) => {
+    let button = getNativeInterface(accDoc, "b");
+    is(button.getAttributeValue("AXExpanded"), 0, "button is not expanded");
+
+    let stateChanged = Promise.all([
+      waitForStateChange("b", STATE_EXPANDED, true),
+      waitForStateChange("b", STATE_COLLAPSED, false),
+    ]);
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("b")
+        .setAttribute("aria-expanded", "true");
+    });
+    await stateChanged;
+    is(button.getAttributeValue("AXExpanded"), 1, "button is expanded");
+
+    stateChanged = Promise.all([
+      waitForStateChange("b", STATE_EXPANDED, false),
+      waitForStateChange("b", EXT_STATE_EXPANDABLE, false, true),
+    ]);
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("b").removeAttribute("aria-expanded");
+    });
+    await stateChanged;
+
+    ok(
+      !button.attributeNames.includes("AXExpanded"),
+      "button has no expanded attr"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_aria_haspopup.js b/accessible/tests/browser/mac/browser_aria_haspopup.js
new file mode 100644
index 0000000000..57f1e50f65
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_aria_haspopup.js
@@ -0,0 +1,320 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test aria-haspopup
+ */
+addAccessibleTask(
+  `
+  <button aria-haspopup="false" id="false">action</button>
+
+  <button aria-haspopup="menu" id="menu">action</button>
+
+  <button aria-haspopup="listbox" id="listbox">action</button>
+
+  <button aria-haspopup="tree" id="tree">action</button>
+
+  <button aria-haspopup="grid" id="grid">action</button>
+
+  <button aria-haspopup="dialog" id="dialog">action</button>
+
+  `,
+  async (browser, accDoc) => {
+    // FALSE
+    let falseID = getNativeInterface(accDoc, "false");
+    is(
+      falseID.getAttributeValue("AXHasPopup"),
+      0,
+      "Correct AXHasPopup val for button with false"
+    );
+    is(
+      falseID.getAttributeValue("AXPopupValue"),
+      null,
+      "Correct AXPopupValue val for button with false"
+    );
+    let attrChanged = waitForEvent(EVENT_STATE_CHANGE, "false");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("false")
+        .setAttribute("aria-haspopup", "true");
+    });
+    await attrChanged;
+
+    is(
+      falseID.getAttributeValue("AXPopupValue"),
+      "true",
+      "Correct AXPopupValue after change for false"
+    );
+    is(
+      falseID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup val for button with true"
+    );
+
+    let stateChanged = waitForEvent(EVENT_STATE_CHANGE, "false");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("false").removeAttribute("aria-haspopup");
+    });
+    await stateChanged;
+
+    is(
+      falseID.getAttributeValue("AXPopupValue"),
+      null,
+      "Correct AXPopupValue after remove for false"
+    );
+    is(
+      falseID.getAttributeValue("AXHasPopup"),
+      0,
+      "Correct AXHasPopup val for button after remove"
+    );
+
+    // MENU
+    let menuID = getNativeInterface(accDoc, "menu");
+    is(
+      menuID.getAttributeValue("AXPopupValue"),
+      "menu",
+      "Correct AXPopupValue val for button with menu"
+    );
+    is(
+      menuID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup val for button with menu"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("menu")
+        .setAttribute("aria-haspopup", "true");
+    });
+
+    await untilCacheIs(
+      () => menuID.getAttributeValue("AXPopupValue"),
+      "true",
+      "Correct AXPopupValue after change for menu"
+    );
+    is(
+      menuID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup val for button with menu"
+    );
+
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "menu");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("menu").removeAttribute("aria-haspopup");
+    });
+    await stateChanged;
+
+    await untilCacheIs(
+      () => menuID.getAttributeValue("AXPopupValue"),
+      null,
+      "Correct AXPopupValue after remove for menu"
+    );
+    is(
+      menuID.getAttributeValue("AXHasPopup"),
+      0,
+      "Correct AXHasPopup val for button after remove"
+    );
+
+    // LISTBOX
+    let listboxID = getNativeInterface(accDoc, "listbox");
+    is(
+      listboxID.getAttributeValue("AXPopupValue"),
+      "listbox",
+      "Correct AXPopupValue for button with listbox"
+    );
+    is(
+      listboxID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with listbox"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("listbox")
+        .setAttribute("aria-haspopup", "true");
+    });
+
+    await untilCacheIs(
+      () => listboxID.getAttributeValue("AXPopupValue"),
+      "true",
+      "Correct AXPopupValue after change for listbox"
+    );
+    is(
+      listboxID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with listbox"
+    );
+
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "listbox");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("listbox")
+        .removeAttribute("aria-haspopup");
+    });
+    await stateChanged;
+
+    is(
+      listboxID.getAttributeValue("AXPopupValue"),
+      null,
+      "Correct AXPopupValue after remove for listbox"
+    );
+    is(
+      listboxID.getAttributeValue("AXHasPopup"),
+      0,
+      "Correct AXHasPopup for button with listbox"
+    );
+
+    // TREE
+    let treeID = getNativeInterface(accDoc, "tree");
+    is(
+      treeID.getAttributeValue("AXPopupValue"),
+      "tree",
+      "Correct AXPopupValue for button with tree"
+    );
+    is(
+      treeID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with tree"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("tree")
+        .setAttribute("aria-haspopup", "true");
+    });
+
+    await untilCacheIs(
+      () => treeID.getAttributeValue("AXPopupValue"),
+      "true",
+      "Correct AXPopupValue after change for tree"
+    );
+    is(
+      treeID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with tree"
+    );
+
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "tree");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("tree").removeAttribute("aria-haspopup");
+    });
+    await stateChanged;
+
+    is(
+      treeID.getAttributeValue("AXPopupValue"),
+      null,
+      "Correct AXPopupValue after remove for tree"
+    );
+    is(
+      treeID.getAttributeValue("AXHasPopup"),
+      0,
+      "Correct AXHasPopup for button with tree after remove"
+    );
+
+    // GRID
+    let gridID = getNativeInterface(accDoc, "grid");
+    is(
+      gridID.getAttributeValue("AXPopupValue"),
+      "grid",
+      "Correct AXPopupValue for button with grid"
+    );
+    is(
+      gridID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with grid"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("grid")
+        .setAttribute("aria-haspopup", "true");
+    });
+
+    await untilCacheIs(
+      () => gridID.getAttributeValue("AXPopupValue"),
+      "true",
+      "Correct AXPopupValue after change for grid"
+    );
+    is(
+      gridID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with grid"
+    );
+
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "grid");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("grid").removeAttribute("aria-haspopup");
+    });
+    await stateChanged;
+
+    is(
+      gridID.getAttributeValue("AXPopupValue"),
+      null,
+      "Correct AXPopupValue after remove for grid"
+    );
+    is(
+      gridID.getAttributeValue("AXHasPopup"),
+      0,
+      "Correct AXHasPopup for button with grid after remove"
+    );
+
+    // DIALOG
+    let dialogID = getNativeInterface(accDoc, "dialog");
+    is(
+      dialogID.getAttributeValue("AXPopupValue"),
+      "dialog",
+      "Correct AXPopupValue for button with dialog"
+    );
+    is(
+      dialogID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with dialog"
+    );
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("dialog")
+        .setAttribute("aria-haspopup", "true");
+    });
+
+    await untilCacheIs(
+      () => dialogID.getAttributeValue("AXPopupValue"),
+      "true",
+      "Correct AXPopupValue after change for dialog"
+    );
+    is(
+      dialogID.getAttributeValue("AXHasPopup"),
+      1,
+      "Correct AXHasPopup for button with dialog"
+    );
+
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "dialog");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("dialog")
+        .removeAttribute("aria-haspopup");
+    });
+    await stateChanged;
+
+    is(
+      dialogID.getAttributeValue("AXPopupValue"),
+      null,
+      "Correct AXPopupValue after remove for dialog"
+    );
+    is(
+      dialogID.getAttributeValue("AXHasPopup"),
+      0,
+      "Correct AXHasPopup for button with dialog after remove"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_aria_setsize.js b/accessible/tests/browser/mac/browser_aria_setsize.js
new file mode 100644
index 0000000000..e37afb4e63
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_aria_setsize.js
@@ -0,0 +1,47 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test aria-setsize and aria-posinset
+ */
+addAccessibleTask(
+  `<div role="listbox" id="select" aria-label="Choose a number">
+     <div role="option" id="two" aria-setsize="5" aria-posinset="2">Two</div>
+     <div role="option" id="three" aria-setsize="5" aria-posinset="3">Three</div>
+     <div role="option" id="four" aria-setsize="5" aria-posinset="4">Four</div>
+   </div>
+   <p id="p">Hello</p>`,
+  async (browser, accDoc) => {
+    function testPosInSet(id, setsize, posinset) {
+      let elem = getNativeInterface(accDoc, id);
+      is(
+        elem.getAttributeValue("AXARIASetSize"),
+        setsize,
+        `${id}: Correct set size`
+      );
+
+      is(
+        elem.getAttributeValue("AXARIAPosInSet"),
+        posinset,
+        `${id}: Correct position in set`
+      );
+    }
+
+    testPosInSet("two", 5, 2);
+    testPosInSet("three", 5, 3);
+    testPosInSet("four", 5, 4);
+
+    let p = getNativeInterface(accDoc, "p");
+    ok(
+      !p.attributeNames.includes("AXARIASetSize"),
+      "Paragraph should not have AXARIASetSize"
+    );
+    ok(
+      !p.attributeNames.includes("AXARIAPosInSet"),
+      "Paragraph should not have AXARIAPosInSet"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_attributed_text.js b/accessible/tests/browser/mac/browser_attributed_text.js
new file mode 100644
index 0000000000..afd4d2c4dc
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_attributed_text.js
@@ -0,0 +1,165 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// Test read-only attributed strings
+addAccessibleTask(
+  `<h1>hello <a href="#" id="a1">world</a></h1>
+   <p>this <b style="color: red; background-color: yellow;" aria-invalid="spelling">is</b> <span style="text-decoration: underline dotted green;">a</span> <a href="#" id="a2">test</a></p>`,
+  async (browser, accDoc) => {
+    let macDoc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    let range = macDoc.getParameterizedAttributeValue(
+      "AXTextMarkerRangeForUnorderedTextMarkers",
+      [
+        macDoc.getAttributeValue("AXStartTextMarker"),
+        macDoc.getAttributeValue("AXEndTextMarker"),
+      ]
+    );
+
+    let attributedText = macDoc.getParameterizedAttributeValue(
+      "AXAttributedStringForTextMarkerRange",
+      range
+    );
+
+    let attributesList = attributedText.map(
+      ({
+        string,
+        AXForegroundColor,
+        AXBackgroundColor,
+        AXUnderline,
+        AXUnderlineColor,
+        AXHeadingLevel,
+        AXFont,
+        AXLink,
+        AXMarkedMisspelled,
+      }) => [
+        string,
+        AXForegroundColor,
+        AXBackgroundColor,
+        AXUnderline,
+        AXUnderlineColor,
+        AXHeadingLevel,
+        AXFont.AXFontSize,
+        AXLink ? AXLink.getAttributeValue("AXDOMIdentifier") : null,
+        AXMarkedMisspelled,
+      ]
+    );
+
+    Assert.deepEqual(attributesList, [
+      // string, fg color, bg color, underline, underline color, heading level, font size, link id, misspelled
+      ["hello ", "#000000", "#ffffff", null, null, 1, 32, null, null],
+      ["world", "#0000ee", "#ffffff", 1, "#0000ee", 1, 32, "a1", null],
+      ["this ", "#000000", "#ffffff", null, null, null, 16, null, null],
+      ["is", "#ff0000", "#ffff00", null, null, null, 16, null, 1],
+      [" ", "#000000", "#ffffff", null, null, null, 16, null, null],
+      ["a", "#000000", "#ffffff", 1, "#008000", null, 16, null, null],
+      [" ", "#000000", "#ffffff", null, null, null, 16, null, null],
+      ["test", "#0000ee", "#ffffff", 1, "#0000ee", null, 16, "a2", null],
+    ]);
+
+    // Test different NSRange parameters for AXAttributedStringForRange
+    let worldLeaf = findAccessibleChildByID(accDoc, "a1").firstChild;
+    let wordStaticText = worldLeaf.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    attributedText = wordStaticText.getParameterizedAttributeValue(
+      "AXAttributedStringForRange",
+      NSRange(4, 1)
+    );
+    is(attributedText.length, 1, "Last character is in single attribute run");
+    is(attributedText[0].string, "d", "Last character matches");
+
+    attributedText = wordStaticText.getParameterizedAttributeValue(
+      "AXAttributedStringForRange",
+      NSRange(5, 1)
+    );
+    is(attributedText.length, 0, "Range is past accessible bounds");
+  }
+);
+
+// Test misspelling in text area
+addAccessibleTask(
+  `<textarea id="t">hello worlf, i love you</textarea>`,
+  async (browser, accDoc) => {
+    let textArea = getNativeInterface(accDoc, "t");
+    let spellDone = waitForEvent(EVENT_TEXT_ATTRIBUTE_CHANGED, "t");
+    textArea.setAttributeValue("AXFocused", true);
+
+    let attributedText = [];
+
+    // For some internal reason we get several text attribute change events
+    // before the attributed text returned provides the misspelling attributes.
+    while (true) {
+      await spellDone;
+
+      let range = textArea.getAttributeValue("AXVisibleCharacterRange");
+      attributedText = textArea.getParameterizedAttributeValue(
+        "AXAttributedStringForRange",
+        NSRange(...range)
+      );
+
+      if (attributedText.length != 3) {
+        spellDone = waitForEvent(EVENT_TEXT_ATTRIBUTE_CHANGED, "t");
+      } else {
+        break;
+      }
+    }
+
+    ok(attributedText[1].AXMarkedMisspelled);
+  }
+);
+
+// Test getting a span of attributed text that includes an empty input element.
+addAccessibleTask(
+  `hello <input id="input"> world<button></button>`,
+  async (browser, accDoc) => {
+    let macDoc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    let range = macDoc.getParameterizedAttributeValue(
+      "AXTextMarkerRangeForUnorderedTextMarkers",
+      [
+        macDoc.getAttributeValue("AXStartTextMarker"),
+        macDoc.getAttributeValue("AXEndTextMarker"),
+      ]
+    );
+
+    let attributedText = macDoc.getParameterizedAttributeValue(
+      "AXAttributedStringForTextMarkerRange",
+      range
+    );
+
+    let text = macDoc.getParameterizedAttributeValue(
+      "AXStringForTextMarkerRange",
+      range
+    );
+
+    is(
+      attributedText.length,
+      4,
+      "Should be 4 attribute runs for 2 texts, input and button"
+    );
+    is(attributedText[0].string, `hello `, "Attributed string is correct");
+    ok(
+      !attributedText[0].AXAttachment,
+      "Regular string attributes run doesn't have attachment"
+    );
+    is(
+      attributedText[1].AXAttachment.getAttributeValue("AXRole"),
+      "AXTextField",
+      "Entry text attribute run has correct attachment"
+    );
+    is(
+      attributedText[3].AXAttachment.getAttributeValue("AXRole"),
+      "AXButton",
+      "Button text attribute run has correct attachment"
+    );
+    is(text, `hello  world${kEmbedChar}`, "Unattributed string is correct");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_bounds.js b/accessible/tests/browser/mac/browser_bounds.js
new file mode 100644
index 0000000000..09343d7c9d
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_bounds.js
@@ -0,0 +1,77 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test position, size for onscreen content
+ */
+addAccessibleTask(
+  `I am some extra content<br>
+   <div id="hello" style="display:inline;">hello</div><br>
+   <div id="world" style="display:inline;">hello world<br>I am some text</div>`,
+  async (browser, accDoc) => {
+    const hello = getNativeInterface(accDoc, "hello");
+    const world = getNativeInterface(accDoc, "world");
+    ok(hello.getAttributeValue("AXFrame"), "Hello's frame attr is not null");
+    ok(world.getAttributeValue("AXFrame"), "World's frame attr is not null");
+
+    // AXSize and AXPosition are composed of AXFrame components, so we
+    // test them here instead of calling AXFrame directly.
+    const [helloWidth, helloHeight] = hello.getAttributeValue("AXSize");
+    const [worldWidth, worldHeight] = world.getAttributeValue("AXSize");
+    ok(helloWidth > 0, "Hello has a positive width");
+    ok(helloHeight > 0, "Hello has a positive height");
+    ok(worldWidth > 0, "World has a positive width");
+    ok(worldHeight > 0, "World has a positive height");
+    ok(helloHeight < worldHeight, "Hello has a smaller height than world");
+    ok(helloWidth < worldWidth, "Hello has a smaller width than world");
+
+    // Note: these are mac screen coords, so our origin is bottom left
+    const [helloX, helloY] = hello.getAttributeValue("AXPosition");
+    const [worldX, worldY] = world.getAttributeValue("AXPosition");
+    ok(helloX > 0, "Hello has a positive X");
+    ok(helloY > 0, "Hello has a positive Y");
+    ok(worldX > 0, "World has a positive X");
+    ok(worldY > 0, "World has a positive Y");
+    ok(helloY > worldY, "Hello has a larger Y than world");
+    ok(helloX == worldX, "Hello and world have the same X");
+  }
+);
+
+/**
+ * Test position, size for offscreen content
+ */
+addAccessibleTask(
+  `I am some extra content<br>
+   <div id="hello" style="display:inline; position:absolute; left:-2000px;">hello</div><br>
+   <div id="world" style="display:inline; position:absolute; left:-2000px;">hello world<br>I am some text</div>`,
+  async (browser, accDoc) => {
+    const hello = getNativeInterface(accDoc, "hello");
+    const world = getNativeInterface(accDoc, "world");
+    ok(hello.getAttributeValue("AXFrame"), "Hello's frame attr is not null");
+    ok(world.getAttributeValue("AXFrame"), "World's frame attr is not null");
+
+    // AXSize and AXPosition are composed of AXFrame components, so we
+    // test them here instead of calling AXFrame directly.
+    const [helloWidth, helloHeight] = hello.getAttributeValue("AXSize");
+    const [worldWidth, worldHeight] = world.getAttributeValue("AXSize");
+    ok(helloWidth > 0, "Hello has a positive width");
+    ok(helloHeight > 0, "Hello has a positive height");
+    ok(worldWidth > 0, "World has a positive width");
+    ok(worldHeight > 0, "World has a positive height");
+    ok(helloHeight < worldHeight, "Hello has a smaller height than world");
+    ok(helloWidth < worldWidth, "Hello has a smaller width than world");
+
+    // Note: these are mac screen coords, so our origin is bottom left
+    const [helloX, helloY] = hello.getAttributeValue("AXPosition");
+    const [worldX, worldY] = world.getAttributeValue("AXPosition");
+    ok(helloX < 0, "Hello has a negative X");
+    ok(helloY > 0, "Hello has a positive Y");
+    ok(worldX < 0, "World has a negative X");
+    ok(worldY > 0, "World has a positive Y");
+    ok(helloY > worldY, "Hello has a larger Y than world");
+    ok(helloX == worldX, "Hello and world have the same X");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_details_summary.js b/accessible/tests/browser/mac/browser_details_summary.js
new file mode 100644
index 0000000000..6157707f79
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_details_summary.js
@@ -0,0 +1,69 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test details/summary
+ */
+addAccessibleTask(
+  `<details id="details"><summary id="summary">Foo</summary><p>Bar</p></details>`,
+  async (browser, accDoc) => {
+    let details = getNativeInterface(accDoc, "details");
+    is(
+      details.getAttributeValue("AXRole"),
+      "AXGroup",
+      "Correct role for details"
+    );
+    is(
+      details.getAttributeValue("AXSubrole"),
+      "AXDetails",
+      "Correct subrole for details"
+    );
+
+    let detailsChildren = details.getAttributeValue("AXChildren");
+    is(detailsChildren.length, 1, "collapsed details has only one child");
+
+    let summary = detailsChildren[0];
+    is(
+      summary.getAttributeValue("AXRole"),
+      "AXButton",
+      "Correct role for summary"
+    );
+    is(
+      summary.getAttributeValue("AXSubrole"),
+      "AXSummary",
+      "Correct subrole for summary"
+    );
+    is(summary.getAttributeValue("AXExpanded"), 0, "Summary is collapsed");
+
+    let actions = summary.actionNames;
+    ok(actions.includes("AXPress"), "Summary Has press action");
+
+    let stateChanged = waitForStateChange("summary", STATE_EXPANDED, true);
+    summary.performAction("AXPress");
+    // The reorder gecko event notifies us of a tree change.
+    await stateChanged;
+    is(summary.getAttributeValue("AXExpanded"), 1, "Summary is expanded");
+
+    detailsChildren = details.getAttributeValue("AXChildren");
+    is(detailsChildren.length, 2, "collapsed details has only one child");
+
+    stateChanged = waitForStateChange("summary", STATE_EXPANDED, false);
+    summary.performAction("AXPress");
+    // The reorder gecko event notifies us of a tree change.
+    await stateChanged;
+    is(summary.getAttributeValue("AXExpanded"), 0, "Summary is collapsed 2");
+
+    detailsChildren = details.getAttributeValue("AXChildren");
+    is(detailsChildren.length, 1, "collapsed details has only one child");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_focus.js b/accessible/tests/browser/mac/browser_focus.js
new file mode 100644
index 0000000000..6bceb06c6c
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_focus.js
@@ -0,0 +1,44 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test focusability
+ */
+addAccessibleTask(
+  `
+  <div role="button" id="ariabutton">hello</div> <button id="button">world</button>
+  `,
+  async (browser, accDoc) => {
+    let ariabutton = getNativeInterface(accDoc, "ariabutton");
+    let button = getNativeInterface(accDoc, "button");
+
+    is(
+      ariabutton.getAttributeValue("AXFocused"),
+      0,
+      "aria button is not focused"
+    );
+
+    is(button.getAttributeValue("AXFocused"), 0, "button is not focused");
+
+    ok(
+      !ariabutton.isAttributeSettable("AXFocused"),
+      "aria button should not be focusable"
+    );
+
+    ok(button.isAttributeSettable("AXFocused"), "button is focusable");
+
+    let evt = waitForMacEvent(
+      "AXFocusedUIElementChanged",
+      iface => iface.getAttributeValue("AXDOMIdentifier") == "button"
+    );
+
+    button.setAttributeValue("AXFocused", true);
+
+    await evt;
+
+    is(button.getAttributeValue("AXFocused"), 1, "button is focused");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_heading.js b/accessible/tests/browser/mac/browser_heading.js
new file mode 100644
index 0000000000..fd8c12883d
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_heading.js
@@ -0,0 +1,77 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test whether line break code in text content will be removed
+ * and extra whitespaces will be trimmed.
+ */
+addAccessibleTask(
+  `
+  <h1 id="single-line-content">We’re building a richer search experience</h1>
+  <h1 id="multi-lines-content">
+We’re building a
+richest
+search experience
+  </h1>
+  `,
+  async (browser, accDoc) => {
+    const singleLineContentHeading = getNativeInterface(
+      accDoc,
+      "single-line-content"
+    );
+    is(
+      singleLineContentHeading.getAttributeValue("AXTitle"),
+      "We’re building a richer search experience"
+    );
+
+    const multiLinesContentHeading = getNativeInterface(
+      accDoc,
+      "multi-lines-content"
+    );
+    is(
+      multiLinesContentHeading.getAttributeValue("AXTitle"),
+      "We’re building a richest search experience"
+    );
+  }
+);
+
+/**
+ * Test AXTitle/AXDescription attributes of heading elements
+ */
+addAccessibleTask(
+  `
+  <h1 id="a">Hello <a href="#">world</a></h1>
+  <h1 id="b">Hello</h1>
+  <h1 id="c" aria-label="Goodbye">Hello</h1>
+  `,
+  async (browser, accDoc) => {
+    const a = getNativeInterface(accDoc, "a");
+    is(
+      a.getAttributeValue("AXTitle"),
+      "Hello world",
+      "Correct AXTitle for 'a'"
+    );
+    ok(
+      !a.getAttributeValue("AXDescription"),
+      "'a' Should not have AXDescription"
+    );
+
+    const b = getNativeInterface(accDoc, "b");
+    is(b.getAttributeValue("AXTitle"), "Hello", "Correct AXTitle for 'b'");
+    ok(
+      !b.getAttributeValue("AXDescription"),
+      "'b' Should not have AXDescription"
+    );
+
+    const c = getNativeInterface(accDoc, "c");
+    is(
+      c.getAttributeValue("AXDescription"),
+      "Goodbye",
+      "Correct AXDescription for 'c'"
+    );
+    ok(!c.getAttributeValue("AXTitle"), "'c' Should not have AXTitle");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_hierarchy.js b/accessible/tests/browser/mac/browser_hierarchy.js
new file mode 100644
index 0000000000..8a97e55c07
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_hierarchy.js
@@ -0,0 +1,75 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test AXIndexForChildUIElement
+ */
+addAccessibleTask(
+  `<p id="p">Hello <a href="#" id="link">strange</a> world`,
+  (browser, accDoc) => {
+    let p = getNativeInterface(accDoc, "p");
+
+    let children = p.getAttributeValue("AXChildren");
+    is(children.length, 3, "p has 3 children");
+    is(
+      children[1].getAttributeValue("AXDOMIdentifier"),
+      "link",
+      "second child is link"
+    );
+
+    let index = p.getParameterizedAttributeValue(
+      "AXIndexForChildUIElement",
+      children[1]
+    );
+    is(index, 1, "link is second child");
+  }
+);
+
+/**
+ * Test textbox with more than one child
+ */
+addAccessibleTask(
+  `<div id="textbox" role="textbox">Hello <a href="#">strange</a> world</div>`,
+  (browser, accDoc) => {
+    let textbox = getNativeInterface(accDoc, "textbox");
+
+    is(
+      textbox.getAttributeValue("AXChildren").length,
+      3,
+      "textbox has 3 children"
+    );
+  }
+);
+
+/**
+ * Test textbox with one child
+ */
+addAccessibleTask(
+  `<div id="textbox" role="textbox">Hello </div>`,
+  async (browser, accDoc) => {
+    let textbox = getNativeInterface(accDoc, "textbox");
+
+    is(
+      textbox.getAttributeValue("AXChildren").length,
+      0,
+      "textbox with one child is pruned"
+    );
+
+    let reorder = waitForEvent(EVENT_REORDER, "textbox");
+    await SpecialPowers.spawn(browser, [], () => {
+      let link = content.document.createElement("a");
+      link.textContent = "World";
+      content.document.getElementById("textbox").appendChild(link);
+    });
+    await reorder;
+
+    is(
+      textbox.getAttributeValue("AXChildren").length,
+      2,
+      "textbox with two child is not pruned"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_input.js b/accessible/tests/browser/mac/browser_input.js
new file mode 100644
index 0000000000..7fa20a9d4b
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_input.js
@@ -0,0 +1,225 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+function selectedTextEventPromises(stateChangeType) {
+  return [
+    waitForMacEventWithInfo("AXSelectedTextChanged", (elem, info) => {
+      return (
+        info.AXTextStateChangeType == stateChangeType &&
+        elem.getAttributeValue("AXDOMIdentifier") == "body"
+      );
+    }),
+    waitForMacEventWithInfo("AXSelectedTextChanged", (elem, info) => {
+      return (
+        info.AXTextStateChangeType == stateChangeType &&
+        elem.getAttributeValue("AXDOMIdentifier") == "input"
+      );
+    }),
+  ];
+}
+
+async function testInput(browser, accDoc) {
+  let input = getNativeInterface(accDoc, "input");
+
+  is(input.getAttributeValue("AXDescription"), "Name", "Correct input label");
+  is(input.getAttributeValue("AXTitle"), "", "Correct input title");
+  is(input.getAttributeValue("AXValue"), "Elmer Fudd", "Correct input value");
+  is(
+    input.getAttributeValue("AXNumberOfCharacters"),
+    10,
+    "Correct length of value"
+  );
+
+  ok(input.attributeNames.includes("AXSelectedText"), "Has AXSelectedText");
+  ok(
+    input.attributeNames.includes("AXSelectedTextRange"),
+    "Has AXSelectedTextRange"
+  );
+
+  let evt = Promise.all([
+    waitForMacEvent("AXFocusedUIElementChanged", "input"),
+    ...selectedTextEventPromises(AXTextStateChangeTypeSelectionMove),
+  ]);
+  await SpecialPowers.spawn(browser, [], () => {
+    content.document.getElementById("input").focus();
+  });
+  await evt;
+
+  evt = Promise.all(
+    selectedTextEventPromises(AXTextStateChangeTypeSelectionExtend)
+  );
+  await SpecialPowers.spawn(browser, [], () => {
+    let elm = content.document.getElementById("input");
+    if (elm.setSelectionRange) {
+      elm.setSelectionRange(6, 9);
+    } else {
+      let r = new content.Range();
+      let textNode = elm.firstElementChild.firstChild;
+      r.setStart(textNode, 6);
+      r.setEnd(textNode, 9);
+
+      let s = content.getSelection();
+      s.removeAllRanges();
+      s.addRange(r);
+    }
+  });
+  await evt;
+
+  is(
+    input.getAttributeValue("AXSelectedText"),
+    "Fud",
+    "Correct text is selected"
+  );
+
+  Assert.deepEqual(
+    input.getAttributeValue("AXSelectedTextRange"),
+    [6, 3],
+    "correct range selected"
+  );
+
+  ok(
+    input.isAttributeSettable("AXSelectedTextRange"),
+    "AXSelectedTextRange is settable"
+  );
+
+  evt = Promise.all(
+    selectedTextEventPromises(AXTextStateChangeTypeSelectionExtend)
+  );
+  input.setAttributeValue("AXSelectedTextRange", NSRange(1, 7));
+  await evt;
+
+  Assert.deepEqual(
+    input.getAttributeValue("AXSelectedTextRange"),
+    [1, 7],
+    "correct range selected"
+  );
+
+  is(
+    input.getAttributeValue("AXSelectedText"),
+    "lmer Fu",
+    "Correct text is selected"
+  );
+
+  let domSelection = await SpecialPowers.spawn(browser, [], () => {
+    let elm = content.document.querySelector("input#input");
+    if (elm) {
+      return elm.value.substring(elm.selectionStart, elm.selectionEnd);
+    }
+
+    return content.getSelection().toString();
+  });
+
+  is(domSelection, "lmer Fu", "correct DOM selection");
+
+  is(
+    input.getParameterizedAttributeValue("AXStringForRange", NSRange(3, 5)),
+    "er Fu",
+    "AXStringForRange works"
+  );
+}
+
+/**
+ * Input selection test
+ */
+addAccessibleTask(
+  `<input aria-label="Name" id="input" value="Elmer Fudd">`,
+  testInput
+);
+
+/**
+ * contenteditable selection test
+ */
+addAccessibleTask(
+  `<div aria-label="Name" tabindex="0" role="textbox" aria-multiline="true" id="input" contenteditable>
+     <p>Elmer Fudd</p>
+   </div>`,
+  testInput
+);
+
+/**
+ * test contenteditable with selection that extends past editable part
+ */
+addAccessibleTask(
+  `<span aria-label="Name"
+         tabindex="0"
+         role="textbox"
+         id="input"
+         contenteditable>Elmer Fudd</span> <span id="notinput">is the name</span>`,
+  async (browser, accDoc) => {
+    let evt = Promise.all([
+      waitForMacEvent("AXFocusedUIElementChanged", "input"),
+      waitForMacEvent("AXSelectedTextChanged", "body"),
+      waitForMacEvent("AXSelectedTextChanged", "input"),
+    ]);
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("input").focus();
+    });
+    await evt;
+
+    evt = waitForEvent(EVENT_TEXT_CARET_MOVED);
+    await SpecialPowers.spawn(browser, [], () => {
+      let input = content.document.getElementById("input");
+      let notinput = content.document.getElementById("notinput");
+
+      let r = new content.Range();
+      r.setStart(input.firstChild, 4);
+      r.setEnd(notinput.firstChild, 6);
+
+      let s = content.getSelection();
+      s.removeAllRanges();
+      s.addRange(r);
+    });
+    await evt;
+
+    let input = getNativeInterface(accDoc, "input");
+
+    is(
+      input.getAttributeValue("AXSelectedText"),
+      "r Fudd",
+      "Correct text is selected in #input"
+    );
+
+    is(
+      stringForRange(
+        input,
+        input.getAttributeValue("AXSelectedTextMarkerRange")
+      ),
+      "r Fudd is the",
+      "Correct text is selected in document"
+    );
+  }
+);
+
+/**
+ * test nested content editables and their ancestor getters.
+ */
+addAccessibleTask(
+  `<div id="outer" role="textbox" contenteditable="true">
+     <p id="p">Bob <a href="#" id="link">Loblaw's</a></p>
+     <div id="inner" role="textbox" contenteditable="true">
+       Law <a href="#" id="inner_link">Blog</a>
+     </div>
+   </div>`,
+  (browser, accDoc) => {
+    let link = getNativeInterface(accDoc, "link");
+    let innerLink = getNativeInterface(accDoc, "inner_link");
+
+    let idmatches = (elem, id) => {
+      is(elem.getAttributeValue("AXDOMIdentifier"), id, "Matches ID");
+    };
+
+    idmatches(link.getAttributeValue("AXEditableAncestor"), "outer");
+    idmatches(link.getAttributeValue("AXFocusableAncestor"), "outer");
+    idmatches(link.getAttributeValue("AXHighestEditableAncestor"), "outer");
+
+    idmatches(innerLink.getAttributeValue("AXEditableAncestor"), "inner");
+    idmatches(innerLink.getAttributeValue("AXFocusableAncestor"), "inner");
+    idmatches(
+      innerLink.getAttributeValue("AXHighestEditableAncestor"),
+      "outer"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_label_title.js b/accessible/tests/browser/mac/browser_label_title.js
new file mode 100644
index 0000000000..2532247e0f
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_label_title.js
@@ -0,0 +1,111 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test different labeling/titling schemes for text fields
+ */
+addAccessibleTask(
+  `<label for="n1">Label</label> <input id="n1">
+   <label for="n2">Two</label> <label for="n2">Labels</label> <input id="n2">
+   <input aria-label="ARIA Label" id="n3">`,
+  (browser, accDoc) => {
+    let n1 = getNativeInterface(accDoc, "n1");
+    let n1Label = n1.getAttributeValue("AXTitleUIElement");
+    // XXX: In Safari the label is an AXText with an AXValue,
+    // here it is an AXGroup witth an AXTitle
+    is(n1Label.getAttributeValue("AXTitle"), "Label");
+
+    let n2 = getNativeInterface(accDoc, "n2");
+    is(n2.getAttributeValue("AXDescription"), "TwoLabels");
+
+    let n3 = getNativeInterface(accDoc, "n3");
+    is(n3.getAttributeValue("AXDescription"), "ARIA Label");
+  }
+);
+
+/**
+ * Test to see that named groups get labels
+ */
+addAccessibleTask(
+  `<fieldset id="fieldset"><legend>Fields</legend><input aria-label="hello"></fieldset>`,
+  (browser, accDoc) => {
+    let fieldset = getNativeInterface(accDoc, "fieldset");
+    is(fieldset.getAttributeValue("AXDescription"), "Fields");
+  }
+);
+
+/**
+ * Test to see that list items don't get titled groups
+ */
+addAccessibleTask(
+  `<ul style="list-style: none;"><li id="unstyled-item">Hello</li></ul>
+   <ul><li id="styled-item">World</li></ul>`,
+  (browser, accDoc) => {
+    let unstyledItem = getNativeInterface(accDoc, "unstyled-item");
+    is(unstyledItem.getAttributeValue("AXTitle"), "");
+
+    let styledItem = getNativeInterface(accDoc, "unstyled-item");
+    is(styledItem.getAttributeValue("AXTitle"), "");
+  }
+);
+
+/**
+ * Test that we fire a title changed notification
+ */
+addAccessibleTask(
+  `<div id="elem" aria-label="Hello world"></div>`,
+  async (browser, accDoc) => {
+    let elem = getNativeInterface(accDoc, "elem");
+    is(elem.getAttributeValue("AXTitle"), "Hello world");
+    let evt = waitForMacEvent("AXTitleChanged", "elem");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("elem")
+        .setAttribute("aria-label", "Hello universe");
+    });
+    await evt;
+    is(elem.getAttributeValue("AXTitle"), "Hello universe");
+  }
+);
+
+/**
+ * Test articles supply only labels not titles
+ */
+addAccessibleTask(
+  `<article id="article" aria-label="Hello world"></article>`,
+  async (browser, accDoc) => {
+    let article = getNativeInterface(accDoc, "article");
+    is(article.getAttributeValue("AXDescription"), "Hello world");
+    ok(!article.getAttributeValue("AXTitle"));
+  }
+);
+
+/**
+ * Test text and number inputs supply only labels not titles
+ */
+addAccessibleTask(
+  `<label for="input">Your favorite number?</label><input type="text" name="input" value="11" id="input" aria-label="The best number you know of">`,
+  async (browser, accDoc) => {
+    let input = getNativeInterface(accDoc, "input");
+    is(input.getAttributeValue("AXDescription"), "The best number you know of");
+    ok(!input.getAttributeValue("AXTitle"));
+    let evt = waitForEvent(EVENT_SHOW, "input");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("input").setAttribute("type", "number");
+    });
+    await evt;
+    input = getNativeInterface(accDoc, "input");
+    is(input.getAttributeValue("AXDescription"), "The best number you know of");
+    ok(!input.getAttributeValue("AXTitle"));
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_link.js b/accessible/tests/browser/mac/browser_link.js
new file mode 100644
index 0000000000..b4597e10f4
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_link.js
@@ -0,0 +1,222 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+/**
+ * Test visited link properties.
+ */
+addAccessibleTask(
+  `
+  <a id="link" href="http://www.example.com/">I am a non-visited link</a><br>
+  `,
+  async (browser, accDoc) => {
+    let link = getNativeInterface(accDoc, "link");
+    let stateChanged = waitForEvent(EVENT_STATE_CHANGE, "link");
+
+    is(link.getAttributeValue("AXVisited"), 0, "Link has not been visited");
+
+    // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+    await PlacesTestUtils.addVisits(["http://www.example.com/"]);
+
+    await stateChanged;
+    is(link.getAttributeValue("AXVisited"), 1, "Link has been visited");
+
+    // Ensure history is cleared before running
+    await PlacesUtils.history.clear();
+  }
+);
+
+/**
+ * Test linked vs unlinked anchor tags
+ */
+addAccessibleTask(
+  `
+  <a id="link1" href="#">I am a link link</a>
+  <a id="link2" onclick="console.log('hi')">I am a link-ish link</a>
+  <a id="link3">I am a non-link link</a>
+  `,
+  async (browser, accDoc) => {
+    let link1 = getNativeInterface(accDoc, "link1");
+    is(
+      link1.getAttributeValue("AXRole"),
+      "AXLink",
+      "a[href] gets correct link role"
+    );
+    ok(
+      link1.attributeNames.includes("AXVisited"),
+      "Link has visited attribute"
+    );
+    ok(link1.attributeNames.includes("AXURL"), "Link has URL attribute");
+
+    let link2 = getNativeInterface(accDoc, "link2");
+    is(
+      link2.getAttributeValue("AXRole"),
+      "AXLink",
+      "a[onclick] gets correct link role"
+    );
+    ok(
+      link2.attributeNames.includes("AXVisited"),
+      "Link has visited attribute"
+    );
+    ok(link2.attributeNames.includes("AXURL"), "Link has URL attribute");
+
+    let link3 = getNativeInterface(accDoc, "link3");
+    is(
+      link3.getAttributeValue("AXRole"),
+      "AXGroup",
+      "bare <a> gets correct group role"
+    );
+
+    let onRecreation = waitForEvent(EVENT_SHOW, "link1");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("link1").removeAttribute("href");
+    });
+    await onRecreation;
+    link1 = getNativeInterface(accDoc, "link1");
+    is(
+      link1.getAttributeValue("AXRole"),
+      "AXGroup",
+      "<a> stripped from href gets group role"
+    );
+
+    onRecreation = waitForEvent(EVENT_SHOW, "link2");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("link2").removeAttribute("onclick");
+    });
+    await onRecreation;
+    link2 = getNativeInterface(accDoc, "link2");
+    is(
+      link2.getAttributeValue("AXRole"),
+      "AXGroup",
+      "<a> stripped from onclick gets group role"
+    );
+
+    onRecreation = waitForEvent(EVENT_SHOW, "link3");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("link3")
+        // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+        .setAttribute("href", "http://example.com");
+    });
+    await onRecreation;
+    link3 = getNativeInterface(accDoc, "link3");
+    is(
+      link3.getAttributeValue("AXRole"),
+      "AXLink",
+      "href added to bare a gets link role"
+    );
+
+    ok(
+      link3.attributeNames.includes("AXVisited"),
+      "Link has visited attribute"
+    );
+    ok(link3.attributeNames.includes("AXURL"), "Link has URL attribute");
+  }
+);
+
+/**
+ * Test anchors and linked ui elements attr
+ */
+addAccessibleTask(
+  `
+  <a id="link0" href="http://example.com">I am a link</a>
+  <a id="link1" href="#">I am a link with an empty anchor</a>
+  <a id="link2" href="#hello">I am a link with no corresponding element</a>
+  <a id="link3" href="#world">I am a link with a corresponding element</a>
+  <a id="link4" href="#empty">I jump to an empty element</a>
+  <a id="link5" href="#namedElem">I jump to a named element</a>
+  <a id="link6" href="#emptyNamed">I jump to an empty named element</a>
+  <h1 id="world">I am that element</h1>
+  <h2 id="empty"></h2>
+  <a name="namedElem">I have a name</a>
+  <a name="emptyNamed"></a>
+  <h3>I have no name and no ID</h3>
+  <h4></h4>
+  `,
+  async (browser, accDoc) => {
+    let link0 = getNativeInterface(accDoc, "link0");
+    let link1 = getNativeInterface(accDoc, "link1");
+    let link2 = getNativeInterface(accDoc, "link2");
+    let link3 = getNativeInterface(accDoc, "link3");
+    let link4 = getNativeInterface(accDoc, "link4");
+    let link5 = getNativeInterface(accDoc, "link5");
+    let link6 = getNativeInterface(accDoc, "link6");
+
+    is(
+      link0.getAttributeValue("AXLinkedUIElements").length,
+      0,
+      "Link 0 has no linked UI elements"
+    );
+    is(
+      link1.getAttributeValue("AXLinkedUIElements").length,
+      0,
+      "Link 1 has no linked UI elements"
+    );
+    is(
+      link2.getAttributeValue("AXLinkedUIElements").length,
+      0,
+      "Link 2 has no linked UI elements"
+    );
+    is(
+      link3.getAttributeValue("AXLinkedUIElements").length,
+      1,
+      "Link 3 has one linked UI element"
+    );
+    is(
+      link3
+        .getAttributeValue("AXLinkedUIElements")[0]
+        .getAttributeValue("AXTitle"),
+      "I am that element",
+      "Link 3 is linked to the heading"
+    );
+    is(
+      link4.getAttributeValue("AXLinkedUIElements").length,
+      1,
+      "Link 4 has one linked UI element"
+    );
+    is(
+      link4
+        .getAttributeValue("AXLinkedUIElements")[0]
+        .getAttributeValue("AXTitle"),
+      null,
+      "Link 4 is linked to the heading"
+    );
+    is(
+      link5.getAttributeValue("AXLinkedUIElements").length,
+      1,
+      "Link 5 has one linked UI element"
+    );
+    is(
+      link5
+        .getAttributeValue("AXLinkedUIElements")[0]
+        .getAttributeValue("AXTitle"),
+      "",
+      "Link 5 is linked to a named element"
+    );
+    is(
+      link6.getAttributeValue("AXLinkedUIElements").length,
+      1,
+      "Link 6 has one linked UI element"
+    );
+    is(
+      link6
+        .getAttributeValue("AXLinkedUIElements")[0]
+        .getAttributeValue("AXTitle"),
+      "",
+      "Link 6 is linked to an empty named element"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_live_regions.js b/accessible/tests/browser/mac/browser_live_regions.js
new file mode 100644
index 0000000000..10a03120f8
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_live_regions.js
@@ -0,0 +1,165 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test live region creation and removal.
+ */
+addAccessibleTask(
+  `
+  <div id="polite" aria-relevant="removals">Polite region</div>
+  <div id="assertive" aria-live="assertive">Assertive region</div>
+  `,
+  async (browser, accDoc) => {
+    let politeRegion = getNativeInterface(accDoc, "polite");
+    ok(
+      !politeRegion.attributeNames.includes("AXARIALive"),
+      "region is not live"
+    );
+
+    let liveRegionAdded = waitForMacEvent("AXLiveRegionCreated", "polite");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("polite")
+        .setAttribute("aria-atomic", "true");
+      content.document
+        .getElementById("polite")
+        .setAttribute("aria-live", "polite");
+    });
+    await liveRegionAdded;
+    is(
+      politeRegion.getAttributeValue("AXARIALive"),
+      "polite",
+      "region is now live"
+    );
+    ok(politeRegion.getAttributeValue("AXARIAAtomic"), "region is atomic");
+    is(
+      politeRegion.getAttributeValue("AXARIARelevant"),
+      "removals",
+      "region has defined aria-relevant"
+    );
+
+    let assertiveRegion = getNativeInterface(accDoc, "assertive");
+    is(
+      assertiveRegion.getAttributeValue("AXARIALive"),
+      "assertive",
+      "region is assertive"
+    );
+    ok(
+      !assertiveRegion.getAttributeValue("AXARIAAtomic"),
+      "region is not atomic"
+    );
+    is(
+      assertiveRegion.getAttributeValue("AXARIARelevant"),
+      "additions text",
+      "region has default aria-relevant"
+    );
+
+    let liveRegionRemoved = waitForEvent(
+      EVENT_LIVE_REGION_REMOVED,
+      "assertive"
+    );
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("assertive").removeAttribute("aria-live");
+    });
+    await liveRegionRemoved;
+    ok(!assertiveRegion.getAttributeValue("AXARIALive"), "region is not live");
+
+    liveRegionAdded = waitForMacEvent("AXLiveRegionCreated", "new-region");
+    await SpecialPowers.spawn(browser, [], () => {
+      let newRegionElm = content.document.createElement("div");
+      newRegionElm.id = "new-region";
+      newRegionElm.setAttribute("aria-live", "assertive");
+      content.document.body.appendChild(newRegionElm);
+    });
+    await liveRegionAdded;
+
+    let newRegion = getNativeInterface(accDoc, "new-region");
+    is(
+      newRegion.getAttributeValue("AXARIALive"),
+      "assertive",
+      "region is assertive"
+    );
+
+    let loadComplete = Promise.all([
+      waitForMacEvent("AXLoadComplete"),
+      waitForMacEvent("AXLiveRegionCreated", "region-1"),
+      waitForMacEvent("AXLiveRegionCreated", "region-2"),
+      waitForMacEvent("AXLiveRegionCreated", "status"),
+      waitForMacEvent("AXLiveRegionCreated", "output"),
+    ]);
+
+    await SpecialPowers.spawn(browser, [], () => {
+      content.location = `data:text/html;charset=utf-8,
+        <div id="region-1" aria-live="polite"></div>
+        <div id="region-2" aria-live="assertive"></div>
+        <div id="region-3" aria-live="off"></div>
+        <div id="alert" role="alert"></div>
+        <div id="status" role="status"></div>
+        <output id="output"></output>`;
+    });
+    let webArea = (await loadComplete)[0];
+
+    is(webArea.getAttributeValue("AXRole"), "AXWebArea", "web area yeah");
+    const searchPred = {
+      AXSearchKey: "AXLiveRegionSearchKey",
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+    const liveRegions = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    Assert.deepEqual(
+      liveRegions.map(r => r.getAttributeValue("AXDOMIdentifier")),
+      ["region-1", "region-2", "alert", "status", "output"],
+      "SearchPredicate returned all live regions"
+    );
+  }
+);
+
+/**
+ * Test live region changes
+ */
+addAccessibleTask(
+  `
+  <div id="live" aria-live="polite">
+  The time is <span id="time">4:55pm</span>
+  <p id="p" style="display: none">Georgia on my mind</p>
+  <button id="button" aria-label="Start"></button>
+  </div>
+  `,
+  async (browser, accDoc) => {
+    let liveRegionChanged = waitForMacEvent("AXLiveRegionChanged", "live");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("time").textContent = "4:56pm";
+    });
+    await liveRegionChanged;
+    ok(true, "changed textContent");
+
+    liveRegionChanged = waitForMacEvent("AXLiveRegionChanged", "live");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("p").style.display = "block";
+    });
+    await liveRegionChanged;
+    ok(true, "changed display style to block");
+
+    liveRegionChanged = waitForMacEvent("AXLiveRegionChanged", "live");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("p").style.display = "none";
+    });
+    await liveRegionChanged;
+    ok(true, "changed display style to none");
+
+    liveRegionChanged = waitForMacEvent("AXLiveRegionChanged", "live");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("button")
+        .setAttribute("aria-label", "Stop");
+    });
+    await liveRegionChanged;
+    ok(true, "changed aria-label");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_mathml.js b/accessible/tests/browser/mac/browser_mathml.js
new file mode 100644
index 0000000000..d4cf499810
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_mathml.js
@@ -0,0 +1,146 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+function testMathAttr(iface, attr, subrole, textLeafValue) {
+  ok(iface.attributeNames.includes(attr), `Object has ${attr} attribute`);
+  let value = iface.getAttributeValue(attr);
+  is(
+    value.getAttributeValue("AXSubrole"),
+    subrole,
+    `${attr} value has correct subrole`
+  );
+
+  if (textLeafValue) {
+    let children = value.getAttributeValue("AXChildren");
+    is(children.length, 1, `${attr} value has one child`);
+
+    is(
+      children[0].getAttributeValue("AXRole"),
+      "AXStaticText",
+      `${attr} value's child is static text`
+    );
+    is(
+      children[0].getAttributeValue("AXValue"),
+      textLeafValue,
+      `${attr} value has correct text`
+    );
+  }
+}
+
+addAccessibleTask(
+  `<math id="math">
+     <msqrt id="sqrt">
+      <mn>2</mn>
+    </msqrt>
+    </math>`,
+  async (browser, accDoc) => {
+    let math = getNativeInterface(accDoc, "math");
+    is(
+      math.getAttributeValue("AXSubrole"),
+      "AXDocumentMath",
+      "Math element has correct subrole"
+    );
+
+    let sqrt = getNativeInterface(accDoc, "sqrt");
+    is(
+      sqrt.getAttributeValue("AXSubrole"),
+      "AXMathSquareRoot",
+      "msqrt has correct subrole"
+    );
+
+    testMathAttr(sqrt, "AXMathRootRadicand", "AXMathNumber", "2");
+  }
+);
+
+addAccessibleTask(
+  `<math>
+    <mroot id="root">
+      <mi>sin</mi>
+      <mn>3</mn>
+    </mroot>
+  </math>`,
+  async (browser, accDoc) => {
+    let root = getNativeInterface(accDoc, "root");
+    is(
+      root.getAttributeValue("AXSubrole"),
+      "AXMathRoot",
+      "mroot has correct subrole"
+    );
+
+    testMathAttr(root, "AXMathRootRadicand", "AXMathIdentifier", "sin");
+    testMathAttr(root, "AXMathRootIndex", "AXMathNumber", "3");
+  }
+);
+
+addAccessibleTask(
+  `<math>
+    <mfrac id="fraction">
+      <mn>2</mn>
+      <mn>3</mn>
+     </mfrac>
+  </math>`,
+  async (browser, accDoc) => {
+    let fraction = getNativeInterface(accDoc, "fraction");
+    is(
+      fraction.getAttributeValue("AXSubrole"),
+      "AXMathFraction",
+      "mfrac has correct subrole"
+    );
+    ok(fraction.attributeNames.includes("AXMathFractionNumerator"));
+    ok(fraction.attributeNames.includes("AXMathFractionDenominator"));
+    ok(fraction.attributeNames.includes("AXMathLineThickness"));
+
+    // Bug 1639745
+    todo_is(fraction.getAttributeValue("AXMathLineThickness"), 1);
+
+    testMathAttr(fraction, "AXMathFractionNumerator", "AXMathNumber", "2");
+    testMathAttr(fraction, "AXMathFractionDenominator", "AXMathNumber", "3");
+  }
+);
+
+addAccessibleTask(
+  `<math>
+  <msubsup id="subsup">
+    <mo>∫</mo>
+    <mn>0</mn>
+    <mn>1</mn>
+  </msubsup>
+  </math>`,
+  async (browser, accDoc) => {
+    let subsup = getNativeInterface(accDoc, "subsup");
+    is(
+      subsup.getAttributeValue("AXSubrole"),
+      "AXMathSubscriptSuperscript",
+      "msubsup has correct subrole"
+    );
+
+    testMathAttr(subsup, "AXMathSubscript", "AXMathNumber", "0");
+    testMathAttr(subsup, "AXMathSuperscript", "AXMathNumber", "1");
+    testMathAttr(subsup, "AXMathBase", "AXMathOperator", "∫");
+  }
+);
+
+addAccessibleTask(
+  `<math>
+  <munderover id="underover">
+    <mo>∫</mo>
+    <mn>0</mn>
+    <mi>∞</mi>
+  </munderover>
+  </math>`,
+  async (browser, accDoc) => {
+    let underover = getNativeInterface(accDoc, "underover");
+    is(
+      underover.getAttributeValue("AXSubrole"),
+      "AXMathUnderOver",
+      "munderover has correct subrole"
+    );
+
+    testMathAttr(underover, "AXMathUnder", "AXMathNumber", "0");
+    testMathAttr(underover, "AXMathOver", "AXMathIdentifier", "∞");
+    testMathAttr(underover, "AXMathBase", "AXMathOperator", "∫");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_menulist.js b/accessible/tests/browser/mac/browser_menulist.js
new file mode 100644
index 0000000000..b26a0be782
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_menulist.js
@@ -0,0 +1,103 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/attributes.js */
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR },
+  { name: "attributes.js", dir: MOCHITESTS_DIR }
+);
+
+addAccessibleTask(
+  "mac/doc_menulist.xhtml",
+  async (browser, accDoc) => {
+    const menulist = getNativeInterface(accDoc, "defaultZoom");
+
+    let actions = menulist.actionNames;
+    ok(actions.includes("AXPress"), "menu has press action");
+
+    let event = waitForMacEvent("AXMenuOpened");
+    menulist.performAction("AXPress");
+    const menupopup = await event;
+
+    const menuItems = menupopup.getAttributeValue("AXChildren");
+    is(menuItems.length, 4, "Found four children in menulist");
+    is(
+      menuItems[0].getAttributeValue("AXTitle"),
+      "50%",
+      "First item has correct title"
+    );
+    is(
+      menuItems[1].getAttributeValue("AXTitle"),
+      "100%",
+      "Second item has correct title"
+    );
+    is(
+      menuItems[2].getAttributeValue("AXTitle"),
+      "150%",
+      "Third item has correct title"
+    );
+    is(
+      menuItems[3].getAttributeValue("AXTitle"),
+      "200%",
+      "Fourth item has correct title"
+    );
+  },
+  { topLevel: false, chrome: true }
+);
+
+addAccessibleTask(
+  "mac/doc_menulist.xhtml",
+  async (browser, accDoc) => {
+    const menulist = getNativeInterface(accDoc, "defaultZoom");
+
+    const actions = menulist.actionNames;
+    ok(actions.includes("AXPress"), "menu has press action");
+    let event = waitForMacEvent("AXMenuOpened");
+    menulist.performAction("AXPress");
+    await event;
+
+    const menu = menulist.getAttributeValue("AXChildren")[0];
+    ok(menu, "Menulist contains menu");
+    const children = menu.getAttributeValue("AXChildren");
+    is(children.length, 4, "Menu has 4 items");
+
+    // Menu is open, initial focus should land on the first item
+    is(
+      children[0].getAttributeValue("AXSelected"),
+      1,
+      "First menu item is selected"
+    );
+    // focus the second item, and verify it is selected
+    event = waitForMacEvent("AXFocusedUIElementChanged", (iface, data) => {
+      try {
+        return iface.getAttributeValue("AXTitle") == "100%";
+      } catch (e) {
+        return false;
+      }
+    });
+    EventUtils.synthesizeKey("KEY_ArrowDown");
+    await event;
+
+    is(
+      children[0].getAttributeValue("AXSelected"),
+      0,
+      "First menu item is no longer selected"
+    );
+    is(
+      children[1].getAttributeValue("AXSelected"),
+      1,
+      "Second menu item is selected"
+    );
+    // press the second item, check for selected event
+    event = waitForMacEvent("AXMenuItemSelected");
+    children[1].performAction("AXPress");
+    await event;
+  },
+  { topLevel: false, chrome: true }
+);
diff --git a/accessible/tests/browser/mac/browser_navigate.js b/accessible/tests/browser/mac/browser_navigate.js
new file mode 100644
index 0000000000..69486676e4
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_navigate.js
@@ -0,0 +1,394 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test navigation of same/different type content
+ */
+addAccessibleTask(
+  `<h1 id="hello">hello</h1>
+  world<br>
+  <a href="example.com" id="link">I am a link</a>
+  <h1 id="goodbye">goodbye</h1>`,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXSameTypeSearchKey",
+      AXImmediateDescendantsOnly: 0,
+      AXResultsLimit: 1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const hello = getNativeInterface(accDoc, "hello");
+    const goodbye = getNativeInterface(accDoc, "goodbye");
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    searchPred.AXStartElement = hello;
+
+    let sameItem = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(sameItem.length, 1, "Found one item");
+    is(
+      "goodbye",
+      sameItem[0].getAttributeValue("AXTitle"),
+      "Found correct item of same type"
+    );
+
+    searchPred.AXDirection = "AXDirectionPrevious";
+    searchPred.AXStartElement = goodbye;
+    sameItem = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(sameItem.length, 1, "Found one item");
+    is(
+      "hello",
+      sameItem[0].getAttributeValue("AXTitle"),
+      "Found correct item of same type"
+    );
+
+    searchPred.AXSearchKey = "AXDifferentTypeSearchKey";
+    let diffItem = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(diffItem.length, 1, "Found one item");
+    is(
+      "I am a link",
+      diffItem[0].getAttributeValue("AXValue"),
+      "Found correct item of different type"
+    );
+  }
+);
+
+/**
+ * Test navigation of heading levels
+ */
+addAccessibleTask(
+  `
+  <h1 id="a">a</h1>
+  <h2 id="b">b</h2>
+  <h3 id="c">c</h3>
+  <h4 id="d">d</h4>
+  <h5 id="e">e</h5>
+  <h6 id="f">f</h5>
+  <h1 id="g">g</h1>
+  <h2 id="h">h</h2>
+  <h3 id="i">i</h3>
+  <h4 id="j">j</h4>
+  <h5 id="k">k</h5>
+  <h6 id="l">l</h5>
+  this is some regular text that should be ignored
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXHeadingLevel1SearchKey",
+      AXImmediateDescendantsOnly: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    let h1Count = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, h1Count, "Found two h1 items");
+
+    let h1s = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const a = getNativeInterface(accDoc, "a");
+    const g = getNativeInterface(accDoc, "g");
+
+    is(
+      a.getAttributeValue("AXValue"),
+      h1s[0].getAttributeValue("AXValue"),
+      "Found correct h1 heading"
+    );
+
+    is(
+      g.getAttributeValue("AXValue"),
+      h1s[1].getAttributeValue("AXValue"),
+      "Found correct h1 heading"
+    );
+
+    searchPred.AXSearchKey = "AXHeadingLevel2SearchKey";
+
+    let h2Count = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, h2Count, "Found two h2 items");
+
+    let h2s = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const b = getNativeInterface(accDoc, "b");
+    const h = getNativeInterface(accDoc, "h");
+
+    is(
+      b.getAttributeValue("AXValue"),
+      h2s[0].getAttributeValue("AXValue"),
+      "Found correct h2 heading"
+    );
+
+    is(
+      h.getAttributeValue("AXValue"),
+      h2s[1].getAttributeValue("AXValue"),
+      "Found correct h2 heading"
+    );
+
+    searchPred.AXSearchKey = "AXHeadingLevel3SearchKey";
+
+    let h3Count = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, h3Count, "Found two h3 items");
+
+    let h3s = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const c = getNativeInterface(accDoc, "c");
+    const i = getNativeInterface(accDoc, "i");
+
+    is(
+      c.getAttributeValue("AXValue"),
+      h3s[0].getAttributeValue("AXValue"),
+      "Found correct h3 heading"
+    );
+
+    is(
+      i.getAttributeValue("AXValue"),
+      h3s[1].getAttributeValue("AXValue"),
+      "Found correct h3 heading"
+    );
+
+    searchPred.AXSearchKey = "AXHeadingLevel4SearchKey";
+
+    let h4Count = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, h4Count, "Found two h4 items");
+
+    let h4s = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const d = getNativeInterface(accDoc, "d");
+    const j = getNativeInterface(accDoc, "j");
+
+    is(
+      d.getAttributeValue("AXValue"),
+      h4s[0].getAttributeValue("AXValue"),
+      "Found correct h4 heading"
+    );
+
+    is(
+      j.getAttributeValue("AXValue"),
+      h4s[1].getAttributeValue("AXValue"),
+      "Found correct h4 heading"
+    );
+
+    searchPred.AXSearchKey = "AXHeadingLevel5SearchKey";
+
+    let h5Count = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, h5Count, "Found two h5 items");
+
+    let h5s = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const e = getNativeInterface(accDoc, "e");
+    const k = getNativeInterface(accDoc, "k");
+
+    is(
+      e.getAttributeValue("AXValue"),
+      h5s[0].getAttributeValue("AXValue"),
+      "Found correct h5 heading"
+    );
+
+    is(
+      k.getAttributeValue("AXValue"),
+      h5s[1].getAttributeValue("AXValue"),
+      "Found correct h5 heading"
+    );
+
+    searchPred.AXSearchKey = "AXHeadingLevel6SearchKey";
+
+    let h6Count = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, h6Count, "Found two h6 items");
+
+    let h6s = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const f = getNativeInterface(accDoc, "f");
+    const l = getNativeInterface(accDoc, "l");
+
+    is(
+      f.getAttributeValue("AXValue"),
+      h6s[0].getAttributeValue("AXValue"),
+      "Found correct h6 heading"
+    );
+
+    is(
+      l.getAttributeValue("AXValue"),
+      h6s[1].getAttributeValue("AXValue"),
+      "Found correct h6 heading"
+    );
+  }
+);
+
+/*
+ * Test rotor with blockquotes
+ */
+addAccessibleTask(
+  `
+  <blockquote id="first">hello I am a blockquote</blockquote>
+  <blockquote id="second">
+    I am also a blockquote of the same level
+    <br>
+    <blockquote id="third">but I have a different level</blockquote>
+  </blockquote>
+  `,
+  (browser, accDoc) => {
+    let searchPred = {
+      AXSearchKey: "AXBlockquoteSearchKey",
+      AXImmediateDescendantsOnly: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    let bquotes = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(bquotes.length, 3, "Found three blockquotes");
+
+    const first = getNativeInterface(accDoc, "first");
+    const second = getNativeInterface(accDoc, "second");
+    const third = getNativeInterface(accDoc, "third");
+    console.log("values :");
+    console.log(first.getAttributeValue("AXValue"));
+    is(
+      first.getAttributeValue("AXValue"),
+      bquotes[0].getAttributeValue("AXValue"),
+      "Found correct first blockquote"
+    );
+
+    is(
+      second.getAttributeValue("AXValue"),
+      bquotes[1].getAttributeValue("AXValue"),
+      "Found correct second blockquote"
+    );
+
+    is(
+      third.getAttributeValue("AXValue"),
+      bquotes[2].getAttributeValue("AXValue"),
+      "Found correct third blockquote"
+    );
+  }
+);
+
+/*
+ * Test rotor with graphics
+ */
+addAccessibleTask(
+  `
+  <img id="img1" alt="image one" src="http://example.com/a11y/accessible/tests/mochitest/moz.png"><br>
+  <a href="http://example.com">
+    <img id="img2" alt="image two" src="http://example.com/a11y/accessible/tests/mochitest/moz.png">
+  </a>
+  <img src="" id="img3">
+  `,
+  (browser, accDoc) => {
+    let searchPred = {
+      AXSearchKey: "AXGraphicSearchKey",
+      AXImmediateDescendantsOnly: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    let images = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(images.length, 3, "Found three images");
+
+    const img1 = getNativeInterface(accDoc, "img1");
+    const img2 = getNativeInterface(accDoc, "img2");
+    const img3 = getNativeInterface(accDoc, "img3");
+
+    is(
+      img1.getAttributeValue("AXDescription"),
+      images[0].getAttributeValue("AXDescription"),
+      "Found correct image"
+    );
+
+    is(
+      img2.getAttributeValue("AXDescription"),
+      images[1].getAttributeValue("AXDescription"),
+      "Found correct image"
+    );
+
+    is(
+      img3.getAttributeValue("AXDescription"),
+      images[2].getAttributeValue("AXDescription"),
+      "Found correct image"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_outline.js b/accessible/tests/browser/mac/browser_outline.js
new file mode 100644
index 0000000000..ba211fdf4b
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_outline.js
@@ -0,0 +1,566 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/states.js */
+loadScripts({ name: "states.js", dir: MOCHITESTS_DIR });
+
+/**
+ * Test outline, outline rows with computed properties
+ */
+addAccessibleTask(
+  `
+  <h3 id="tree1">
+    Foods
+  </h3>
+  <ul role="tree" aria-labelledby="tree1" id="outline">
+    <li role="treeitem" aria-expanded="false">
+      <span>
+        Fruits
+      </span>
+      <ul>
+        <li role="none">Oranges</li>
+        <li role="treeitem" aria-expanded="true">
+          <span>
+            Apples
+          </span>
+          <ul role="group">
+            <li role="none">Honeycrisp</li>
+            <li role="none">Granny Smith</li>
+          </ul>
+        </li>
+      </ul>
+    </li>
+    <li id="vegetables" role="treeitem" aria-expanded="false">
+      <span>
+        Vegetables
+      </span>
+      <ul role="group">
+        <li role="treeitem" aria-expanded="true">
+          <span>
+            Podded Vegetables
+          </span>
+          <ul role="group">
+            <li role="none">Lentil</li>
+            <li role="none">Pea</li>
+          </ul>
+        </li>
+      </ul>
+    </li>
+  </ul>
+  `,
+  async (browser, accDoc) => {
+    const outline = getNativeInterface(accDoc, "outline");
+    is(
+      outline.getAttributeValue("AXRole"),
+      "AXOutline",
+      "Correct role for outline"
+    );
+
+    const outChildren = outline.getAttributeValue("AXChildren");
+    is(outChildren.length, 2, "Outline has two direct children");
+    is(outChildren[0].getAttributeValue("AXSubrole"), "AXOutlineRow");
+    is(outChildren[1].getAttributeValue("AXSubrole"), "AXOutlineRow");
+
+    const outRows = outline.getAttributeValue("AXRows");
+    is(outRows.length, 4, "Outline has four rows");
+    is(
+      outRows[0].getAttributeValue("AXDisclosing"),
+      0,
+      "Row is not disclosing"
+    );
+    is(
+      outRows[0].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Row is direct child of outline"
+    );
+    is(
+      outRows[0].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Row has no row children, only group"
+    );
+    is(
+      outRows[0].getAttributeValue("AXDisclosureLevel"),
+      0,
+      "Row is level zero"
+    );
+
+    is(outRows[1].getAttributeValue("AXDisclosing"), 1, "Row is disclosing");
+    is(
+      outRows[1].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Row is direct child of group"
+    );
+    is(
+      outRows[1].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Row has no row children"
+    );
+    is(
+      outRows[1].getAttributeValue("AXDisclosureLevel"),
+      0,
+      "Row is level zero"
+    );
+
+    is(
+      outRows[2].getAttributeValue("AXDisclosing"),
+      0,
+      "Row is not disclosing"
+    );
+    is(
+      outRows[2].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Row is direct child of outline"
+    );
+    is(
+      outRows[2].getAttributeValue("AXDisclosedRows").length,
+      1,
+      "Row has one row child"
+    );
+    is(
+      outRows[2].getAttributeValue("AXDisclosureLevel"),
+      0,
+      "Row is level zero"
+    );
+
+    is(outRows[3].getAttributeValue("AXDisclosing"), 1, "Row is disclosing");
+    is(
+      outRows[3]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      outRows[2].getAttributeValue("AXDescription"),
+      "Row is direct child of row[2]"
+    );
+    is(
+      outRows[3].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Row has no row children"
+    );
+    is(
+      outRows[3].getAttributeValue("AXDisclosureLevel"),
+      1,
+      "Row is level one"
+    );
+
+    let evt = waitForMacEvent("AXRowExpanded", "vegetables");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("vegetables")
+        .setAttribute("aria-expanded", "true");
+    });
+    await evt;
+    is(
+      outRows[2].getAttributeValue("AXDisclosing"),
+      1,
+      "Row is disclosing after being expanded"
+    );
+
+    evt = waitForMacEvent("AXRowCollapsed", "vegetables");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("vegetables")
+        .setAttribute("aria-expanded", "false");
+    });
+    await evt;
+    is(
+      outRows[2].getAttributeValue("AXDisclosing"),
+      0,
+      "Row is not disclosing after being collapsed again"
+    );
+  }
+);
+
+/**
+ * Test outline, outline rows with declared properties
+ */
+addAccessibleTask(
+  `
+  <h3 id="tree1">
+  Foods
+  </h3>
+  <ul role="tree" aria-labelledby="tree1" id="outline">
+    <li role="treeitem"
+        aria-level="1"
+        aria-setsize="2"
+        aria-posinset="1"
+        aria-expanded="false">
+      <span>
+        Fruits
+      </span>
+      <ul>
+        <li role="treeitem"
+             aria-level="3"
+             aria-setsize="2"
+             aria-posinset="1">
+            Oranges
+        </li>
+        <li role="treeitem"
+            aria-level="2"
+            aria-setsize="2"
+            aria-posinset="2"
+            aria-expanded="true">
+          <span>
+            Apples
+          </span>
+          <ul role="group">
+            <li role="treeitem"
+                 aria-level="3"
+                 aria-setsize="2"
+                 aria-posinset="1">
+                Honeycrisp
+            </li>
+            <li role="treeitem"
+                 aria-level="3"
+                 aria-setsize="2"
+                 aria-posinset="2">
+               Granny Smith
+            </li>
+          </ul>
+        </li>
+      </ul>
+    </li>
+    <li role="treeitem"
+        aria-level="1"
+        aria-setsize="2"
+        aria-posinset="2"
+        aria-expanded="false">
+      <span>
+        Vegetables
+      </span>
+      <ul role="group">
+        <li role="treeitem"
+            aria-level="2"
+            aria-setsize="1"
+            aria-posinset="1"
+            aria-expanded="true">
+          <span>
+            Podded Vegetables
+          </span>
+          <ul role="group">
+            <li role="treeitem"
+                 aria-level="3"
+                 aria-setsize="2"
+                 aria-posinset="1">
+               Lentil
+            </li>
+            <li role="treeitem"
+                 aria-level="3"
+                 aria-setsize="2"
+                 aria-posinset="2">
+                 Pea
+            </li>
+          </ul>
+        </li>
+      </ul>
+    </li>
+  </ul>
+  `,
+  async (browser, accDoc) => {
+    const outline = getNativeInterface(accDoc, "outline");
+    is(
+      outline.getAttributeValue("AXRole"),
+      "AXOutline",
+      "Correct role for outline"
+    );
+
+    const outChildren = outline.getAttributeValue("AXChildren");
+    is(outChildren.length, 2, "Outline has two direct children");
+    is(outChildren[0].getAttributeValue("AXSubrole"), "AXOutlineRow");
+    is(outChildren[1].getAttributeValue("AXSubrole"), "AXOutlineRow");
+
+    const outRows = outline.getAttributeValue("AXRows");
+    is(outRows.length, 9, "Outline has nine rows");
+    is(
+      outRows[0].getAttributeValue("AXDisclosing"),
+      0,
+      "Row is not disclosing"
+    );
+    is(
+      outRows[0].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Row is direct child of outline"
+    );
+    is(
+      outRows[0].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Row has no direct row children, has list"
+    );
+    is(
+      outRows[0].getAttributeValue("AXDisclosureLevel"),
+      0,
+      "Row is level zero"
+    );
+
+    is(outRows[2].getAttributeValue("AXDisclosing"), 1, "Row is disclosing");
+    is(
+      outRows[2].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Row is direct child of group"
+    );
+    is(
+      outRows[2].getAttributeValue("AXDisclosedRows").length,
+      2,
+      "Row has two row children"
+    );
+    is(
+      outRows[2].getAttributeValue("AXDisclosureLevel"),
+      1,
+      "Row is level one"
+    );
+
+    is(
+      outRows[3].getAttributeValue("AXDisclosing"),
+      0,
+      "Row is not disclosing"
+    );
+    is(
+      outRows[3]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      outRows[2].getAttributeValue("AXDescription"),
+      "Row is direct child of row 2"
+    );
+
+    is(
+      outRows[3].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Row has no row children"
+    );
+    is(
+      outRows[3].getAttributeValue("AXDisclosureLevel"),
+      2,
+      "Row is level two"
+    );
+
+    is(
+      outRows[5].getAttributeValue("AXDisclosing"),
+      0,
+      "Row is not disclosing"
+    );
+    is(
+      outRows[5].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Row is direct child of outline"
+    );
+    is(
+      outRows[5].getAttributeValue("AXDisclosedRows").length,
+      1,
+      "Row has no one row child"
+    );
+    is(
+      outRows[5].getAttributeValue("AXDisclosureLevel"),
+      0,
+      "Row is level zero"
+    );
+
+    is(outRows[6].getAttributeValue("AXDisclosing"), 1, "Row is disclosing");
+    is(
+      outRows[6]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      outRows[5].getAttributeValue("AXDescription"),
+      "Row is direct child of row 5"
+    );
+    is(
+      outRows[6].getAttributeValue("AXDisclosedRows").length,
+      2,
+      "Row has two row children"
+    );
+    is(
+      outRows[6].getAttributeValue("AXDisclosureLevel"),
+      1,
+      "Row is level one"
+    );
+
+    is(
+      outRows[7].getAttributeValue("AXDisclosing"),
+      0,
+      "Row is not disclosing"
+    );
+    is(
+      outRows[7]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      outRows[6].getAttributeValue("AXDescription"),
+      "Row is direct child of row 6"
+    );
+    is(
+      outRows[7].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Row has no row children"
+    );
+    is(
+      outRows[7].getAttributeValue("AXDisclosureLevel"),
+      2,
+      "Row is level two"
+    );
+  }
+);
+
+// Test outline that isn't built with li/uls gets correct desc
+addAccessibleTask(
+  `
+  <div role="tree" id="tree" tabindex="0" aria-label="My drive" aria-activedescendant="myfiles">
+    <div id="myfiles" role="treeitem" aria-label="My files" aria-selected="true" aria-expanded="false">My files</div>
+    <div role="treeitem" aria-label="Shared items" aria-selected="false" aria-expanded="false">Shared items</div>
+  </div>
+  `,
+  async (browser, accDoc) => {
+    const tree = getNativeInterface(accDoc, "tree");
+    is(tree.getAttributeValue("AXRole"), "AXOutline", "Correct role for tree");
+
+    const treeItems = tree.getAttributeValue("AXChildren");
+    is(treeItems.length, 2, "Outline has two direct children");
+    is(treeItems[0].getAttributeValue("AXSubrole"), "AXOutlineRow");
+    is(treeItems[1].getAttributeValue("AXSubrole"), "AXOutlineRow");
+
+    const outRows = tree.getAttributeValue("AXRows");
+    is(outRows.length, 2, "Outline has two rows");
+
+    is(
+      outRows[0].getAttributeValue("AXDescription"),
+      "My files",
+      "files labelled correctly"
+    );
+    is(
+      outRows[1].getAttributeValue("AXDescription"),
+      "Shared items",
+      "shared items labelled correctly"
+    );
+  }
+);
+
+// Test outline registers AXDisclosed attr as settable
+addAccessibleTask(
+  `
+  <div role="tree" id="tree" tabindex="0" aria-label="My drive" aria-activedescendant="myfiles">
+    <div id="myfiles" role="treeitem" aria-label="My files" aria-selected="true" aria-expanded="false">My files</div>
+    <div role="treeitem" aria-label="Shared items" aria-selected="false" aria-expanded="true">Shared items</div>
+  </div>
+  `,
+  async (browser, accDoc) => {
+    const tree = getNativeInterface(accDoc, "tree");
+    const treeItems = tree.getAttributeValue("AXChildren");
+
+    is(treeItems.length, 2, "Outline has two direct children");
+    is(treeItems[0].getAttributeValue("AXDisclosing"), 0);
+    is(treeItems[1].getAttributeValue("AXDisclosing"), 1);
+
+    is(treeItems[0].isAttributeSettable("AXDisclosing"), true);
+    is(treeItems[1].isAttributeSettable("AXDisclosing"), true);
+
+    // attempt to change attribute values
+    treeItems[0].setAttributeValue("AXDisclosing", 1);
+    treeItems[0].setAttributeValue("AXDisclosing", 0);
+
+    // verify they're unchanged
+    is(treeItems[0].getAttributeValue("AXDisclosing"), 0);
+    is(treeItems[1].getAttributeValue("AXDisclosing"), 1);
+  }
+);
+
+// Test outline rows correctly expose checkable, checked/unchecked/mixed status
+addAccessibleTask(
+  `
+  <div role="tree" id="tree">
+    <div role="treeitem" aria-checked="false" id="l1">
+      Leaf 1
+    </div>
+    <div role="treeitem" aria-checked="true" id="l2">
+      Leaf 2
+    </div>
+    <div role="treeitem" id="l3">
+      Leaf 3
+    </div>
+    <div role="treeitem" aria-checked="mixed" id="l4">
+      Leaf 4
+    </div>
+  </div>
+
+  `,
+  async (browser, accDoc) => {
+    const tree = getNativeInterface(accDoc, "tree");
+    const treeItems = tree.getAttributeValue("AXChildren");
+
+    is(treeItems.length, 4, "Outline has four direct children");
+    is(
+      treeItems[0].getAttributeValue("AXValue"),
+      0,
+      "Child one is not checked"
+    );
+    is(treeItems[1].getAttributeValue("AXValue"), 1, "Child two is checked");
+    is(
+      treeItems[2].getAttributeValue("AXValue"),
+      null,
+      "Child three is not checkable and has no val"
+    );
+    is(treeItems[3].getAttributeValue("AXValue"), 2, "Child four is mixed");
+
+    let stateChanged = Promise.all([
+      waitForMacEvent("AXValueChanged", "l1"),
+      waitForStateChange("l1", STATE_CHECKED, true),
+    ]);
+    // We should get a state change event for checked.
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("l1")
+        .setAttribute("aria-checked", "true");
+    });
+    await stateChanged;
+    is(treeItems[0].getAttributeValue("AXValue"), 1, "Child one is checked");
+
+    stateChanged = Promise.all([
+      waitForMacEvent("AXValueChanged", "l2"),
+      waitForMacEvent("AXValueChanged", "l2"),
+      waitForStateChange("l2", STATE_CHECKED, false),
+      waitForStateChange("l2", STATE_CHECKABLE, false),
+    ]);
+    // We should get a state change event for both checked and checkable,
+    // and value changes for both.
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("l2").removeAttribute("aria-checked");
+    });
+    await stateChanged;
+    is(
+      treeItems[1].getAttributeValue("AXValue"),
+      null,
+      "Child two is not checkable and has no val"
+    );
+
+    stateChanged = Promise.all([
+      waitForMacEvent("AXValueChanged", "l3"),
+      waitForMacEvent("AXValueChanged", "l3"),
+      waitForStateChange("l3", STATE_CHECKED, true),
+      waitForStateChange("l3", STATE_CHECKABLE, true),
+    ]);
+    // We should get a state change event for both checked and checkable,
+    // and value changes for each.
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("l3")
+        .setAttribute("aria-checked", "true");
+    });
+    await stateChanged;
+    is(treeItems[2].getAttributeValue("AXValue"), 1, "Child three is checked");
+
+    stateChanged = Promise.all([
+      waitForMacEvent("AXValueChanged", "l4"),
+      waitForMacEvent("AXValueChanged", "l4"),
+      waitForStateChange("l4", STATE_MIXED, false),
+      waitForStateChange("l4", STATE_CHECKABLE, false),
+    ]);
+    // We should get a state change event for both mixed and checkable,
+    // and value changes for each.
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("l4").removeAttribute("aria-checked");
+    });
+    await stateChanged;
+    is(
+      treeItems[3].getAttributeValue("AXValue"),
+      null,
+      "Child four is not checkable and has no value"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_outline_xul.js b/accessible/tests/browser/mac/browser_outline_xul.js
new file mode 100644
index 0000000000..66eebebf50
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_outline_xul.js
@@ -0,0 +1,274 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/attributes.js */
+loadScripts({ name: "attributes.js", dir: MOCHITESTS_DIR });
+
+addAccessibleTask(
+  "mac/doc_tree.xhtml",
+  async (browser, accDoc) => {
+    const tree = getNativeInterface(accDoc, "tree");
+    is(
+      tree.getAttributeValue("AXRole"),
+      "AXOutline",
+      "Found tree with role outline"
+    );
+    // XUL trees store all rows as direct children of the outline,
+    // so we should see nine here instead of just three:
+    // (Groceries, Fruits, Veggies)
+    const treeChildren = tree.getAttributeValue("AXChildren");
+    is(treeChildren.length, 9, "Found nine direct children");
+
+    const treeCols = tree.getAttributeValue("AXColumns");
+    is(treeCols.length, 1, "Found one column in tree");
+
+    // Here, we should get only outline rows, not the title
+    const treeRows = tree.getAttributeValue("AXRows");
+    is(treeRows.length, 8, "Found 8 total rows");
+
+    is(
+      treeRows[0].getAttributeValue("AXDescription"),
+      "Fruits",
+      "Located correct first row, row has correct desc"
+    );
+    is(
+      treeRows[0].getAttributeValue("AXDisclosing"),
+      1,
+      "Fruits is disclosing"
+    );
+    is(
+      treeRows[0].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Fruits is disclosed by outline"
+    );
+    is(
+      treeRows[0].getAttributeValue("AXDisclosureLevel"),
+      0,
+      "Fruits is level zero"
+    );
+    let disclosedRows = treeRows[0].getAttributeValue("AXDisclosedRows");
+    is(disclosedRows.length, 2, "Fruits discloses two rows");
+    is(
+      disclosedRows[0].getAttributeValue("AXDescription"),
+      "Apple",
+      "fruits discloses apple"
+    );
+    is(
+      disclosedRows[1].getAttributeValue("AXDescription"),
+      "Orange",
+      "fruits discloses orange"
+    );
+
+    is(
+      treeRows[1].getAttributeValue("AXDescription"),
+      "Apple",
+      "Located correct second row, row has correct desc"
+    );
+    is(
+      treeRows[1].getAttributeValue("AXDisclosing"),
+      0,
+      "Apple is not disclosing"
+    );
+    is(
+      treeRows[1]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      "Fruits",
+      "Apple is disclosed by fruits"
+    );
+    is(
+      treeRows[1].getAttributeValue("AXDisclosureLevel"),
+      1,
+      "Apple is level one"
+    );
+    is(
+      treeRows[1].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Apple does not disclose rows"
+    );
+
+    is(
+      treeRows[2].getAttributeValue("AXDescription"),
+      "Orange",
+      "Located correct third row, row has correct desc"
+    );
+    is(
+      treeRows[2].getAttributeValue("AXDisclosing"),
+      0,
+      "Orange is not disclosing"
+    );
+    is(
+      treeRows[2]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      "Fruits",
+      "Orange is disclosed by fruits"
+    );
+    is(
+      treeRows[2].getAttributeValue("AXDisclosureLevel"),
+      1,
+      "Orange is level one"
+    );
+    is(
+      treeRows[2].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Orange does not disclose rows"
+    );
+
+    is(
+      treeRows[3].getAttributeValue("AXDescription"),
+      "Veggies",
+      "Located correct fourth row, row has correct desc"
+    );
+    is(
+      treeRows[3].getAttributeValue("AXDisclosing"),
+      1,
+      "Veggies is disclosing"
+    );
+    is(
+      treeRows[3].getAttributeValue("AXDisclosedByRow"),
+      null,
+      "Veggies is disclosed by outline"
+    );
+    is(
+      treeRows[3].getAttributeValue("AXDisclosureLevel"),
+      0,
+      "Veggies is level zero"
+    );
+    disclosedRows = treeRows[3].getAttributeValue("AXDisclosedRows");
+    is(disclosedRows.length, 2, "Veggies discloses two rows");
+    is(
+      disclosedRows[0].getAttributeValue("AXDescription"),
+      "Green Veggies",
+      "Veggies discloses green veggies"
+    );
+    is(
+      disclosedRows[1].getAttributeValue("AXDescription"),
+      "Squash",
+      "Veggies discloses squash"
+    );
+
+    is(
+      treeRows[4].getAttributeValue("AXDescription"),
+      "Green Veggies",
+      "Located correct fifth row, row has correct desc"
+    );
+    is(
+      treeRows[4].getAttributeValue("AXDisclosing"),
+      1,
+      "Green veggies is disclosing"
+    );
+    is(
+      treeRows[4]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      "Veggies",
+      "Green Veggies is disclosed by veggies"
+    );
+    is(
+      treeRows[4].getAttributeValue("AXDisclosureLevel"),
+      1,
+      "Green veggies is level one"
+    );
+    disclosedRows = treeRows[4].getAttributeValue("AXDisclosedRows");
+    is(disclosedRows.length, 2, "Green veggies has two rows");
+    is(
+      disclosedRows[0].getAttributeValue("AXDescription"),
+      "Spinach",
+      "Green veggies discloses spinach"
+    );
+    is(
+      disclosedRows[1].getAttributeValue("AXDescription"),
+      "Peas",
+      "Green veggies discloses peas"
+    );
+
+    is(
+      treeRows[5].getAttributeValue("AXDescription"),
+      "Spinach",
+      "Located correct sixth row, row has correct desc"
+    );
+    is(
+      treeRows[5].getAttributeValue("AXDisclosing"),
+      0,
+      "Spinach is not disclosing"
+    );
+    is(
+      treeRows[5]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      "Green Veggies",
+      "Spinach is disclosed by green veggies"
+    );
+    is(
+      treeRows[5].getAttributeValue("AXDisclosureLevel"),
+      2,
+      "Spinach is level two"
+    );
+    is(
+      treeRows[5].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Spinach does not disclose rows"
+    );
+
+    is(
+      treeRows[6].getAttributeValue("AXDescription"),
+      "Peas",
+      "Located correct seventh row, row has correct desc"
+    );
+    is(
+      treeRows[6].getAttributeValue("AXDisclosing"),
+      0,
+      "Peas is not disclosing"
+    );
+    is(
+      treeRows[6]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      "Green Veggies",
+      "Peas is disclosed by green veggies"
+    );
+    is(
+      treeRows[6].getAttributeValue("AXDisclosureLevel"),
+      2,
+      "Peas is level two"
+    );
+    is(
+      treeRows[6].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Peas does not disclose rows"
+    );
+
+    is(
+      treeRows[7].getAttributeValue("AXDescription"),
+      "Squash",
+      "Located correct eighth row, row has correct desc"
+    );
+    is(
+      treeRows[7].getAttributeValue("AXDisclosing"),
+      0,
+      "Squash is not disclosing"
+    );
+    is(
+      treeRows[7]
+        .getAttributeValue("AXDisclosedByRow")
+        .getAttributeValue("AXDescription"),
+      "Veggies",
+      "Squash is disclosed by veggies"
+    );
+    is(
+      treeRows[7].getAttributeValue("AXDisclosureLevel"),
+      1,
+      "Squash is level one"
+    );
+    is(
+      treeRows[7].getAttributeValue("AXDisclosedRows").length,
+      0,
+      "Squash does not disclose rows"
+    );
+  },
+  { topLevel: false, chrome: true }
+);
diff --git a/accessible/tests/browser/mac/browser_popupbutton.js b/accessible/tests/browser/mac/browser_popupbutton.js
new file mode 100644
index 0000000000..2d5ff1ac35
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_popupbutton.js
@@ -0,0 +1,166 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+// Test dropdown select element
+addAccessibleTask(
+  `<select id="select" aria-label="Choose a number">
+    <option id="one" selected>One</option>
+    <option id="two">Two</option>
+    <option id="three">Three</option>
+    <option id="four" disabled>Four</option>
+  </select>`,
+  async (browser, accDoc) => {
+    // Test combobox
+    let select = getNativeInterface(accDoc, "select");
+    is(
+      select.getAttributeValue("AXRole"),
+      "AXPopUpButton",
+      "select has AXPopupButton role"
+    );
+    ok(select.attributeNames.includes("AXValue"), "select advertises AXValue");
+    is(
+      select.getAttributeValue("AXValue"),
+      "One",
+      "select has correctt initial value"
+    );
+    ok(
+      !select.attributeNames.includes("AXHasPopup"),
+      "select does not advertise AXHasPopup"
+    );
+    is(
+      select.getAttributeValue("AXHasPopup"),
+      null,
+      "select does not provide value for AXHasPopup"
+    );
+
+    ok(select.actionNames.includes("AXPress"), "Selectt has press action");
+    // These four events happen in quick succession when select is pressed
+    let events = Promise.all([
+      waitForMacEvent("AXMenuOpened"),
+      waitForMacEvent("AXSelectedChildrenChanged"),
+      waitForMacEvent(
+        "AXFocusedUIElementChanged",
+        e => e.getAttributeValue("AXRole") == "AXPopUpButton"
+      ),
+      waitForMacEvent(
+        "AXFocusedUIElementChanged",
+        e => e.getAttributeValue("AXRole") == "AXMenuItem"
+      ),
+    ]);
+    select.performAction("AXPress");
+    // Only capture the target of AXMenuOpened (first element)
+    let [menu] = await events;
+
+    is(menu.getAttributeValue("AXRole"), "AXMenu", "dropdown has AXMenu role");
+    is(
+      menu.getAttributeValue("AXSelectedChildren").length,
+      1,
+      "dropdown has single selected child"
+    );
+
+    let selectedChildren = menu.getAttributeValue("AXSelectedChildren");
+    is(selectedChildren.length, 1, "Only one child is selected");
+    is(selectedChildren[0].getAttributeValue("AXRole"), "AXMenuItem");
+    is(selectedChildren[0].getAttributeValue("AXTitle"), "One");
+
+    let menuParent = menu.getAttributeValue("AXParent");
+    is(
+      menuParent.getAttributeValue("AXRole"),
+      "AXPopUpButton",
+      "dropdown parent is a popup button"
+    );
+
+    let menuItems = menu.getAttributeValue("AXChildren").map(c => {
+      return [
+        c.getAttributeValue("AXMenuItemMarkChar"),
+        c.getAttributeValue("AXRole"),
+        c.getAttributeValue("AXTitle"),
+        c.getAttributeValue("AXEnabled"),
+      ];
+    });
+
+    Assert.deepEqual(
+      menuItems,
+      [
+        ["✓", "AXMenuItem", "One", true],
+        [null, "AXMenuItem", "Two", true],
+        [null, "AXMenuItem", "Three", true],
+        [null, "AXMenuItem", "Four", false],
+      ],
+      "Menu items have correct checkmark on current value, correctt roles, correct titles, and correct AXEnabled value"
+    );
+
+    events = Promise.all([
+      waitForMacEvent("AXSelectedChildrenChanged"),
+      waitForMacEvent("AXFocusedUIElementChanged"),
+    ]);
+    EventUtils.synthesizeKey("KEY_ArrowDown");
+    let [, menuItem] = await events;
+    is(
+      menuItem.getAttributeValue("AXTitle"),
+      "Two",
+      "Focused menu item has correct title"
+    );
+
+    selectedChildren = menu.getAttributeValue("AXSelectedChildren");
+    is(selectedChildren.length, 1, "Only one child is selected");
+    is(
+      selectedChildren[0].getAttributeValue("AXTitle"),
+      "Two",
+      "Selected child matches focused item"
+    );
+
+    events = Promise.all([
+      waitForMacEvent("AXSelectedChildrenChanged"),
+      waitForMacEvent("AXFocusedUIElementChanged"),
+    ]);
+    EventUtils.synthesizeKey("KEY_ArrowDown");
+    [, menuItem] = await events;
+    is(
+      menuItem.getAttributeValue("AXTitle"),
+      "Three",
+      "Focused menu item has correct title"
+    );
+
+    selectedChildren = menu.getAttributeValue("AXSelectedChildren");
+    is(selectedChildren.length, 1, "Only one child is selected");
+    is(
+      selectedChildren[0].getAttributeValue("AXTitle"),
+      "Three",
+      "Selected child matches focused item"
+    );
+
+    events = Promise.all([
+      waitForMacEvent("AXMenuClosed"),
+      waitForMacEvent("AXFocusedUIElementChanged"),
+      waitForMacEvent("AXSelectedChildrenChanged"),
+    ]);
+    menuItem.performAction("AXPress");
+    let [, newFocus] = await events;
+    is(
+      newFocus.getAttributeValue("AXRole"),
+      "AXPopUpButton",
+      "Newly focused element is AXPopupButton"
+    );
+    is(
+      newFocus.getAttributeValue("AXDOMIdentifier"),
+      "select",
+      "Should return focus to select"
+    );
+    is(
+      newFocus.getAttributeValue("AXValue"),
+      "Three",
+      "select has correct new value"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_radio_position.js b/accessible/tests/browser/mac/browser_radio_position.js
new file mode 100644
index 0000000000..76f518a91e
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_radio_position.js
@@ -0,0 +1,321 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+function getChildRoles(parent) {
+  return parent
+    .getAttributeValue("AXChildren")
+    .map(c => c.getAttributeValue("AXRole"));
+}
+
+function getLinkedTitles(element) {
+  return element
+    .getAttributeValue("AXLinkedUIElements")
+    .map(c => c.getAttributeValue("AXTitle"));
+}
+
+/**
+ * Test radio group
+ */
+addAccessibleTask(
+  `<div role="radiogroup" id="radioGroup">
+    <div role="radio"
+         id="radioGroupItem1">
+       Regular crust
+    </div>
+    <div role="radio"
+         id="radioGroupItem2">
+       Deep dish
+    </div>
+    <div role="radio"
+         id="radioGroupItem3">
+       Thin crust
+    </div>
+  </div>`,
+  async (browser, accDoc) => {
+    let item1 = getNativeInterface(accDoc, "radioGroupItem1");
+    let item2 = getNativeInterface(accDoc, "radioGroupItem2");
+    let item3 = getNativeInterface(accDoc, "radioGroupItem3");
+    let titleList = ["Regular crust", "Deep dish", "Thin crust"];
+
+    Assert.deepEqual(
+      titleList,
+      [item1, item2, item3].map(c => c.getAttributeValue("AXTitle")),
+      "Title list matches"
+    );
+
+    let linkedElems = item1.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Item 1 has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(item1),
+      titleList,
+      "Item one has correctly ordered linked elements"
+    );
+
+    linkedElems = item2.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Item 2 has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(item2),
+      titleList,
+      "Item two has correctly ordered linked elements"
+    );
+
+    linkedElems = item3.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Item 3 has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(item3),
+      titleList,
+      "Item three has correctly ordered linked elements"
+    );
+  }
+);
+
+/**
+ * Test dynamic add to a radio group
+ */
+addAccessibleTask(
+  `<div role="radiogroup" id="radioGroup">
+    <div role="radio"
+         id="radioGroupItem1">
+       Option One
+    </div>
+  </div>`,
+  async (browser, accDoc) => {
+    let item1 = getNativeInterface(accDoc, "radioGroupItem1");
+    let linkedElems = item1.getAttributeValue("AXLinkedUIElements");
+
+    is(linkedElems.length, 1, "Item 1 has one linked UI elem");
+    is(
+      linkedElems[0].getAttributeValue("AXTitle"),
+      item1.getAttributeValue("AXTitle"),
+      "Item 1 is first element"
+    );
+
+    let reorder = waitForEvent(EVENT_REORDER, "radioGroup");
+    await SpecialPowers.spawn(browser, [], () => {
+      let d = content.document.createElement("div");
+      d.setAttribute("role", "radio");
+      content.document.getElementById("radioGroup").appendChild(d);
+    });
+    await reorder;
+
+    let radioGroup = getNativeInterface(accDoc, "radioGroup");
+    let groupMembers = radioGroup.getAttributeValue("AXChildren");
+    is(groupMembers.length, 2, "Radio group has two members");
+    let item2 = groupMembers[1];
+    item1 = getNativeInterface(accDoc, "radioGroupItem1");
+    let titleList = ["Option One", ""];
+
+    Assert.deepEqual(
+      titleList,
+      [item1, item2].map(c => c.getAttributeValue("AXTitle")),
+      "Title list matches"
+    );
+
+    linkedElems = item1.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 2, "Item 1 has two linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(item1),
+      titleList,
+      "Item one has correctly ordered linked elements"
+    );
+
+    linkedElems = item2.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 2, "Item 2 has two linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(item2),
+      titleList,
+      "Item two has correctly ordered linked elements"
+    );
+  }
+);
+
+/**
+ * Test input[type=radio] for single group
+ */
+addAccessibleTask(
+  `<input type="radio" id="cat" name="animal"><label for="cat">Cat</label>
+   <input type="radio" id="dog" name="animal"><label for="dog">Dog</label>
+   <input type="radio" id="catdog" name="animal"><label for="catdog">CatDog</label>`,
+  async (browser, accDoc) => {
+    let cat = getNativeInterface(accDoc, "cat");
+    let dog = getNativeInterface(accDoc, "dog");
+    let catdog = getNativeInterface(accDoc, "catdog");
+    let titleList = ["Cat", "Dog", "CatDog"];
+
+    Assert.deepEqual(
+      titleList,
+      [cat, dog, catdog].map(x => x.getAttributeValue("AXTitle")),
+      "Title list matches"
+    );
+
+    let linkedElems = cat.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Cat has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(cat),
+      titleList,
+      "Cat has correctly ordered linked elements"
+    );
+
+    linkedElems = dog.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Dog has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(dog),
+      titleList,
+      "Dog has correctly ordered linked elements"
+    );
+
+    linkedElems = catdog.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Catdog has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(catdog),
+      titleList,
+      "catdog has correctly ordered linked elements"
+    );
+  }
+);
+
+/**
+ * Test input[type=radio] for different groups
+ */
+addAccessibleTask(
+  `<input type="radio" id="cat" name="one"><label for="cat">Cat</label>
+   <input type="radio" id="dog" name="two"><label for="dog">Dog</label>
+   <input type="radio" id="catdog"><label for="catdog">CatDog</label>`,
+  async (browser, accDoc) => {
+    let cat = getNativeInterface(accDoc, "cat");
+    let dog = getNativeInterface(accDoc, "dog");
+    let catdog = getNativeInterface(accDoc, "catdog");
+
+    let linkedElems = cat.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 1, "Cat has one linked UI elem");
+    is(
+      linkedElems[0].getAttributeValue("AXTitle"),
+      cat.getAttributeValue("AXTitle"),
+      "Cat is only element"
+    );
+
+    linkedElems = dog.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 1, "Dog has one linked UI elem");
+    is(
+      linkedElems[0].getAttributeValue("AXTitle"),
+      dog.getAttributeValue("AXTitle"),
+      "Dog is only element"
+    );
+
+    linkedElems = catdog.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 0, "Catdog has no linked UI elem");
+  }
+);
+
+/**
+ * Test input[type=radio] for single group across DOM
+ */
+addAccessibleTask(
+  `<input type="radio" id="cat" name="animal"><label for="cat">Cat</label>
+   <div>
+    <span>
+      <input type="radio" id="dog" name="animal"><label for="dog">Dog</label>
+    </span>
+   </div>
+   <div>
+   <input type="radio" id="catdog" name="animal"><label for="catdog">CatDog</label>
+   </div>`,
+  async (browser, accDoc) => {
+    let cat = getNativeInterface(accDoc, "cat");
+    let dog = getNativeInterface(accDoc, "dog");
+    let catdog = getNativeInterface(accDoc, "catdog");
+    let titleList = ["Cat", "Dog", "CatDog"];
+
+    Assert.deepEqual(
+      titleList,
+      [cat, dog, catdog].map(x => x.getAttributeValue("AXTitle")),
+      "Title list matches"
+    );
+
+    let linkedElems = cat.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Cat has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(cat),
+      titleList,
+      "cat has correctly ordered linked elements"
+    );
+
+    linkedElems = dog.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Dog has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(dog),
+      titleList,
+      "dog has correctly ordered linked elements"
+    );
+
+    linkedElems = catdog.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 3, "Catdog has three linked UI elems");
+    Assert.deepEqual(
+      getLinkedTitles(catdog),
+      titleList,
+      "catdog has correctly ordered linked elements"
+    );
+  }
+);
+
+/**
+ * Test dynamic add of input[type=radio] in a single group
+ */
+addAccessibleTask(
+  `<div id="container"><input type="radio" id="cat" name="animal"></div>`,
+  async (browser, accDoc) => {
+    let cat = getNativeInterface(accDoc, "cat");
+    let container = getNativeInterface(accDoc, "container");
+
+    let containerChildren = container.getAttributeValue("AXChildren");
+    is(containerChildren.length, 1, "container has one button");
+    is(
+      containerChildren[0].getAttributeValue("AXRole"),
+      "AXRadioButton",
+      "Container child is radio button"
+    );
+
+    let linkedElems = cat.getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 1, "Cat has 1 linked UI elem");
+    is(
+      linkedElems[0].getAttributeValue("AXTitle"),
+      cat.getAttributeValue("AXTitle"),
+      "Cat is first element"
+    );
+    let reorder = waitForEvent(EVENT_REORDER, "container");
+    await SpecialPowers.spawn(browser, [], () => {
+      let input = content.document.createElement("input");
+      input.setAttribute("type", "radio");
+      input.setAttribute("name", "animal");
+      content.document.getElementById("container").appendChild(input);
+    });
+    await reorder;
+
+    container = getNativeInterface(accDoc, "container");
+    containerChildren = container.getAttributeValue("AXChildren");
+
+    is(containerChildren.length, 2, "container has two children");
+
+    Assert.deepEqual(
+      getChildRoles(container),
+      ["AXRadioButton", "AXRadioButton"],
+      "Both children are radio buttons"
+    );
+
+    linkedElems = containerChildren[0].getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 2, "Cat has 2 linked elements");
+
+    linkedElems = containerChildren[1].getAttributeValue("AXLinkedUIElements");
+    is(linkedElems.length, 2, "New button has 2 linked elements");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_range.js b/accessible/tests/browser/mac/browser_range.js
new file mode 100644
index 0000000000..430e41d6ea
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_range.js
@@ -0,0 +1,190 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Verify that the value of a slider input can be incremented/decremented
+ * Test input[type=range]
+ */
+addAccessibleTask(
+  `<input id="range" type="range" min="1" max="100" value="1" step="10">`,
+  async (browser, accDoc) => {
+    let range = getNativeInterface(accDoc, "range");
+    is(range.getAttributeValue("AXRole"), "AXSlider", "Correct AXSlider role");
+    is(range.getAttributeValue("AXValue"), 1, "Correct initial value");
+
+    let actions = range.actionNames;
+    ok(actions.includes("AXDecrement"), "Has decrement action");
+    ok(actions.includes("AXIncrement"), "Has increment action");
+
+    let evt = waitForMacEvent("AXValueChanged");
+    range.performAction("AXIncrement");
+    await evt;
+    is(range.getAttributeValue("AXValue"), 11, "Correct increment value");
+
+    evt = waitForMacEvent("AXValueChanged");
+    range.performAction("AXDecrement");
+    await evt;
+    is(range.getAttributeValue("AXValue"), 1, "Correct decrement value");
+
+    evt = waitForMacEvent("AXValueChanged");
+    // Adjust value via script in content
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("range").value = 41;
+    });
+    await evt;
+    is(
+      range.getAttributeValue("AXValue"),
+      41,
+      "Correct value from content change"
+    );
+  }
+);
+
+/**
+ * Verify that the value of a slider input can be set directly
+ * Test input[type=range]
+ */
+addAccessibleTask(
+  `<input id="range" type="range" min="1" max="100" value="1" step="10">`,
+  async (browser, accDoc) => {
+    let nextValue = 21;
+    let range = getNativeInterface(accDoc, "range");
+    is(range.getAttributeValue("AXRole"), "AXSlider", "Correct AXSlider role");
+    is(range.getAttributeValue("AXValue"), 1, "Correct initial value");
+
+    ok(range.isAttributeSettable("AXValue"), "Range AXValue is settable.");
+
+    let evt = waitForMacEvent("AXValueChanged");
+    range.setAttributeValue("AXValue", nextValue);
+    await evt;
+    is(range.getAttributeValue("AXValue"), nextValue, "Correct updated value");
+  }
+);
+
+/**
+ * Verify that the value of a number input can be incremented/decremented
+ * Test input[type=number]
+ */
+addAccessibleTask(
+  `<input type="number" value="11" id="number" step=".05">`,
+  async (browser, accDoc) => {
+    let number = getNativeInterface(accDoc, "number");
+    is(
+      number.getAttributeValue("AXRole"),
+      "AXIncrementor",
+      "Correct AXIncrementor role"
+    );
+    is(number.getAttributeValue("AXValue"), 11, "Correct initial value");
+
+    let actions = number.actionNames;
+    ok(actions.includes("AXDecrement"), "Has decrement action");
+    ok(actions.includes("AXIncrement"), "Has increment action");
+
+    let evt = waitForMacEvent("AXValueChanged");
+    number.performAction("AXIncrement");
+    await evt;
+    is(number.getAttributeValue("AXValue"), 11.05, "Correct increment value");
+
+    evt = waitForMacEvent("AXValueChanged");
+    number.performAction("AXDecrement");
+    await evt;
+    is(number.getAttributeValue("AXValue"), 11, "Correct decrement value");
+
+    evt = waitForMacEvent("AXValueChanged");
+    // Adjust value via script in content
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("number").value = 42;
+    });
+    await evt;
+    is(
+      number.getAttributeValue("AXValue"),
+      42,
+      "Correct value from content change"
+    );
+  }
+);
+
+/**
+ * Test Min, Max, Orientation, ValueDescription
+ */
+addAccessibleTask(
+  `<input type="number" value="11" id="number">`,
+  async (browser, accDoc) => {
+    let nextValue = 21;
+    let number = getNativeInterface(accDoc, "number");
+    is(
+      number.getAttributeValue("AXRole"),
+      "AXIncrementor",
+      "Correct AXIncrementor role"
+    );
+    is(number.getAttributeValue("AXValue"), 11, "Correct initial value");
+
+    ok(number.isAttributeSettable("AXValue"), "Range AXValue is settable.");
+
+    let evt = waitForMacEvent("AXValueChanged");
+    number.setAttributeValue("AXValue", nextValue);
+    await evt;
+    is(number.getAttributeValue("AXValue"), nextValue, "Correct updated value");
+  }
+);
+
+/**
+ * Verify that the value of a number input can be set directly
+ * Test input[type=number]
+ */
+addAccessibleTask(
+  `<div aria-valuetext="High" id="slider" aria-orientation="horizontal" role="slider" aria-valuenow="2" aria-valuemin="0" aria-valuemax="3"></div>`,
+  async (browser, accDoc) => {
+    let slider = getNativeInterface(accDoc, "slider");
+    is(
+      slider.getAttributeValue("AXValueDescription"),
+      "High",
+      "Correct value description"
+    );
+    is(
+      slider.getAttributeValue("AXOrientation"),
+      "AXHorizontalOrientation",
+      "Correct orientation"
+    );
+    is(slider.getAttributeValue("AXMinValue"), 0, "Correct min value");
+    is(slider.getAttributeValue("AXMaxValue"), 3, "Correct max value");
+
+    let evt = waitForMacEvent("AXValueChanged");
+    await invokeContentTask(browser, [], () => {
+      const s = content.document.getElementById("slider");
+      s.setAttribute("aria-valuetext", "Low");
+    });
+    await evt;
+    is(
+      slider.getAttributeValue("AXValueDescription"),
+      "Low",
+      "Correct value description"
+    );
+
+    evt = waitForEvent(EVENT_OBJECT_ATTRIBUTE_CHANGED, "slider");
+    await invokeContentTask(browser, [], () => {
+      const s = content.document.getElementById("slider");
+      s.setAttribute("aria-orientation", "vertical");
+      s.setAttribute("aria-valuemin", "-1");
+      s.setAttribute("aria-valuemax", "5");
+    });
+    await evt;
+    is(
+      slider.getAttributeValue("AXOrientation"),
+      "AXVerticalOrientation",
+      "Correct orientation"
+    );
+    is(slider.getAttributeValue("AXMinValue"), -1, "Correct min value");
+    is(slider.getAttributeValue("AXMaxValue"), 5, "Correct max value");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_required.js b/accessible/tests/browser/mac/browser_required.js
new file mode 100644
index 0000000000..2109d265ab
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_required.js
@@ -0,0 +1,175 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test required and aria-required attributes on checkboxes
+ * and radio buttons.
+ */
+addAccessibleTask(
+  `
+  <form>
+    <input type="checkbox" id="checkbox" required>
+   <br>
+    <input type="radio" id="radio" required>
+   <br>
+    <input type="checkbox" id="ariaCheckbox" aria-required="true">
+   <br>
+    <input type="radio" id="ariaRadio" aria-required="true">
+  </form>
+  `,
+  async (browser, accDoc) => {
+    // Check initial AXRequired values are correct
+    let radio = getNativeInterface(accDoc, "radio");
+    is(
+      radio.getAttributeValue("AXRequired"),
+      1,
+      "Correct required val for radio"
+    );
+
+    let ariaRadio = getNativeInterface(accDoc, "ariaRadio");
+    is(
+      ariaRadio.getAttributeValue("AXRequired"),
+      1,
+      "Correct required val for ariaRadio"
+    );
+
+    let checkbox = getNativeInterface(accDoc, "checkbox");
+    is(
+      checkbox.getAttributeValue("AXRequired"),
+      1,
+      "Correct required val for checkbox"
+    );
+
+    let ariaCheckbox = getNativeInterface(accDoc, "ariaCheckbox");
+    is(
+      ariaCheckbox.getAttributeValue("AXRequired"),
+      1,
+      "Correct required val for ariaCheckbox"
+    );
+
+    // Change aria-required, verify AXRequired is updated
+    let stateChanged = waitForEvent(EVENT_STATE_CHANGE, "ariaCheckbox");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("ariaCheckbox")
+        .setAttribute("aria-required", "false");
+    });
+    await stateChanged;
+
+    is(
+      ariaCheckbox.getAttributeValue("AXRequired"),
+      0,
+      "Correct required after false set for ariaCheckbox"
+    );
+
+    // Change aria-required, verify AXRequired is updated
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "ariaCheckbox");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("ariaCheckbox")
+        .setAttribute("aria-required", "true");
+    });
+    await stateChanged;
+
+    is(
+      ariaCheckbox.getAttributeValue("AXRequired"),
+      1,
+      "Correct required after true set for ariaCheckbox"
+    );
+
+    // Remove aria-required, verify AXRequired is updated
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "ariaCheckbox");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("ariaCheckbox")
+        .removeAttribute("aria-required");
+    });
+    await stateChanged;
+
+    is(
+      ariaCheckbox.getAttributeValue("AXRequired"),
+      0,
+      "Correct required after removal for ariaCheckbox"
+    );
+
+    // Change aria-required, verify AXRequired is updated
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "ariaRadio");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("ariaRadio")
+        .setAttribute("aria-required", "false");
+    });
+    await stateChanged;
+
+    is(
+      ariaRadio.getAttributeValue("AXRequired"),
+      0,
+      "Correct required after false set for ariaRadio"
+    );
+
+    // Change aria-required, verify AXRequired is updated
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "ariaRadio");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("ariaRadio")
+        .setAttribute("aria-required", "true");
+    });
+    await stateChanged;
+
+    is(
+      ariaRadio.getAttributeValue("AXRequired"),
+      1,
+      "Correct required after true set for ariaRadio"
+    );
+
+    // Remove aria-required, verify AXRequired is updated
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "ariaRadio");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("ariaRadio")
+        .removeAttribute("aria-required");
+    });
+    await stateChanged;
+
+    is(
+      ariaRadio.getAttributeValue("AXRequired"),
+      0,
+      "Correct required after removal for ariaRadio"
+    );
+
+    // Remove required, verify AXRequired is updated
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "checkbox");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("checkbox").removeAttribute("required");
+    });
+    await stateChanged;
+
+    is(
+      checkbox.getAttributeValue("AXRequired"),
+      0,
+      "Correct required after removal for checkbox"
+    );
+
+    stateChanged = waitForEvent(EVENT_STATE_CHANGE, "radio");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("radio").removeAttribute("required");
+    });
+    await stateChanged;
+
+    is(
+      checkbox.getAttributeValue("AXRequired"),
+      0,
+      "Correct required after removal for radio"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_rich_listbox.js b/accessible/tests/browser/mac/browser_rich_listbox.js
new file mode 100644
index 0000000000..97dd6785bb
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_rich_listbox.js
@@ -0,0 +1,73 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/attributes.js */
+loadScripts({ name: "attributes.js", dir: MOCHITESTS_DIR });
+
+addAccessibleTask(
+  "mac/doc_rich_listbox.xhtml",
+  async (browser, accDoc) => {
+    const categories = getNativeInterface(accDoc, "categories");
+    const categoriesChildren = categories.getAttributeValue("AXChildren");
+    is(categoriesChildren.length, 4, "Found listbox and 4 items");
+
+    const general = getNativeInterface(accDoc, "general");
+    is(
+      general.getAttributeValue("AXTitle"),
+      "general",
+      "general has appropriate title"
+    );
+    is(
+      categoriesChildren[0].getAttributeValue("AXTitle"),
+      general.getAttributeValue("AXTitle"),
+      "Found general listitem"
+    );
+    is(
+      general.getAttributeValue("AXEnabled"),
+      1,
+      "general is enabled, not dimmed"
+    );
+
+    const home = getNativeInterface(accDoc, "home");
+    is(home.getAttributeValue("AXTitle"), "home", "home has appropriate title");
+    is(
+      categoriesChildren[1].getAttributeValue("AXTitle"),
+      home.getAttributeValue("AXTitle"),
+      "Found home listitem"
+    );
+    is(home.getAttributeValue("AXEnabled"), 1, "Home is enabled, not dimmed");
+
+    const search = getNativeInterface(accDoc, "search");
+    is(
+      search.getAttributeValue("AXTitle"),
+      "search",
+      "search has appropriate title"
+    );
+    is(
+      categoriesChildren[2].getAttributeValue("AXTitle"),
+      search.getAttributeValue("AXTitle"),
+      "Found search listitem"
+    );
+    is(
+      search.getAttributeValue("AXEnabled"),
+      1,
+      "search is enabled, not dimmed"
+    );
+
+    const privacy = getNativeInterface(accDoc, "privacy");
+    is(
+      privacy.getAttributeValue("AXTitle"),
+      "privacy",
+      "privacy has appropriate title"
+    );
+    is(
+      categoriesChildren[3].getAttributeValue("AXTitle"),
+      privacy.getAttributeValue("AXTitle"),
+      "Found privacy listitem"
+    );
+  },
+  { topLevel: false, chrome: true }
+);
diff --git a/accessible/tests/browser/mac/browser_roles_elements.js b/accessible/tests/browser/mac/browser_roles_elements.js
new file mode 100644
index 0000000000..791598fed6
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_roles_elements.js
@@ -0,0 +1,334 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test different HTML elements for their roles and subroles
+ */
+function testRoleAndSubRole(accDoc, id, axRole, axSubRole, axRoleDescription) {
+  let el = getNativeInterface(accDoc, id);
+  if (axRole) {
+    is(
+      el.getAttributeValue("AXRole"),
+      axRole,
+      "AXRole for " + id + " is " + axRole
+    );
+  }
+  if (axSubRole) {
+    is(
+      el.getAttributeValue("AXSubrole"),
+      axSubRole,
+      "Subrole for " + id + " is " + axSubRole
+    );
+  }
+  if (axRoleDescription) {
+    is(
+      el.getAttributeValue("AXRoleDescription"),
+      axRoleDescription,
+      "Subrole for " + id + " is " + axRoleDescription
+    );
+  }
+}
+
+addAccessibleTask(
+  `
+  <!-- WAI-ARIA landmark roles -->
+  <div id="application" role="application"></div>
+  <div id="banner" role="banner"></div>
+  <div id="complementary" role="complementary"></div>
+  <div id="contentinfo" role="contentinfo"></div>
+  <div id="form" role="form"></div>
+  <div id="main" role="main"></div>
+  <div id="navigation" role="navigation"></div>
+  <div id="search" role="search"></div>
+  <div id="searchbox" role="searchbox"></div>
+
+  <!-- DPub landmarks -->
+  <div id="dPubNavigation" role="doc-index"></div>
+  <div id="dPubRegion" role="doc-introduction"></div>
+
+  <!-- Other WAI-ARIA widget roles -->
+  <div id="alert" role="alert"></div>
+  <div id="alertdialog" role="alertdialog"></div>
+  <div id="article" role="article"></div>
+  <div id="code" role="code"></div>
+  <div id="dialog" role="dialog"></div>
+  <div id="ariaDocument" role="document"></div>
+  <div id="log" role="log"></div>
+  <div id="marquee" role="marquee"></div>
+  <div id="ariaMath" role="math"></div>
+  <div id="note" role="note"></div>
+  <div id="ariaRegion" aria-label="region" role="region"></div>
+  <div id="ariaStatus" role="status"></div>
+  <div id="switch" role="switch"></div>
+  <div id="timer" role="timer"></div>
+  <div id="tooltip" role="tooltip"></div>
+  <input type="radio" role="menuitemradio" id="menuitemradio">
+  <input type="checkbox" role="menuitemcheckbox" id="menuitemcheckbox">
+  <input type="datetime-local" id="datetime">
+
+  <!-- text entries -->
+  <div id="textbox_multiline" role="textbox" aria-multiline="true"></div>
+  <div id="textbox_singleline" role="textbox" aria-multiline="false"></div>
+  <textarea id="textArea"></textarea>
+  <input id="textInput">
+
+  <!-- True HTML5 search box -->
+  <input type="search" id="htmlSearch" />
+
+  <!-- A button morphed into a toggle via ARIA -->
+  <button id="toggle" aria-pressed="false"></button>
+
+  <!-- A button with a 'banana' role description -->
+  <button id="banana" aria-roledescription="banana"></button>
+
+  <!-- Other elements -->
+  <del id="deletion">Deleted text</del>
+  <dl id="dl"><dt id="dt">term</dt><dd id="dd">definition</dd></dl>
+  <hr id="hr" />
+  <ins id="insertion">Inserted text</ins>
+  <meter id="meter" min="0" max="100" value="24">meter text here</meter>
+  <sub id="sub">sub text here</sub>
+  <sup id="sup">sup text here</sup>
+
+  <!-- Some SVG stuff -->
+  <svg xmlns="http://www.w3.org/2000/svg" version="1.1" id="svg"
+       xmlns:xlink="http://www.w3.org/1999/xlink">
+    <g id="g">
+      <title>g</title>
+    </g>
+    <rect width="300" height="100" id="rect"
+          style="fill:rgb(0,0,255);stroke-width:1;stroke:rgb(0,0,0)">
+      <title>rect</title>
+    </rect>
+    <circle cx="100" cy="50" r="40" stroke="black" id="circle"
+            stroke-width="2" fill="red">
+      <title>circle</title>
+    </circle>
+    <ellipse cx="300" cy="80" rx="100" ry="50" id="ellipse"
+             style="fill:yellow;stroke:purple;stroke-width:2">
+      <title>ellipse</title>
+    </ellipse>
+    <line x1="0" y1="0" x2="200" y2="200" id="line"
+          style="stroke:rgb(255,0,0);stroke-width:2">
+      <title>line</title>
+    </line>
+    <polygon points="200,10 250,190 160,210" id="polygon"
+             style="fill:lime;stroke:purple;stroke-width:1">
+      <title>polygon</title>
+    </polygon>
+    <polyline points="20,20 40,25 60,40 80,120 120,140 200,180" id="polyline"
+              style="fill:none;stroke:black;stroke-width:3" >
+      <title>polyline</title>
+    </polyline>
+    <path d="M150 0 L75 200 L225 200 Z" id="path">
+      <title>path</title>
+    </path>
+    <image x1="25" y1="80" width="50" height="20" id="image"
+           xlink:href="../moz.png">
+      <title>image</title>
+    </image>
+  </svg>`,
+  (browser, accDoc) => {
+    // WAI-ARIA landmark subroles, regardless of AXRole
+    testRoleAndSubRole(accDoc, "application", null, "AXLandmarkApplication");
+    testRoleAndSubRole(accDoc, "banner", null, "AXLandmarkBanner");
+    testRoleAndSubRole(
+      accDoc,
+      "complementary",
+      null,
+      "AXLandmarkComplementary"
+    );
+    testRoleAndSubRole(accDoc, "contentinfo", null, "AXLandmarkContentInfo");
+    testRoleAndSubRole(accDoc, "form", null, "AXLandmarkForm");
+    testRoleAndSubRole(accDoc, "main", null, "AXLandmarkMain");
+    testRoleAndSubRole(accDoc, "navigation", null, "AXLandmarkNavigation");
+    testRoleAndSubRole(accDoc, "search", null, "AXLandmarkSearch");
+    testRoleAndSubRole(accDoc, "searchbox", null, "AXSearchField");
+
+    // DPub roles map into two categories, sample one of each
+    testRoleAndSubRole(
+      accDoc,
+      "dPubNavigation",
+      "AXGroup",
+      "AXLandmarkNavigation"
+    );
+    testRoleAndSubRole(accDoc, "dPubRegion", "AXGroup", "AXLandmarkRegion");
+
+    // ARIA widget roles
+    testRoleAndSubRole(accDoc, "alert", null, "AXApplicationAlert");
+    testRoleAndSubRole(
+      accDoc,
+      "alertdialog",
+      "AXGroup",
+      "AXApplicationAlertDialog",
+      "alert dialog"
+    );
+    testRoleAndSubRole(accDoc, "article", null, "AXDocumentArticle");
+    testRoleAndSubRole(accDoc, "code", "AXGroup", "AXCodeStyleGroup");
+    testRoleAndSubRole(accDoc, "dialog", null, "AXApplicationDialog", "dialog");
+    testRoleAndSubRole(accDoc, "ariaDocument", null, "AXDocument");
+    testRoleAndSubRole(accDoc, "log", null, "AXApplicationLog");
+    testRoleAndSubRole(accDoc, "marquee", null, "AXApplicationMarquee");
+    testRoleAndSubRole(accDoc, "ariaMath", null, "AXDocumentMath");
+    testRoleAndSubRole(accDoc, "note", null, "AXDocumentNote");
+    testRoleAndSubRole(accDoc, "ariaRegion", null, "AXLandmarkRegion");
+    testRoleAndSubRole(accDoc, "ariaStatus", "AXGroup", "AXApplicationStatus");
+    testRoleAndSubRole(accDoc, "switch", "AXCheckBox", "AXSwitch");
+    testRoleAndSubRole(accDoc, "timer", null, "AXApplicationTimer");
+    testRoleAndSubRole(accDoc, "tooltip", "AXGroup", "AXUserInterfaceTooltip");
+    testRoleAndSubRole(accDoc, "menuitemradio", "AXMenuItem", null);
+    testRoleAndSubRole(accDoc, "menuitemcheckbox", "AXMenuItem", null);
+    testRoleAndSubRole(accDoc, "datetime", "AXGroup", null);
+    // XXX for datetime elements, we spoof the role via the title, since
+    // providing the correct role results in the internal elements being
+    // unreachable by VO
+    is(
+      getNativeInterface(accDoc, "datetime").getAttributeValue("AXTitle"),
+      "date field"
+    );
+
+    // Text boxes
+    testRoleAndSubRole(accDoc, "textbox_multiline", "AXTextArea");
+    testRoleAndSubRole(accDoc, "textbox_singleline", "AXTextField");
+    testRoleAndSubRole(accDoc, "textArea", "AXTextArea");
+    testRoleAndSubRole(accDoc, "textInput", "AXTextField");
+
+    // True HTML5 search field
+    testRoleAndSubRole(accDoc, "htmlSearch", "AXTextField", "AXSearchField");
+
+    // A button morphed into a toggle by ARIA
+    testRoleAndSubRole(accDoc, "toggle", "AXCheckBox", "AXToggle");
+
+    // A banana button
+    testRoleAndSubRole(accDoc, "banana", "AXButton", null, "banana");
+
+    // Other elements
+    testRoleAndSubRole(accDoc, "deletion", "AXGroup", "AXDeleteStyleGroup");
+    testRoleAndSubRole(accDoc, "dl", "AXList", "AXDescriptionList");
+    testRoleAndSubRole(accDoc, "dt", "AXGroup", "AXTerm");
+    testRoleAndSubRole(accDoc, "dd", "AXGroup", "AXDescription");
+    testRoleAndSubRole(accDoc, "hr", "AXSplitter", "AXContentSeparator");
+    testRoleAndSubRole(accDoc, "insertion", "AXGroup", "AXInsertStyleGroup");
+    testRoleAndSubRole(
+      accDoc,
+      "meter",
+      "AXLevelIndicator",
+      "AXMeter",
+      "level indicator"
+    );
+    testRoleAndSubRole(accDoc, "sub", "AXGroup", "AXSubscriptStyleGroup");
+    testRoleAndSubRole(accDoc, "sup", "AXGroup", "AXSuperscriptStyleGroup");
+
+    // Some SVG stuff
+    testRoleAndSubRole(accDoc, "svg", "AXImage");
+    testRoleAndSubRole(accDoc, "g", "AXGroup");
+    testRoleAndSubRole(accDoc, "rect", "AXImage");
+    testRoleAndSubRole(accDoc, "circle", "AXImage");
+    testRoleAndSubRole(accDoc, "ellipse", "AXImage");
+    testRoleAndSubRole(accDoc, "line", "AXImage");
+    testRoleAndSubRole(accDoc, "polygon", "AXImage");
+    testRoleAndSubRole(accDoc, "polyline", "AXImage");
+    testRoleAndSubRole(accDoc, "path", "AXImage");
+    testRoleAndSubRole(accDoc, "image", "AXImage");
+  }
+);
+
+addAccessibleTask(
+  `
+  <figure id="figure">
+    <img id="img" src="http://example.com/a11y/accessible/tests/mochitest/moz.png" alt="Logo">
+    <p>Non-image figure content</p>
+    <figcaption id="figcaption">Old Mozilla logo</figcaption>
+  </figure>`,
+  (browser, accDoc) => {
+    let figure = getNativeInterface(accDoc, "figure");
+    ok(!figure.getAttributeValue("AXTitle"), "Figure should not have a title");
+    is(
+      figure.getAttributeValue("AXDescription"),
+      "Old Mozilla logo",
+      "Correct figure label"
+    );
+    is(figure.getAttributeValue("AXRole"), "AXGroup", "Correct figure role");
+    is(
+      figure.getAttributeValue("AXRoleDescription"),
+      "figure",
+      "Correct figure role description"
+    );
+
+    let img = getNativeInterface(accDoc, "img");
+    ok(!img.getAttributeValue("AXTitle"), "img should not have a title");
+    is(img.getAttributeValue("AXDescription"), "Logo", "Correct img label");
+    is(img.getAttributeValue("AXRole"), "AXImage", "Correct img role");
+    is(
+      img.getAttributeValue("AXRoleDescription"),
+      "image",
+      "Correct img role description"
+    );
+
+    let figcaption = getNativeInterface(accDoc, "figcaption");
+    ok(
+      !figcaption.getAttributeValue("AXTitle"),
+      "figcaption should not have a title"
+    );
+    ok(
+      !figcaption.getAttributeValue("AXDescription"),
+      "figcaption should not have a label"
+    );
+    is(
+      figcaption.getAttributeValue("AXRole"),
+      "AXGroup",
+      "Correct figcaption role"
+    );
+    is(
+      figcaption.getAttributeValue("AXRoleDescription"),
+      "group",
+      "Correct figcaption role description"
+    );
+  }
+);
+
+addAccessibleTask(`<button>hello world</button>`, async (browser, accDoc) => {
+  const webArea = accDoc.nativeInterface.QueryInterface(
+    Ci.nsIAccessibleMacInterface
+  );
+
+  is(
+    webArea.getAttributeValue("AXRole"),
+    "AXWebArea",
+    "web area should be an AXWebArea"
+  );
+  ok(
+    !webArea.attributeNames.includes("AXSubrole"),
+    "AXWebArea should not have a subrole"
+  );
+
+  let roleChanged = waitForMacEvent("AXMozRoleChanged");
+  await SpecialPowers.spawn(browser, [], () => {
+    content.document.body.setAttribute("role", "application");
+  });
+  await roleChanged;
+
+  is(
+    webArea.getAttributeValue("AXRole"),
+    "AXWebArea",
+    "web area should retain AXWebArea role"
+  );
+  ok(
+    !webArea.attributeNames.includes("AXSubrole"),
+    "AXWebArea should not have a subrole"
+  );
+
+  let rootGroup = webArea.getAttributeValue("AXChildren")[0];
+  is(rootGroup.getAttributeValue("AXRole"), "AXGroup");
+  is(rootGroup.getAttributeValue("AXSubrole"), "AXLandmarkApplication");
+});
diff --git a/accessible/tests/browser/mac/browser_rootgroup.js b/accessible/tests/browser/mac/browser_rootgroup.js
new file mode 100644
index 0000000000..a8f4297d64
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_rootgroup.js
@@ -0,0 +1,246 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test document with no single group child
+ */
+addAccessibleTask(
+  `<p id="p1">hello</p><p>world</p>`,
+  async (browser, accDoc) => {
+    let doc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    let docChildren = doc.getAttributeValue("AXChildren");
+    is(docChildren.length, 1, "The document contains a root group");
+
+    let rootGroup = docChildren[0];
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+
+    is(
+      rootGroup.getAttributeValue("AXChildren").length,
+      2,
+      "Root group has two children"
+    );
+
+    // From bottom-up
+    let p1 = getNativeInterface(accDoc, "p1");
+    rootGroup = p1.getAttributeValue("AXParent");
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+  }
+);
+
+/**
+ * Test document with a top-level group
+ */
+addAccessibleTask(
+  `<div role="grouping" id="group"><p>hello</p><p>world</p></div>`,
+  async (browser, accDoc) => {
+    let doc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    let docChildren = doc.getAttributeValue("AXChildren");
+    is(docChildren.length, 1, "The document contains a root group");
+
+    let rootGroup = docChildren[0];
+    is(
+      rootGroup.getAttributeValue("AXDOMIdentifier"),
+      "group",
+      "Root group is a document element"
+    );
+
+    // Adding an 'application' role to the body should
+    // create a root group with an application subrole.
+    let evt = waitForMacEvent("AXMozRoleChanged");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.body.setAttribute("role", "application");
+    });
+    await evt;
+
+    is(
+      doc.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "doc still has web area role"
+    );
+    is(
+      doc.getAttributeValue("AXRoleDescription"),
+      "HTML Content",
+      "doc has correct role description"
+    );
+    ok(
+      !doc.attributeNames.includes("AXSubrole"),
+      "sub role not available on web area"
+    );
+
+    rootGroup = doc.getAttributeValue("AXChildren")[0];
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+    is(
+      rootGroup.getAttributeValue("AXRole"),
+      "AXGroup",
+      "root group has AXGroup role"
+    );
+    is(
+      rootGroup.getAttributeValue("AXSubrole"),
+      "AXLandmarkApplication",
+      "root group has application subrole"
+    );
+    is(
+      rootGroup.getAttributeValue("AXRoleDescription"),
+      "application",
+      "root group has application role description"
+    );
+  }
+);
+
+/**
+ * Test document with body[role=application] and a top-level group
+ */
+addAccessibleTask(
+  `<div role="grouping" id="group"><p>hello</p><p>world</p></div>`,
+  async (browser, accDoc) => {
+    let doc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    is(
+      doc.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "doc still has web area role"
+    );
+    is(
+      doc.getAttributeValue("AXRoleDescription"),
+      "HTML Content",
+      "doc has correct role description"
+    );
+    ok(
+      !doc.attributeNames.includes("AXSubrole"),
+      "sub role not available on web area"
+    );
+
+    let rootGroup = doc.getAttributeValue("AXChildren")[0];
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+    is(
+      rootGroup.getAttributeValue("AXRole"),
+      "AXGroup",
+      "root group has AXGroup role"
+    );
+    is(
+      rootGroup.getAttributeValue("AXSubrole"),
+      "AXLandmarkApplication",
+      "root group has application subrole"
+    );
+    is(
+      rootGroup.getAttributeValue("AXRoleDescription"),
+      "application",
+      "root group has application role description"
+    );
+  },
+  { contentDocBodyAttrs: { role: "application" } }
+);
+
+/**
+ * Test document with a single button
+ */
+addAccessibleTask(
+  `<button id="button">I am a button</button>`,
+  async (browser, accDoc) => {
+    let doc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    let docChildren = doc.getAttributeValue("AXChildren");
+    is(docChildren.length, 1, "The document contains a root group");
+
+    let rootGroup = docChildren[0];
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+
+    let rootGroupChildren = rootGroup.getAttributeValue("AXChildren");
+    is(rootGroupChildren.length, 1, "Root group has one children");
+
+    is(
+      rootGroupChildren[0].getAttributeValue("AXRole"),
+      "AXButton",
+      "Button is child of root group"
+    );
+
+    // From bottom-up
+    let button = getNativeInterface(accDoc, "button");
+    rootGroup = button.getAttributeValue("AXParent");
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+  }
+);
+
+/**
+ * Test document with dialog role and heading
+ */
+addAccessibleTask(
+  `<body role="dialog" aria-labelledby="h">
+    <h1 id="h">
+      We're building a richer search experience
+    </h1>
+  </body>`,
+  async (browser, accDoc) => {
+    let doc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    let docChildren = doc.getAttributeValue("AXChildren");
+    is(docChildren.length, 1, "The document contains a root group");
+
+    let rootGroup = docChildren[0];
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+
+    is(rootGroup.getAttributeValue("AXRole"), "AXGroup", "Inherits role");
+
+    is(
+      rootGroup.getAttributeValue("AXSubrole"),
+      "AXApplicationDialog",
+      "Inherits subrole"
+    );
+    let rootGroupChildren = rootGroup.getAttributeValue("AXChildren");
+    is(rootGroupChildren.length, 1, "Root group has one child");
+
+    is(
+      rootGroupChildren[0].getAttributeValue("AXRole"),
+      "AXHeading",
+      "Heading is child of root group"
+    );
+
+    // From bottom-up
+    let heading = getNativeInterface(accDoc, "h");
+    rootGroup = heading.getAttributeValue("AXParent");
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Parent is generated root group"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_rotor.js b/accessible/tests/browser/mac/browser_rotor.js
new file mode 100644
index 0000000000..3f13506757
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_rotor.js
@@ -0,0 +1,1752 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/states.js */
+loadScripts({ name: "states.js", dir: MOCHITESTS_DIR });
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+/**
+ * Test rotor with heading
+ */
+addAccessibleTask(
+  `<h1 id="hello">hello</h1><br><h2 id="world">world</h2><br>goodbye`,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXHeadingSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const headingCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(2, headingCount, "Found two headings");
+
+    const headings = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const hello = getNativeInterface(accDoc, "hello");
+    const world = getNativeInterface(accDoc, "world");
+    is(
+      hello.getAttributeValue("AXTitle"),
+      headings[0].getAttributeValue("AXTitle"),
+      "Found correct first heading"
+    );
+    is(
+      world.getAttributeValue("AXTitle"),
+      headings[1].getAttributeValue("AXTitle"),
+      "Found correct second heading"
+    );
+  }
+);
+
+/**
+ * Test rotor with heading and empty search text
+ */
+addAccessibleTask(
+  `<h1 id="hello">hello</h1><br><h2 id="world">world</h2><br>goodbye`,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXHeadingSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+      AXSearchText: "",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const headingCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(headingCount, 2, "Found two headings");
+
+    const headings = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const hello = getNativeInterface(accDoc, "hello");
+    const world = getNativeInterface(accDoc, "world");
+    is(
+      headings[0].getAttributeValue("AXTitle"),
+      hello.getAttributeValue("AXTitle"),
+      "Found correct first heading"
+    );
+    is(
+      headings[1].getAttributeValue("AXTitle"),
+      world.getAttributeValue("AXTitle"),
+      "Found correct second heading"
+    );
+  }
+);
+
+/**
+ * Test rotor with articles
+ */
+addAccessibleTask(
+  `<article id="google">
+  <h2>Google Chrome</h2>
+  <p>Google Chrome is a web browser developed by Google, released in 2008. Chrome is the world's most popular web browser today!</p>
+  </article>
+
+  <article id="moz">
+  <h2>Mozilla Firefox</h2>
+  <p>Mozilla Firefox is an open-source web browser developed by Mozilla. Firefox has been the second most popular web browser since January, 2018.</p>
+  </article>
+
+  <article id="microsoft">
+  <h2>Microsoft Edge</h2>
+  <p>Microsoft Edge is a web browser developed by Microsoft, released in 2015. Microsoft Edge replaced Internet Explorer.</p>
+  </article> `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXArticleSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const articleCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(3, articleCount, "Found three articles");
+
+    const articles = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const google = getNativeInterface(accDoc, "google");
+    const moz = getNativeInterface(accDoc, "moz");
+    const microsoft = getNativeInterface(accDoc, "microsoft");
+
+    is(
+      google.getAttributeValue("AXTitle"),
+      articles[0].getAttributeValue("AXTitle"),
+      "Found correct first article"
+    );
+    is(
+      moz.getAttributeValue("AXTitle"),
+      articles[1].getAttributeValue("AXTitle"),
+      "Found correct second article"
+    );
+    is(
+      microsoft.getAttributeValue("AXTitle"),
+      articles[2].getAttributeValue("AXTitle"),
+      "Found correct third article"
+    );
+  }
+);
+
+/**
+ * Test rotor with tables
+ */
+addAccessibleTask(
+  `
+  <table id="shapes">
+    <tr>
+      <th>Shape</th>
+      <th>Color</th>
+      <th>Do I like it?</th>
+    </tr>
+    <tr>
+      <td>Triangle</td>
+      <td>Green</td>
+      <td>No</td>
+    </tr>
+    <tr>
+      <td>Square</td>
+      <td>Red</td>
+      <td>Yes</td>
+    </tr>
+  </table>
+  <br>
+  <table id="food">
+    <tr>
+      <th>Grocery Item</th>
+      <th>Quantity</th>
+    </tr>
+    <tr>
+      <td>Onions</td>
+      <td>2</td>
+    </tr>
+    <tr>
+      <td>Yogurt</td>
+      <td>1</td>
+    </tr>
+    <tr>
+      <td>Spinach</td>
+      <td>1</td>
+    </tr>
+    <tr>
+      <td>Cherries</td>
+      <td>12</td>
+    </tr>
+    <tr>
+      <td>Carrots</td>
+      <td>5</td>
+    </tr>
+  </table>
+  <br>
+  <div role="table" id="ariaTable">
+    <div role="row">
+      <div role="cell">
+        I am a tiny aria table
+      </div>
+    </div>
+  </div>
+  <br>
+  <table role="grid" id="grid">
+    <tr>
+      <th>A</th>
+      <th>B</th>
+      <th>C</th>
+      <th>D</th>
+      <th>E</th>
+    </tr>
+    <tr>
+      <th>F</th>
+      <th>G</th>
+      <th>H</th>
+      <th>I</th>
+      <th>J</th>
+    </tr>
+  </table>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXTableSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const tableCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(4, tableCount, "Found four tables");
+
+    const tables = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const shapes = getNativeInterface(accDoc, "shapes");
+    const food = getNativeInterface(accDoc, "food");
+    const ariaTable = getNativeInterface(accDoc, "ariaTable");
+    const grid = getNativeInterface(accDoc, "grid");
+
+    is(
+      shapes.getAttributeValue("AXColumnCount"),
+      tables[0].getAttributeValue("AXColumnCount"),
+      "Found correct first table"
+    );
+    is(
+      food.getAttributeValue("AXColumnCount"),
+      tables[1].getAttributeValue("AXColumnCount"),
+      "Found correct second table"
+    );
+    is(
+      ariaTable.getAttributeValue("AXColumnCount"),
+      tables[2].getAttributeValue("AXColumnCount"),
+      "Found correct third table"
+    );
+    is(
+      grid.getAttributeValue("AXColumnCount"),
+      tables[3].getAttributeValue("AXColumnCount"),
+      "Found correct fourth table"
+    );
+  }
+);
+
+/**
+ * Test rotor with landmarks
+ */
+addAccessibleTask(
+  `
+  <header id="header">
+    <h1>This is a heading within a header</h1>
+  </header>
+
+  <nav id="nav">
+    <a href="example.com">I am a link in a nav</a>
+  </nav>
+
+  <main id="main">
+    I am some text in a main element
+  </main>
+
+  <footer id="footer">
+    <h2>Heading in footer</h2>
+  </footer>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXLandmarkSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const landmarkCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(4, landmarkCount, "Found four landmarks");
+
+    const landmarks = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const header = getNativeInterface(accDoc, "header");
+    const nav = getNativeInterface(accDoc, "nav");
+    const main = getNativeInterface(accDoc, "main");
+    const footer = getNativeInterface(accDoc, "footer");
+
+    is(
+      header.getAttributeValue("AXSubrole"),
+      landmarks[0].getAttributeValue("AXSubrole"),
+      "Found correct first landmark"
+    );
+    is(
+      nav.getAttributeValue("AXSubrole"),
+      landmarks[1].getAttributeValue("AXSubrole"),
+      "Found correct second landmark"
+    );
+    is(
+      main.getAttributeValue("AXSubrole"),
+      landmarks[2].getAttributeValue("AXSubrole"),
+      "Found correct third landmark"
+    );
+    is(
+      footer.getAttributeValue("AXSubrole"),
+      landmarks[3].getAttributeValue("AXSubrole"),
+      "Found correct fourth landmark"
+    );
+  }
+);
+
+/**
+ * Test rotor with aria landmarks
+ */
+addAccessibleTask(
+  `
+  <div id="banner" role="banner">
+    <h1>This is a heading within a banner</h1>
+  </div>
+
+  <div id="nav" role="navigation">
+    <a href="example.com">I am a link in a nav</a>
+  </div>
+
+  <div id="main" role="main">
+    I am some text in a main element
+  </div>
+
+  <div id="contentinfo" role="contentinfo">
+    <h2>Heading in contentinfo</h2>
+  </div>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXLandmarkSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const landmarkCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(4, landmarkCount, "Found four landmarks");
+
+    const landmarks = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const banner = getNativeInterface(accDoc, "banner");
+    const nav = getNativeInterface(accDoc, "nav");
+    const main = getNativeInterface(accDoc, "main");
+    const contentinfo = getNativeInterface(accDoc, "contentinfo");
+
+    is(
+      banner.getAttributeValue("AXSubrole"),
+      landmarks[0].getAttributeValue("AXSubrole"),
+      "Found correct first landmark"
+    );
+    is(
+      nav.getAttributeValue("AXSubrole"),
+      landmarks[1].getAttributeValue("AXSubrole"),
+      "Found correct second landmark"
+    );
+    is(
+      main.getAttributeValue("AXSubrole"),
+      landmarks[2].getAttributeValue("AXSubrole"),
+      "Found correct third landmark"
+    );
+    is(
+      contentinfo.getAttributeValue("AXSubrole"),
+      landmarks[3].getAttributeValue("AXSubrole"),
+      "Found correct fourth landmark"
+    );
+  }
+);
+
+/**
+ * Test rotor with buttons
+ */
+addAccessibleTask(
+  `
+  <button id="button">hello world</button><br>
+
+  <input type="button" value="another kinda button" id="input"><br>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXButtonSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const buttonCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(2, buttonCount, "Found two buttons");
+
+    const buttons = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const button = getNativeInterface(accDoc, "button");
+    const input = getNativeInterface(accDoc, "input");
+
+    is(
+      button.getAttributeValue("AXRole"),
+      buttons[0].getAttributeValue("AXRole"),
+      "Found correct button"
+    );
+    is(
+      input.getAttributeValue("AXRole"),
+      buttons[1].getAttributeValue("AXRole"),
+      "Found correct input button"
+    );
+  }
+);
+
+/**
+ * Test rotor with heading
+ */
+addAccessibleTask(
+  `<h1 id="hello">hello</h1><br><h2 id="world">world</h2><br>goodbye`,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXHeadingSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const headingCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(2, headingCount, "Found two headings");
+
+    const headings = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const hello = getNativeInterface(accDoc, "hello");
+    const world = getNativeInterface(accDoc, "world");
+    is(
+      hello.getAttributeValue("AXTitle"),
+      headings[0].getAttributeValue("AXTitle"),
+      "Found correct first heading"
+    );
+    is(
+      world.getAttributeValue("AXTitle"),
+      headings[1].getAttributeValue("AXTitle"),
+      "Found correct second heading"
+    );
+  }
+);
+
+/**
+ * Test rotor with buttons
+ */
+addAccessibleTask(
+  `
+  <form>
+    <h2>input[type=button]</h2>
+    <input type="button" value="apply" id="button1">
+
+    <h2>input[type=submit]</h2>
+    <input type="submit" value="submit now" id="submit">
+
+    <h2>input[type=image]</h2>
+    <input type="image" src="sample.jpg" alt="submit image" id="image">
+
+    <h2>input[type=reset]</h2>
+    <input type="reset" value="reset now" id="reset">
+
+    <h2>button element</h2>
+    <button id="button2">Submit button</button>
+  </form>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXControlSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const controlsCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(5, controlsCount, "Found 5 controls");
+
+    const controls = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const button1 = getNativeInterface(accDoc, "button1");
+    const submit = getNativeInterface(accDoc, "submit");
+    const image = getNativeInterface(accDoc, "image");
+    const reset = getNativeInterface(accDoc, "reset");
+    const button2 = getNativeInterface(accDoc, "button2");
+
+    is(
+      button1.getAttributeValue("AXTitle"),
+      controls[0].getAttributeValue("AXTitle"),
+      "Found correct first control"
+    );
+    is(
+      submit.getAttributeValue("AXTitle"),
+      controls[1].getAttributeValue("AXTitle"),
+      "Found correct second control"
+    );
+    is(
+      image.getAttributeValue("AXTitle"),
+      controls[2].getAttributeValue("AXTitle"),
+      "Found correct third control"
+    );
+    is(
+      reset.getAttributeValue("AXTitle"),
+      controls[3].getAttributeValue("AXTitle"),
+      "Found correct third control"
+    );
+    is(
+      button2.getAttributeValue("AXTitle"),
+      controls[4].getAttributeValue("AXTitle"),
+      "Found correct third control"
+    );
+  }
+);
+
+/**
+ * Test rotor with inputs
+ */
+addAccessibleTask(
+  `
+  <input type="text" value="I'm a text field." id="text"><br>
+  <input type="text" value="me too" id="implText"><br>
+  <textarea id="textarea">this is some text in a text area</textarea><br>
+  <input type="tel" value="0000000000" id="tel"><br>
+  <input type="url" value="https://example.com" id="url"><br>
+  <input type="email" value="hi@example.com" id="email"><br>
+  <input type="password" value="blah" id="password"><br>
+  <input type="month" value="2020-01" id="month"><br>
+  <input type="week" value="2020-W01" id="week"><br>
+  <input type="number" value="12" id="number"><br>
+  <input type="range" value="12" min="0" max="20" id="range"><br>
+  <input type="date" value="2020-01-01" id="date"><br>
+  <input type="time" value="10:10:10" id="time"><br>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXControlSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const controlsCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(13, controlsCount, "Found 13 controls");
+    // the extra controls here come from our time control
+    // we can't filter out its internal buttons/incrementors
+    // like we do with the date entry because the time entry
+    // doesn't have its own specific role -- its just a grouping.
+
+    const controls = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const text = getNativeInterface(accDoc, "text");
+    const implText = getNativeInterface(accDoc, "implText");
+    const textarea = getNativeInterface(accDoc, "textarea");
+    const tel = getNativeInterface(accDoc, "tel");
+    const url = getNativeInterface(accDoc, "url");
+    const email = getNativeInterface(accDoc, "email");
+    const password = getNativeInterface(accDoc, "password");
+    const month = getNativeInterface(accDoc, "month");
+    const week = getNativeInterface(accDoc, "week");
+    const number = getNativeInterface(accDoc, "number");
+    const range = getNativeInterface(accDoc, "range");
+
+    const toCheck = [
+      text,
+      implText,
+      textarea,
+      tel,
+      url,
+      email,
+      password,
+      month,
+      week,
+      number,
+      range,
+    ];
+
+    for (let i = 0; i < toCheck.length; i++) {
+      is(
+        toCheck[i].getAttributeValue("AXValue"),
+        controls[i].getAttributeValue("AXValue"),
+        "Found correct input control"
+      );
+    }
+
+    const date = getNativeInterface(accDoc, "date");
+    const time = getNativeInterface(accDoc, "time");
+
+    is(
+      date.getAttributeValue("AXRole"),
+      controls[11].getAttributeValue("AXRole"),
+      "Found corrent date editor"
+    );
+
+    is(
+      time.getAttributeValue("AXRole"),
+      controls[12].getAttributeValue("AXRole"),
+      "Found corrent time editor"
+    );
+  }
+);
+
+/**
+ * Test rotor with groupings
+ */
+addAccessibleTask(
+  `
+  <fieldset>
+    <legend>Radios</legend>
+    <div role="radiogroup" id="radios">
+      <input id="radio1" type="radio" name="g1" checked="checked"> Radio 1
+      <input id="radio2" type="radio" name="g1"> Radio 2
+    </div>
+  </fieldset>
+
+  <fieldset id="checkboxes">
+    <legend>Checkboxes</legend>
+      <input id="checkbox1" type="checkbox" name="g2"> Checkbox 1
+      <input id="checkbox2" type="checkbox" name="g2" checked="checked">Checkbox 2
+  </fieldset>
+
+  <fieldset id="switches">
+    <legend>Switches</legend>
+      <input id="switch1" name="g3" role="switch" type="checkbox">Switch 1
+      <input checked="checked" id="switch2" name="g3" role="switch" type="checkbox">Switch 2
+  </fieldset>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXControlSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const controlsCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(9, controlsCount, "Found 9 controls");
+
+    const controls = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const radios = getNativeInterface(accDoc, "radios");
+    const radio1 = getNativeInterface(accDoc, "radio1");
+    const radio2 = getNativeInterface(accDoc, "radio2");
+
+    is(
+      radios.getAttributeValue("AXRole"),
+      controls[0].getAttributeValue("AXRole"),
+      "Found correct group of radios"
+    );
+    is(
+      radio1.getAttributeValue("AXRole"),
+      controls[1].getAttributeValue("AXRole"),
+      "Found correct radio 1"
+    );
+    is(
+      radio2.getAttributeValue("AXRole"),
+      controls[2].getAttributeValue("AXRole"),
+      "Found correct radio 2"
+    );
+
+    const checkboxes = getNativeInterface(accDoc, "checkboxes");
+    const checkbox1 = getNativeInterface(accDoc, "checkbox1");
+    const checkbox2 = getNativeInterface(accDoc, "checkbox2");
+
+    is(
+      checkboxes.getAttributeValue("AXRole"),
+      controls[3].getAttributeValue("AXRole"),
+      "Found correct group of checkboxes"
+    );
+    is(
+      checkbox1.getAttributeValue("AXRole"),
+      controls[4].getAttributeValue("AXRole"),
+      "Found correct checkbox 1"
+    );
+    is(
+      checkbox2.getAttributeValue("AXRole"),
+      controls[5].getAttributeValue("AXRole"),
+      "Found correct checkbox 2"
+    );
+
+    const switches = getNativeInterface(accDoc, "switches");
+    const switch1 = getNativeInterface(accDoc, "switch1");
+    const switch2 = getNativeInterface(accDoc, "switch2");
+
+    is(
+      switches.getAttributeValue("AXRole"),
+      controls[6].getAttributeValue("AXRole"),
+      "Found correct group of switches"
+    );
+    is(
+      switch1.getAttributeValue("AXRole"),
+      controls[7].getAttributeValue("AXRole"),
+      "Found correct switch 1"
+    );
+    is(
+      switch2.getAttributeValue("AXRole"),
+      controls[8].getAttributeValue("AXRole"),
+      "Found correct switch 2"
+    );
+  }
+);
+
+/**
+ * Test rotor with misc controls
+ */
+addAccessibleTask(
+  `
+  <input role="spinbutton" id="spinbutton" type="number" value="25">
+
+  <details id="details">
+    <summary>Hello</summary>
+    world
+  </details>
+
+  <ul role="tree" id="tree">
+    <li role="treeitem">item1</li>
+    <li role="treeitem">item1</li>
+  </ul>
+
+  <a id="buttonMenu" role="button">Click Me</a>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXControlSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const controlsCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(4, controlsCount, "Found 4 controls");
+
+    const controls = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const spin = getNativeInterface(accDoc, "spinbutton");
+    const details = getNativeInterface(accDoc, "details");
+    const tree = getNativeInterface(accDoc, "tree");
+    const buttonMenu = getNativeInterface(accDoc, "buttonMenu");
+
+    is(
+      spin.getAttributeValue("AXRole"),
+      controls[0].getAttributeValue("AXRole"),
+      "Found correct spinbutton"
+    );
+    is(
+      details.getAttributeValue("AXRole"),
+      controls[1].getAttributeValue("AXRole"),
+      "Found correct details element"
+    );
+    is(
+      tree.getAttributeValue("AXRole"),
+      controls[2].getAttributeValue("AXRole"),
+      "Found correct tree"
+    );
+    is(
+      buttonMenu.getAttributeValue("AXRole"),
+      controls[3].getAttributeValue("AXRole"),
+      "Found correct button menu"
+    );
+  }
+);
+
+/**
+ * Test rotor with links
+ */
+addAccessibleTask(
+  `
+  <a href="" id="empty">empty link</a>
+  <a href="http://www.example.com/" id="href">Example link</a>
+  <a id="noHref">link without href</a>
+  `,
+  async (browser, accDoc) => {
+    let searchPred = {
+      AXSearchKey: "AXLinkSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    let linkCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(2, linkCount, "Found two links");
+
+    let links = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    const empty = getNativeInterface(accDoc, "empty");
+    const href = getNativeInterface(accDoc, "href");
+
+    is(
+      empty.getAttributeValue("AXTitle"),
+      links[0].getAttributeValue("AXTitle"),
+      "Found correct first link"
+    );
+    is(
+      href.getAttributeValue("AXTitle"),
+      links[1].getAttributeValue("AXTitle"),
+      "Found correct second link"
+    );
+
+    // unvisited links
+
+    searchPred = {
+      AXSearchKey: "AXUnvisitedLinkSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    linkCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, linkCount, "Found two links");
+
+    links = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(
+      empty.getAttributeValue("AXTitle"),
+      links[0].getAttributeValue("AXTitle"),
+      "Found correct first link"
+    );
+    is(
+      href.getAttributeValue("AXTitle"),
+      links[1].getAttributeValue("AXTitle"),
+      "Found correct second link"
+    );
+
+    // visited links
+
+    let stateChanged = waitForEvent(EVENT_STATE_CHANGE, "href");
+
+    // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+    await PlacesTestUtils.addVisits(["http://www.example.com/"]);
+
+    await stateChanged;
+
+    searchPred = {
+      AXSearchKey: "AXVisitedLinkSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    linkCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(1, linkCount, "Found one link");
+
+    links = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(
+      href.getAttributeValue("AXTitle"),
+      links[0].getAttributeValue("AXTitle"),
+      "Found correct visited link"
+    );
+
+    // Ensure history is cleared before running again
+    await PlacesUtils.history.clear();
+  }
+);
+
+/*
+ * Test AXAnyTypeSearchKey with root group
+ */
+addAccessibleTask(
+  `<h1 id="hello">hello</h1><br><h2 id="world">world</h2><br>goodbye`,
+  (browser, accDoc) => {
+    let searchPred = {
+      AXSearchKey: "AXAnyTypeSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: 1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    let results = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(results.length, 1, "One result for root group");
+    is(
+      results[0].getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+
+    searchPred.AXStartElement = results[0];
+    results = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(results.length, 0, "No more results past root group");
+
+    searchPred.AXDirection = "AXDirectionPrevious";
+    results = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(
+      results.length,
+      0,
+      "Searching backwards from root group should yield no results"
+    );
+
+    const rootGroup = webArea.getAttributeValue("AXChildren")[0];
+    is(
+      rootGroup.getAttributeValue("AXIdentifier"),
+      "root-group",
+      "Is generated root group"
+    );
+
+    searchPred = {
+      AXSearchKey: "AXAnyTypeSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: 1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    results = rootGroup.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(
+      results[0].getAttributeValue("AXRole"),
+      "AXHeading",
+      "Is first heading child"
+    );
+  }
+);
+
+/**
+ * Test rotor with checkboxes
+ */
+addAccessibleTask(
+  `
+  <fieldset id="checkboxes">
+    <legend>Checkboxes</legend>
+      <input id="checkbox1" type="checkbox" name="g2"> Checkbox 1
+      <input id="checkbox2" type="checkbox" name="g2" checked="checked">Checkbox 2
+      <div id="checkbox3" role="checkbox">Checkbox 3</div>
+      <div id="checkbox4" role="checkbox" aria-checked="true">Checkbox 4</div>
+  </fieldset>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXCheckBoxSearchKey",
+      AXImmediateDescendantsOnly: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const checkboxCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(4, checkboxCount, "Found 4 checkboxes");
+
+    const checkboxes = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const checkbox1 = getNativeInterface(accDoc, "checkbox1");
+    const checkbox2 = getNativeInterface(accDoc, "checkbox2");
+    const checkbox3 = getNativeInterface(accDoc, "checkbox3");
+    const checkbox4 = getNativeInterface(accDoc, "checkbox4");
+
+    is(
+      checkbox1.getAttributeValue("AXValue"),
+      checkboxes[0].getAttributeValue("AXValue"),
+      "Found correct checkbox 1"
+    );
+    is(
+      checkbox2.getAttributeValue("AXValue"),
+      checkboxes[1].getAttributeValue("AXValue"),
+      "Found correct checkbox 2"
+    );
+    is(
+      checkbox3.getAttributeValue("AXValue"),
+      checkboxes[2].getAttributeValue("AXValue"),
+      "Found correct checkbox 3"
+    );
+    is(
+      checkbox4.getAttributeValue("AXValue"),
+      checkboxes[3].getAttributeValue("AXValue"),
+      "Found correct checkbox 4"
+    );
+  }
+);
+
+/**
+ * Test rotor with radiogroups
+ */
+addAccessibleTask(
+  `
+  <div role="radiogroup" id="radios" aria-labelledby="desc">
+    <h1 id="desc">some radio buttons</h1>
+    <div id="radio1" role="radio"> Radio 1</div>
+    <div id="radio2" role="radio"> Radio 2</div>
+  </div>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXRadioGroupSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const radiogroupCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(1, radiogroupCount, "Found 1 radio group");
+
+    const controls = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const radios = getNativeInterface(accDoc, "radios");
+
+    is(
+      radios.getAttributeValue("AXDescription"),
+      controls[0].getAttributeValue("AXDescription"),
+      "Found correct group of radios"
+    );
+  }
+);
+
+/*
+ * Test rotor with inputs
+ */
+addAccessibleTask(
+  `
+  <input type="text" value="I'm a text field." id="text"><br>
+  <input type="text" value="me too" id="implText"><br>
+  <textarea id="textarea">this is some text in a text area</textarea><br>
+  <input type="tel" value="0000000000" id="tel"><br>
+  <input type="url" value="https://example.com" id="url"><br>
+  <input type="email" value="hi@example.com" id="email"><br>
+  <input type="password" value="blah" id="password"><br>
+  <input type="month" value="2020-01" id="month"><br>
+  <input type="week" value="2020-W01" id="week"><br>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXTextFieldSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const textfieldCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(9, textfieldCount, "Found 9 fields");
+
+    const fields = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const text = getNativeInterface(accDoc, "text");
+    const implText = getNativeInterface(accDoc, "implText");
+    const textarea = getNativeInterface(accDoc, "textarea");
+    const tel = getNativeInterface(accDoc, "tel");
+    const url = getNativeInterface(accDoc, "url");
+    const email = getNativeInterface(accDoc, "email");
+    const password = getNativeInterface(accDoc, "password");
+    const month = getNativeInterface(accDoc, "month");
+    const week = getNativeInterface(accDoc, "week");
+
+    const toCheck = [
+      text,
+      implText,
+      textarea,
+      tel,
+      url,
+      email,
+      password,
+      month,
+      week,
+    ];
+
+    for (let i = 0; i < toCheck.length; i++) {
+      is(
+        toCheck[i].getAttributeValue("AXValue"),
+        fields[i].getAttributeValue("AXValue"),
+        "Found correct input control"
+      );
+    }
+  }
+);
+
+/**
+ * Test rotor with static text
+ */
+addAccessibleTask(
+  `
+  <h1>Hello I am a heading</h1>
+  This is some regular text.<p>this is some paragraph text</p><br>
+  This is a list:<ul>
+    <li>List item one</li>
+    <li>List item two</li>
+  </ul>
+
+  <a href="http://example.com">This is a link</a>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXStaticTextSearchKey",
+      AXImmediateDescendants: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const textCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(7, textCount, "Found 7 pieces of text");
+
+    const text = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(
+      "Hello I am a heading",
+      text[0].getAttributeValue("AXValue"),
+      "Found correct text node for heading"
+    );
+    is(
+      "This is some regular text.",
+      text[1].getAttributeValue("AXValue"),
+      "Found correct text node"
+    );
+    is(
+      "this is some paragraph text",
+      text[2].getAttributeValue("AXValue"),
+      "Found correct text node for paragraph"
+    );
+    is(
+      "This is a list:",
+      text[3].getAttributeValue("AXValue"),
+      "Found correct text node for pre-list text node"
+    );
+    is(
+      "List item one",
+      text[4].getAttributeValue("AXValue"),
+      "Found correct text node for list item one"
+    );
+    is(
+      "List item two",
+      text[5].getAttributeValue("AXValue"),
+      "Found correct text node for list item two"
+    );
+    is(
+      "This is a link",
+      text[6].getAttributeValue("AXValue"),
+      "Found correct text node for link"
+    );
+  }
+);
+
+/**
+ * Test rotor with lists
+ */
+addAccessibleTask(
+  `
+  <ul id="unordered">
+    <li>hello</li>
+    <li>world</li>
+  </ul>
+
+  <ol id="ordered">
+    <li>item one</li>
+    <li>item two</li>
+  </ol>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXListSearchKey",
+      AXImmediateDescendants: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const listCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(2, listCount, "Found 2 lists");
+
+    const lists = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    const ordered = getNativeInterface(accDoc, "ordered");
+    const unordered = getNativeInterface(accDoc, "unordered");
+
+    is(
+      unordered.getAttributeValue("AXChildren")[0].getAttributeValue("AXTitle"),
+      lists[0].getAttributeValue("AXChildren")[0].getAttributeValue("AXTitle"),
+      "Found correct unordered list"
+    );
+    is(
+      ordered.getAttributeValue("AXChildren")[0].getAttributeValue("AXTitle"),
+      lists[1].getAttributeValue("AXChildren")[0].getAttributeValue("AXTitle"),
+      "Found correct ordered list"
+    );
+  }
+);
+
+/*
+ * Test rotor with images
+ */
+addAccessibleTask(
+  `
+  <img id="img1" alt="image one" src="http://example.com/a11y/accessible/tests/mochitest/moz.png"><br>
+  <a href="http://example.com">
+    <img id="img2" alt="image two" src="http://example.com/a11y/accessible/tests/mochitest/moz.png">
+  </a>
+  <img src="" id="img3">
+  `,
+  (browser, accDoc) => {
+    let searchPred = {
+      AXSearchKey: "AXImageSearchKey",
+      AXImmediateDescendantsOnly: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    let images = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(images.length, 3, "Found three images");
+
+    const img1 = getNativeInterface(accDoc, "img1");
+    const img2 = getNativeInterface(accDoc, "img2");
+    const img3 = getNativeInterface(accDoc, "img3");
+
+    is(
+      img1.getAttributeValue("AXDescription"),
+      images[0].getAttributeValue("AXDescription"),
+      "Found correct image"
+    );
+
+    is(
+      img2.getAttributeValue("AXDescription"),
+      images[1].getAttributeValue("AXDescription"),
+      "Found correct image"
+    );
+
+    is(
+      img3.getAttributeValue("AXDescription"),
+      images[2].getAttributeValue("AXDescription"),
+      "Found correct image"
+    );
+  }
+);
+
+/**
+ * Test rotor with frames
+ */
+addAccessibleTask(
+  `
+  <iframe id="frame1" src="data:text/html,<h1>hello</h1>world"></iframe>
+  <iframe id="frame2" src="data:text/html,<iframe id='frame3' src='data:text/html,<h1>goodbye</h1>'>"></iframe>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXFrameSearchKey",
+      AXImmediateDescendantsOnly: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const frameCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(3, frameCount, "Found 3 frames");
+  }
+);
+
+/**
+ * Test rotor with static text
+ */
+addAccessibleTask(
+  `
+  <h1>Hello I am a heading</h1>
+  This is some regular text.<p>this is some paragraph text</p><br>
+  This is a list:<ul>
+    <li>List item one</li>
+    <li>List item two</li>
+  </ul>
+
+  <a href="http://example.com">This is a link</a>
+  `,
+  async (browser, accDoc) => {
+    const searchPred = {
+      AXSearchKey: "AXStaticTextSearchKey",
+      AXImmediateDescendants: 0,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const textCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(7, textCount, "Found 7 pieces of text");
+
+    const text = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    is(
+      "Hello I am a heading",
+      text[0].getAttributeValue("AXValue"),
+      "Found correct text node for heading"
+    );
+    is(
+      "This is some regular text.",
+      text[1].getAttributeValue("AXValue"),
+      "Found correct text node"
+    );
+    is(
+      "this is some paragraph text",
+      text[2].getAttributeValue("AXValue"),
+      "Found correct text node for paragraph"
+    );
+    is(
+      "This is a list:",
+      text[3].getAttributeValue("AXValue"),
+      "Found correct text node for pre-list text node"
+    );
+    is(
+      "List item one",
+      text[4].getAttributeValue("AXValue"),
+      "Found correct text node for list item one"
+    );
+    is(
+      "List item two",
+      text[5].getAttributeValue("AXValue"),
+      "Found correct text node for list item two"
+    );
+    is(
+      "This is a link",
+      text[6].getAttributeValue("AXValue"),
+      "Found correct text node for link"
+    );
+  }
+);
+
+/**
+ * Test search with non-webarea root
+ */
+addAccessibleTask(
+  `
+  <div id="searchroot"><p id="p1">hello</p><p id="p2">world</p></div>
+  <div><p>goodybe</p></div>
+  `,
+  async (browser, accDoc) => {
+    let searchPred = {
+      AXSearchKey: "AXAnyTypeSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+    };
+
+    const searchRoot = getNativeInterface(accDoc, "searchroot");
+    const resultCount = searchRoot.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(resultCount, 2, "Found 2 items");
+
+    const p1 = getNativeInterface(accDoc, "p1");
+    searchPred = {
+      AXSearchKey: "AXAnyTypeSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+      AXStartElement: p1,
+    };
+
+    let results = searchRoot.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    Assert.deepEqual(
+      results.map(r => r.getAttributeValue("AXDOMIdentifier")),
+      ["p2"],
+      "Result is next group sibling"
+    );
+
+    searchPred = {
+      AXSearchKey: "AXAnyTypeSearchKey",
+      AXImmediateDescendantsOnly: 1,
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionPrevious",
+    };
+
+    results = searchRoot.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    Assert.deepEqual(
+      results.map(r => r.getAttributeValue("AXDOMIdentifier")),
+      ["p2", "p1"],
+      "A reverse search should return groups in reverse"
+    );
+  }
+);
+
+/**
+ * Test search text
+ */
+addAccessibleTask(
+  `
+  <p>It's about the future, isn't it?</p>
+  <p>Okay, alright, Saturday is good, Saturday's good, I could spend a week in 1955.</p>
+  <ul>
+    <li>I could hang out, you could show me around.</li>
+    <li>There's that word again, heavy.</li>
+  </ul>
+  `,
+  async (browser, f, accDoc) => {
+    let searchPred = {
+      AXSearchKey: "AXAnyTypeSearchKey",
+      AXResultsLimit: -1,
+      AXDirection: "AXDirectionNext",
+      AXSearchText: "could",
+    };
+
+    const webArea = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    is(
+      webArea.getAttributeValue("AXRole"),
+      "AXWebArea",
+      "Got web area accessible"
+    );
+
+    const textSearchCount = webArea.getParameterizedAttributeValue(
+      "AXUIElementCountForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+    is(textSearchCount, 2, "Found 2 matching items in text search");
+
+    const results = webArea.getParameterizedAttributeValue(
+      "AXUIElementsForSearchPredicate",
+      NSDictionary(searchPred)
+    );
+
+    info(results.map(r => r.getAttributeValue("AXMozDebugDescription")));
+
+    Assert.deepEqual(
+      results.map(r => r.getAttributeValue("AXValue")),
+      [
+        "Okay, alright, Saturday is good, Saturday's good, I could spend a week in 1955.",
+        "I could hang out, you could show me around.",
+      ],
+      "Correct text search results"
+    );
+  },
+  { topLevel: false, iframe: true, remoteIframe: true }
+);
diff --git a/accessible/tests/browser/mac/browser_selectables.js b/accessible/tests/browser/mac/browser_selectables.js
new file mode 100644
index 0000000000..af88c2e136
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_selectables.js
@@ -0,0 +1,363 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+function getSelectedIds(selectable) {
+  return selectable
+    .getAttributeValue("AXSelectedChildren")
+    .map(c => c.getAttributeValue("AXDOMIdentifier"));
+}
+
+/**
+ * Test aria tabs
+ */
+addAccessibleTask("mac/doc_aria_tabs.html", async (browser, accDoc) => {
+  let tablist = getNativeInterface(accDoc, "tablist");
+  is(
+    tablist.getAttributeValue("AXRole"),
+    "AXTabGroup",
+    "Correct role for tablist"
+  );
+
+  let tabMacAccs = tablist.getAttributeValue("AXTabs");
+  is(tabMacAccs.length, 3, "3 items in AXTabs");
+
+  let selectedTabs = tablist.getAttributeValue("AXSelectedChildren");
+  is(selectedTabs.length, 1, "one selected tab");
+
+  let tab = selectedTabs[0];
+  is(tab.getAttributeValue("AXRole"), "AXRadioButton", "Correct role for tab");
+  is(
+    tab.getAttributeValue("AXSubrole"),
+    "AXTabButton",
+    "Correct subrole for tab"
+  );
+  is(tab.getAttributeValue("AXTitle"), "First Tab", "Correct title for tab");
+
+  let tabToSelect = tabMacAccs[1];
+  is(
+    tabToSelect.getAttributeValue("AXTitle"),
+    "Second Tab",
+    "Correct title for tab"
+  );
+
+  let actions = tabToSelect.actionNames;
+  ok(true, actions);
+  ok(actions.includes("AXPress"), "Has switch action");
+
+  let evt = waitForMacEvent("AXSelectedChildrenChanged");
+  tabToSelect.performAction("AXPress");
+  await evt;
+
+  selectedTabs = tablist.getAttributeValue("AXSelectedChildren");
+  is(selectedTabs.length, 1, "one selected tab");
+  is(
+    selectedTabs[0].getAttributeValue("AXTitle"),
+    "Second Tab",
+    "Correct title for tab"
+  );
+});
+
+addAccessibleTask('<p id="p">hello</p>', async (browser, accDoc) => {
+  let p = getNativeInterface(accDoc, "p");
+  ok(
+    p.attributeNames.includes("AXSelected"),
+    "html element includes 'AXSelected' attribute"
+  );
+  is(p.getAttributeValue("AXSelected"), 0, "AX selected is 'false'");
+});
+
+addAccessibleTask(
+  `<select id="select" aria-label="Choose a number" multiple>
+    <option id="one" selected>One</option>
+    <option id="two">Two</option>
+    <option id="three">Three</option>
+    <option id="four" disabled>Four</option>
+  </select>`,
+  async (browser, accDoc) => {
+    let select = getNativeInterface(accDoc, "select");
+    let one = getNativeInterface(accDoc, "one");
+    let two = getNativeInterface(accDoc, "two");
+    let three = getNativeInterface(accDoc, "three");
+    let four = getNativeInterface(accDoc, "four");
+
+    is(
+      select.getAttributeValue("AXTitle"),
+      "Choose a number",
+      "Select titled correctly"
+    );
+    ok(
+      select.attributeNames.includes("AXOrientation"),
+      "Have orientation attribute"
+    );
+    ok(
+      select.isAttributeSettable("AXSelectedChildren"),
+      "Select can have AXSelectedChildren set"
+    );
+
+    is(one.getAttributeValue("AXTitle"), "", "Option should not have a title");
+    is(
+      one.getAttributeValue("AXValue"),
+      "One",
+      "Option should have correct value"
+    );
+    is(
+      one.getAttributeValue("AXRole"),
+      "AXStaticText",
+      "Options should have AXStaticText role"
+    );
+    ok(one.isAttributeSettable("AXSelected"), "Option can have AXSelected set");
+
+    is(select.getAttributeValue("AXSelectedChildren").length, 1);
+    let evt = waitForMacEvent("AXSelectedChildrenChanged");
+    one.setAttributeValue("AXSelected", false);
+    await evt;
+    is(select.getAttributeValue("AXSelectedChildren").length, 0);
+    evt = waitForMacEvent("AXSelectedChildrenChanged");
+    three.setAttributeValue("AXSelected", true);
+    await evt;
+    is(select.getAttributeValue("AXSelectedChildren").length, 1);
+    ok(getSelectedIds(select).includes("three"), "'three' is selected");
+    evt = waitForMacEvent("AXSelectedChildrenChanged");
+    select.setAttributeValue("AXSelectedChildren", [one, two]);
+    await evt;
+    await untilCacheOk(() => {
+      let ids = getSelectedIds(select);
+      return ids[0] == "one" && ids[1] == "two";
+    }, "Got correct selected children");
+
+    evt = waitForMacEvent("AXSelectedChildrenChanged");
+    select.setAttributeValue("AXSelectedChildren", [three, two, four]);
+    await evt;
+    await untilCacheOk(() => {
+      let ids = getSelectedIds(select);
+      return ids[0] == "two" && ids[1] == "three";
+    }, "Got correct selected children");
+
+    ok(!four.getAttributeValue("AXEnabled"), "Disabled option is disabled");
+  }
+);
+
+addAccessibleTask(
+  `<select id="select" aria-label="Choose a thing" multiple>
+    <optgroup label="Fruits">
+      <option id="banana" selected>Banana</option>
+      <option id="apple">Apple</option>
+      <option id="orange">Orange</option>
+    </optgroup>
+    <optgroup label="Vegetables">
+      <option id="lettuce" selected>Lettuce</option>
+      <option id="tomato">Tomato</option>
+      <option id="onion">Onion</option>
+    </optgroup>
+    <optgroup label="Spices">
+      <option id="cumin">Cumin</option>
+      <option id="coriander">Coriander</option>
+      <option id="allspice" selected>Allspice</option>
+    </optgroup>
+    <option id="everything">Everything</option>
+  </select>`,
+  async (browser, accDoc) => {
+    let select = getNativeInterface(accDoc, "select");
+
+    is(
+      select.getAttributeValue("AXTitle"),
+      "Choose a thing",
+      "Select titled correctly"
+    );
+    ok(
+      select.attributeNames.includes("AXOrientation"),
+      "Have orientation attribute"
+    );
+    ok(
+      select.isAttributeSettable("AXSelectedChildren"),
+      "Select can have AXSelectedChildren set"
+    );
+    let childValueSelectablePairs = select
+      .getAttributeValue("AXChildren")
+      .map(c => [
+        c.getAttributeValue("AXValue"),
+        c.isAttributeSettable("AXSelected"),
+        c.getAttributeValue("AXEnabled"),
+      ]);
+    [
+      ["​", false, 0],
+      ["Fruits", false, 0],
+      ["Banana", true, 1],
+      ["Apple", true, 1],
+      ["Orange", true, 1],
+      ["​", false, 0],
+      ["Vegetables", false, 0],
+      ["Lettuce", true, 1],
+      ["Tomato", true, 1],
+      ["Onion", true, 1],
+      ["​", false, 0],
+      ["Spices", false, 0],
+      ["Cumin", true, 1],
+      ["Coriander", true, 1],
+      ["Allspice", true, 1],
+      ["Everything", true, 1],
+    ];
+    Assert.deepEqual(
+      childValueSelectablePairs,
+      [
+        ["​", false, false],
+        ["Fruits", false, false],
+        ["Banana", true, true],
+        ["Apple", true, true],
+        ["Orange", true, true],
+        ["​", false, false],
+        ["Vegetables", false, false],
+        ["Lettuce", true, true],
+        ["Tomato", true, true],
+        ["Onion", true, true],
+        ["​", false, false],
+        ["Spices", false, false],
+        ["Cumin", true, true],
+        ["Coriander", true, true],
+        ["Allspice", true, true],
+        ["Everything", true, true],
+      ],
+      "Options are selectable, group labels are not"
+    );
+
+    let allspice = getNativeInterface(accDoc, "allspice");
+    is(
+      allspice.getAttributeValue("AXTitle"),
+      "",
+      "Option should not have a title"
+    );
+    is(
+      allspice.getAttributeValue("AXValue"),
+      "Allspice",
+      "Option should have a value"
+    );
+    is(
+      allspice.getAttributeValue("AXRole"),
+      "AXStaticText",
+      "Options should have AXStaticText role"
+    );
+    ok(
+      allspice.isAttributeSettable("AXSelected"),
+      "Option can have AXSelected set"
+    );
+    is(
+      allspice
+        .getAttributeValue("AXParent")
+        .getAttributeValue("AXDOMIdentifier"),
+      "select",
+      "Select is direct parent of nested option"
+    );
+
+    let groupLabel = select.getAttributeValue("AXChildren")[1];
+    ok(
+      !groupLabel.isAttributeSettable("AXSelected"),
+      "Group label should not be selectable"
+    );
+    is(
+      groupLabel.getAttributeValue("AXValue"),
+      "Fruits",
+      "Group label should have a value"
+    );
+    is(
+      groupLabel.getAttributeValue("AXTitle"),
+      null,
+      "Group label should not have a title"
+    );
+    is(
+      groupLabel.getAttributeValue("AXRole"),
+      "AXStaticText",
+      "Group label should have AXStaticText role"
+    );
+    is(
+      groupLabel
+        .getAttributeValue("AXParent")
+        .getAttributeValue("AXDOMIdentifier"),
+      "select",
+      "Select is direct parent of group label"
+    );
+
+    Assert.deepEqual(getSelectedIds(select), ["banana", "lettuce", "allspice"]);
+  }
+);
+
+addAccessibleTask(
+  `<div role="listbox" id="select" aria-label="Choose a number" aria-multiselectable="true">
+    <div role="option" id="one" aria-selected="true">One</div>
+    <div role="option" id="two">Two</div>
+    <div role="option" id="three">Three</div>
+    <div role="option" id="four" aria-disabled="true">Four</div>
+</div>`,
+  async (browser, accDoc) => {
+    let select = getNativeInterface(accDoc, "select");
+    let one = getNativeInterface(accDoc, "one");
+    let two = getNativeInterface(accDoc, "two");
+    let three = getNativeInterface(accDoc, "three");
+    let four = getNativeInterface(accDoc, "four");
+
+    is(
+      select.getAttributeValue("AXTitle"),
+      "Choose a number",
+      "Select titled correctly"
+    );
+    ok(
+      select.attributeNames.includes("AXOrientation"),
+      "Have orientation attribute"
+    );
+    ok(
+      select.isAttributeSettable("AXSelectedChildren"),
+      "Select can have AXSelectedChildren set"
+    );
+
+    is(one.getAttributeValue("AXTitle"), "", "Option should not have a title");
+    is(
+      one.getAttributeValue("AXValue"),
+      "One",
+      "Option should have correct value"
+    );
+    is(
+      one.getAttributeValue("AXRole"),
+      "AXStaticText",
+      "Options should have AXStaticText role"
+    );
+    ok(one.isAttributeSettable("AXSelected"), "Option can have AXSelected set");
+
+    is(select.getAttributeValue("AXSelectedChildren").length, 1);
+    let evt = waitForMacEvent("AXSelectedChildrenChanged");
+    // Change selection from content.
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("one").removeAttribute("aria-selected");
+    });
+    await evt;
+    is(select.getAttributeValue("AXSelectedChildren").length, 0);
+    evt = waitForMacEvent("AXSelectedChildrenChanged");
+    three.setAttributeValue("AXSelected", true);
+    await evt;
+    is(select.getAttributeValue("AXSelectedChildren").length, 1);
+    ok(getSelectedIds(select).includes("three"), "'three' is selected");
+    evt = waitForMacEvent("AXSelectedChildrenChanged");
+    select.setAttributeValue("AXSelectedChildren", [one, two]);
+    await evt;
+    await untilCacheOk(() => {
+      let ids = getSelectedIds(select);
+      return ids[0] == "one" && ids[1] == "two";
+    }, "Got correct selected children");
+
+    evt = waitForMacEvent("AXSelectedChildrenChanged");
+    select.setAttributeValue("AXSelectedChildren", [three, two, four]);
+    await evt;
+    await untilCacheOk(() => {
+      let ids = getSelectedIds(select);
+      return ids[0] == "two" && ids[1] == "three";
+    }, "Got correct selected children");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_table.js b/accessible/tests/browser/mac/browser_table.js
new file mode 100644
index 0000000000..50ae697deb
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_table.js
@@ -0,0 +1,629 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });
+
+/* import-globals-from ../../mochitest/attributes.js */
+loadScripts({ name: "attributes.js", dir: MOCHITESTS_DIR });
+
+/**
+ * Helper function to test table consistency.
+ */
+function testTableConsistency(table, expectedRowCount, expectedColumnCount) {
+  is(table.getAttributeValue("AXRole"), "AXTable", "Correct role for table");
+
+  let tableChildren = table.getAttributeValue("AXChildren");
+  // XXX: Should be expectedRowCount+ExpectedColumnCount+1 children, rows (incl headers) + cols + headers
+  // if we're trying to match Safari.
+  is(
+    tableChildren.length,
+    expectedRowCount + expectedColumnCount,
+    "Table has children = rows (4) + cols (3)"
+  );
+  for (let i = 0; i < tableChildren.length; i++) {
+    let currChild = tableChildren[i];
+    if (i < expectedRowCount) {
+      is(
+        currChild.getAttributeValue("AXRole"),
+        "AXRow",
+        "Correct role for row"
+      );
+    } else {
+      is(
+        currChild.getAttributeValue("AXRole"),
+        "AXColumn",
+        "Correct role for col"
+      );
+      is(
+        currChild.getAttributeValue("AXRoleDescription"),
+        "column",
+        "Correct role desc for col"
+      );
+    }
+  }
+
+  is(
+    table.getAttributeValue("AXColumnCount"),
+    expectedColumnCount,
+    "Table has correct column count."
+  );
+  is(
+    table.getAttributeValue("AXRowCount"),
+    expectedRowCount,
+    "Table has correct row count."
+  );
+
+  let cols = table.getAttributeValue("AXColumns");
+  is(cols.length, expectedColumnCount, "Table has col list of correct length");
+  for (let i = 0; i < cols.length; i++) {
+    let currCol = cols[i];
+    let currChildren = currCol.getAttributeValue("AXChildren");
+    is(
+      currChildren.length,
+      expectedRowCount,
+      "Column has correct number of cells"
+    );
+    for (let j = 0; j < currChildren.length; j++) {
+      let currChild = currChildren[j];
+      is(
+        currChild.getAttributeValue("AXRole"),
+        "AXCell",
+        "Column child is cell"
+      );
+    }
+  }
+
+  let rows = table.getAttributeValue("AXRows");
+  is(rows.length, expectedRowCount, "Table has row list of correct length");
+  for (let i = 0; i < rows.length; i++) {
+    let currRow = rows[i];
+    let currChildren = currRow.getAttributeValue("AXChildren");
+    is(
+      currChildren.length,
+      expectedColumnCount,
+      "Row has correct number of cells"
+    );
+    for (let j = 0; j < currChildren.length; j++) {
+      let currChild = currChildren[j];
+      is(currChild.getAttributeValue("AXRole"), "AXCell", "Row child is cell");
+    }
+  }
+}
+
+/**
+ * Test table, columns, rows
+ */
+addAccessibleTask(
+  `<table id="customers">
+    <tbody>
+      <tr id="firstrow"><th>Company</th><th>Contact</th><th>Country</th></tr>
+      <tr><td>Alfreds Futterkiste</td><td>Maria Anders</td><td>Germany</td></tr>
+      <tr><td>Centro comercial Moctezuma</td><td>Francisco Chang</td><td>Mexico</td></tr>
+      <tr><td>Ernst Handel</td><td>Roland Mendel</td><td>Austria</td></tr>
+    </tbody>
+  </table>`,
+  async (browser, accDoc) => {
+    let table = getNativeInterface(accDoc, "customers");
+    testTableConsistency(table, 4, 3);
+
+    const rowText = [
+      "Madrigal Electromotive GmbH",
+      "Lydia Rodarte-Quayle",
+      "Germany",
+    ];
+    let reorder = waitForEvent(EVENT_REORDER, "customers");
+    await SpecialPowers.spawn(browser, [rowText], _rowText => {
+      let tr = content.document.createElement("tr");
+      for (let t of _rowText) {
+        let td = content.document.createElement("td");
+        td.textContent = t;
+        tr.appendChild(td);
+      }
+      content.document.getElementById("customers").appendChild(tr);
+    });
+    await reorder;
+
+    let cols = table.getAttributeValue("AXColumns");
+    is(cols.length, 3, "Table has col list of correct length");
+    for (let i = 0; i < cols.length; i++) {
+      let currCol = cols[i];
+      let currChildren = currCol.getAttributeValue("AXChildren");
+      is(currChildren.length, 5, "Column has correct number of cells");
+      let lastCell = currChildren[currChildren.length - 1];
+      let cellChildren = lastCell.getAttributeValue("AXChildren");
+      is(cellChildren.length, 1, "Cell has a single text child");
+      is(
+        cellChildren[0].getAttributeValue("AXRole"),
+        "AXStaticText",
+        "Correct role for cell child"
+      );
+      is(
+        cellChildren[0].getAttributeValue("AXValue"),
+        rowText[i],
+        "Correct text for cell"
+      );
+    }
+
+    reorder = waitForEvent(EVENT_REORDER, "firstrow");
+    await SpecialPowers.spawn(browser, [], () => {
+      let td = content.document.createElement("td");
+      td.textContent = "Ticker";
+      content.document.getElementById("firstrow").appendChild(td);
+    });
+    await reorder;
+
+    cols = table.getAttributeValue("AXColumns");
+    is(cols.length, 4, "Table has col list of correct length");
+    is(
+      cols[cols.length - 1].getAttributeValue("AXChildren").length,
+      1,
+      "Last column has single child"
+    );
+
+    reorder = waitForEvent(
+      EVENT_REORDER,
+      e => e.accessible.role == ROLE_DOCUMENT
+    );
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("customers").remove();
+    });
+    await reorder;
+
+    try {
+      cols[0].getAttributeValue("AXChildren");
+      ok(false, "Getting children from column of expired table should fail");
+    } catch (e) {
+      ok(true, "Getting children from column of expired table should fail");
+    }
+  }
+);
+
+addAccessibleTask(
+  `<table id="table">
+    <tr>
+      <th colspan="2" id="header1">Header 1</th>
+      <th id="header2">Header 2</th>
+    </tr>
+    <tr>
+      <td id="cell1">one</td>
+      <td id="cell2" rowspan="2">two</td>
+      <td id="cell3">three</td>
+    </tr>
+    <tr>
+    <td id="cell4">four</td>
+    <td id="cell5">five</td>
+  </tr>
+  </table>`,
+  (browser, accDoc) => {
+    let table = getNativeInterface(accDoc, "table");
+
+    let getCellAt = (col, row) =>
+      table.getParameterizedAttributeValue("AXCellForColumnAndRow", [col, row]);
+
+    function testCell(cell, expectedId, expectedColRange, expectedRowRange) {
+      is(
+        cell.getAttributeValue("AXDOMIdentifier"),
+        expectedId,
+        "Correct DOM Identifier"
+      );
+      Assert.deepEqual(
+        cell.getAttributeValue("AXColumnIndexRange"),
+        expectedColRange,
+        "Correct column range"
+      );
+      Assert.deepEqual(
+        cell.getAttributeValue("AXRowIndexRange"),
+        expectedRowRange,
+        "Correct row range"
+      );
+    }
+
+    testCell(getCellAt(0, 0), "header1", [0, 2], [0, 1]);
+    testCell(getCellAt(1, 0), "header1", [0, 2], [0, 1]);
+    testCell(getCellAt(2, 0), "header2", [2, 1], [0, 1]);
+
+    testCell(getCellAt(0, 1), "cell1", [0, 1], [1, 1]);
+    testCell(getCellAt(1, 1), "cell2", [1, 1], [1, 2]);
+    testCell(getCellAt(2, 1), "cell3", [2, 1], [1, 1]);
+
+    testCell(getCellAt(0, 2), "cell4", [0, 1], [2, 1]);
+    testCell(getCellAt(1, 2), "cell2", [1, 1], [1, 2]);
+    testCell(getCellAt(2, 2), "cell5", [2, 1], [2, 1]);
+
+    let colHeaders = table.getAttributeValue("AXColumnHeaderUIElements");
+    Assert.deepEqual(
+      colHeaders.map(c => c.getAttributeValue("AXDOMIdentifier")),
+      ["header1", "header1", "header2"],
+      "Correct column headers"
+    );
+  }
+);
+
+addAccessibleTask(
+  `<table id="table">
+    <tr>
+      <td>Foo</td>
+    </tr>
+  </table>`,
+  (browser, accDoc) => {
+    // Make sure we guess this table to be a layout table.
+    testAttrs(
+      findAccessibleChildByID(accDoc, "table"),
+      { "layout-guess": "true" },
+      true
+    );
+
+    let table = getNativeInterface(accDoc, "table");
+    is(
+      table.getAttributeValue("AXRole"),
+      "AXGroup",
+      "Correct role (AXGroup) for layout table"
+    );
+
+    let children = table.getAttributeValue("AXChildren");
+    is(
+      children.length,
+      1,
+      "Layout table has single child (no additional columns)"
+    );
+  }
+);
+
+addAccessibleTask(
+  `<div id="table" role="table">
+    <span style="display: block;">
+      <div role="row">
+        <div role="cell">Cell 1</div>
+        <div role="cell">Cell 2</div>
+      </div>
+    </span>
+    <span style="display: block;">
+      <div role="row">
+        <span style="display: block;">
+          <div role="cell">Cell 3</div>
+          <div role="cell">Cell 4</div>
+        </span>
+      </div>
+    </span>
+  </div>`,
+  async (browser, accDoc) => {
+    let table = getNativeInterface(accDoc, "table");
+    testTableConsistency(table, 2, 2);
+  }
+);
+
+/*
+ * After executing function 'change' which operates on 'elem', verify the specified
+ * 'event' (if not null) is fired on elem. After the event, check if the given
+ * native accessible 'table' is a layout or data table by role using 'isLayout'.
+ */
+async function testIsLayout(table, elem, event, change, isLayout) {
+  info(
+    "Changing " +
+      elem +
+      ", expecting table change to " +
+      (isLayout ? "AXGroup" : "AXTable")
+  );
+  const toWait = event ? waitForEvent(event, elem) : null;
+  await change();
+  if (toWait) {
+    await toWait;
+  }
+  let intendedRole = isLayout ? "AXGroup" : "AXTable";
+  await untilCacheIs(
+    () => table.getAttributeValue("AXRole"),
+    intendedRole,
+    "Table role correct after change"
+  );
+}
+
+/*
+ * The following attributes should fire an attribute changed
+ * event, which in turn invalidates the layout-table cache
+ * associated with the given table. After adding and removing
+ * each attr, verify the table is a data or layout table,
+ * appropriately. Attrs: summary, abbr, scope, headers
+ */
+addAccessibleTask(
+  `<table id="table" summary="example summary">
+    <tr role="presentation">
+      <td id="cellOne">cell1</td>
+      <td>cell2</td>
+    </tr>
+    <tr>
+      <td id="cellThree">cell3</td>
+      <td>cell4</td>
+    </tr>
+  </table>`,
+  async (browser, accDoc) => {
+    let table = getNativeInterface(accDoc, "table");
+    // summary attr should take precedence over role="presentation" to make this
+    // a data table
+    is(table.getAttributeValue("AXRole"), "AXTable", "Table is data table");
+
+    info("Removing summary attr");
+    // after summary is removed, we should have a layout table
+    await testIsLayout(
+      table,
+      "table",
+      EVENT_OBJECT_ATTRIBUTE_CHANGED,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document.getElementById("table").removeAttribute("summary");
+        });
+      },
+      true
+    );
+
+    info("Setting abbr attr");
+    // after abbr is set we should have a data table again
+    await testIsLayout(
+      table,
+      "cellThree",
+      EVENT_OBJECT_ATTRIBUTE_CHANGED,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("cellThree")
+            .setAttribute("abbr", "hello world");
+        });
+      },
+      false
+    );
+
+    info("Removing abbr attr");
+    // after abbr is removed we should have a layout table again
+    await testIsLayout(
+      table,
+      "cellThree",
+      EVENT_OBJECT_ATTRIBUTE_CHANGED,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document.getElementById("cellThree").removeAttribute("abbr");
+        });
+      },
+      true
+    );
+
+    info("Setting scope attr");
+    // after scope is set we should have a data table again
+    await testIsLayout(
+      table,
+      "cellThree",
+      EVENT_OBJECT_ATTRIBUTE_CHANGED,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("cellThree")
+            .setAttribute("scope", "col");
+        });
+      },
+      false
+    );
+
+    info("Removing scope attr");
+    // remove scope should give layout
+    await testIsLayout(
+      table,
+      "cellThree",
+      EVENT_OBJECT_ATTRIBUTE_CHANGED,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document.getElementById("cellThree").removeAttribute("scope");
+        });
+      },
+      true
+    );
+
+    info("Setting headers attr");
+    // add headers attr should give data
+    await testIsLayout(
+      table,
+      "cellThree",
+      EVENT_OBJECT_ATTRIBUTE_CHANGED,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("cellThree")
+            .setAttribute("headers", "cellOne");
+        });
+      },
+      false
+    );
+
+    info("Removing headers attr");
+    // remove headers attr should give layout
+    await testIsLayout(
+      table,
+      "cellThree",
+      EVENT_OBJECT_ATTRIBUTE_CHANGED,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("cellThree")
+            .removeAttribute("headers");
+        });
+      },
+      true
+    );
+  }
+);
+
+/*
+ * The following style changes should fire a table style changed
+ * event, which in turn invalidates the layout-table cache
+ * associated with the given table.
+ */
+addAccessibleTask(
+  `<table id="table">
+    <tr id="rowOne">
+      <td id="cellOne">cell1</td>
+      <td>cell2</td>
+    </tr>
+    <tr>
+      <td>cell3</td>
+      <td>cell4</td>
+    </tr>
+  </table>`,
+  async (browser, accDoc) => {
+    let table = getNativeInterface(accDoc, "table");
+    // we should start as a layout table
+    is(table.getAttributeValue("AXRole"), "AXGroup", "Table is layout table");
+
+    info("Adding cell border");
+    // after cell border added, we should have a data table
+    await testIsLayout(
+      table,
+      "cellOne",
+      null,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("cellOne")
+            .style.setProperty("border", "5px solid green");
+        });
+      },
+      false
+    );
+
+    info("Removing cell border");
+    // after cell border removed, we should have a layout table
+    await testIsLayout(
+      table,
+      "cellOne",
+      null,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("cellOne")
+            .style.removeProperty("border");
+        });
+      },
+      true
+    );
+
+    info("Adding row background");
+    // after row background added, we should have a data table
+    await testIsLayout(
+      table,
+      "rowOne",
+      null,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("rowOne")
+            .style.setProperty("background-color", "green");
+        });
+      },
+      false
+    );
+
+    info("Removing row background");
+    // after row background removed, we should have a layout table
+    await testIsLayout(
+      table,
+      "rowOne",
+      null,
+      async () => {
+        await SpecialPowers.spawn(browser, [], () => {
+          content.document
+            .getElementById("rowOne")
+            .style.removeProperty("background-color");
+        });
+      },
+      true
+    );
+  }
+);
+
+/*
+ * thead/tbody elements with click handlers should:
+ * (a) render as AXGroup elements
+ * (b) expose their rows as part of their parent table's AXRows array
+ */
+addAccessibleTask(
+  `<table id="table">
+    <thead id="thead">
+      <tr><td>head row</td></tr>
+    </thead>
+    <tbody id="tbody">
+      <tr><td>body row</td></tr>
+      <tr><td>another body row</td></tr>
+    </tbody>
+  </table>`,
+  async (browser, accDoc) => {
+    let table = getNativeInterface(accDoc, "table");
+
+    // No click handlers present on thead/tbody
+    let tableChildren = table.getAttributeValue("AXChildren");
+    let tableRows = table.getAttributeValue("AXRows");
+
+    is(tableChildren.length, 4, "Table has four children (3 row + 1 col)");
+    is(tableRows.length, 3, "Table has three rows");
+
+    for (let i = 0; i < tableChildren.length; i++) {
+      const child = tableChildren[i];
+      if (i < 3) {
+        is(
+          child.getAttributeValue("AXRole"),
+          "AXRow",
+          "Table's first 3 children are rows"
+        );
+      } else {
+        is(
+          child.getAttributeValue("AXRole"),
+          "AXColumn",
+          "Table's last child is a column"
+        );
+      }
+    }
+    const reorder = waitForEvent(EVENT_REORDER);
+    await invokeContentTask(browser, [], () => {
+      const head = content.document.getElementById("thead");
+      const body = content.document.getElementById("tbody");
+
+      head.addEventListener("click", function () {});
+      body.addEventListener("click", function () {});
+    });
+    await reorder;
+
+    // Click handlers present
+    tableChildren = table.getAttributeValue("AXChildren");
+
+    is(tableChildren.length, 3, "Table has three children (2 groups + 1 col)");
+    is(
+      tableChildren[0].getAttributeValue("AXRole"),
+      "AXGroup",
+      "Child one is a group"
+    );
+    is(
+      tableChildren[0].getAttributeValue("AXChildren").length,
+      1,
+      "Child one has one child"
+    );
+
+    is(
+      tableChildren[1].getAttributeValue("AXRole"),
+      "AXGroup",
+      "Child two is a group"
+    );
+    is(
+      tableChildren[1].getAttributeValue("AXChildren").length,
+      2,
+      "Child two has two children"
+    );
+
+    is(
+      tableChildren[2].getAttributeValue("AXRole"),
+      "AXColumn",
+      "Child three is a col"
+    );
+
+    tableRows = table.getAttributeValue("AXRows");
+    is(tableRows.length, 3, "Table has three rows");
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_text_basics.js b/accessible/tests/browser/mac/browser_text_basics.js
new file mode 100644
index 0000000000..21637d0524
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_text_basics.js
@@ -0,0 +1,426 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+function testRangeAtMarker(macDoc, marker, attribute, expected, msg) {
+  let range = macDoc.getParameterizedAttributeValue(attribute, marker);
+  is(stringForRange(macDoc, range), expected, msg);
+}
+
+function testUIElement(
+  macDoc,
+  marker,
+  msg,
+  expectedRole,
+  expectedValue,
+  expectedRange
+) {
+  let elem = macDoc.getParameterizedAttributeValue(
+    "AXUIElementForTextMarker",
+    marker
+  );
+  is(
+    elem.getAttributeValue("AXRole"),
+    expectedRole,
+    `${msg}: element role matches`
+  );
+  is(elem.getAttributeValue("AXValue"), expectedValue, `${msg}: element value`);
+  let elemRange = macDoc.getParameterizedAttributeValue(
+    "AXTextMarkerRangeForUIElement",
+    elem
+  );
+  is(
+    stringForRange(macDoc, elemRange),
+    expectedRange,
+    `${msg}: element range matches element value`
+  );
+}
+
+function testStyleRun(macDoc, marker, msg, expectedStyleRun) {
+  testRangeAtMarker(
+    macDoc,
+    marker,
+    "AXStyleTextMarkerRangeForTextMarker",
+    expectedStyleRun,
+    `${msg}: style run matches`
+  );
+}
+
+function testParagraph(macDoc, marker, msg, expectedParagraph) {
+  testRangeAtMarker(
+    macDoc,
+    marker,
+    "AXParagraphTextMarkerRangeForTextMarker",
+    expectedParagraph,
+    `${msg}: paragraph matches`
+  );
+}
+
+function testWords(macDoc, marker, msg, expectedLeft, expectedRight) {
+  testRangeAtMarker(
+    macDoc,
+    marker,
+    "AXLeftWordTextMarkerRangeForTextMarker",
+    expectedLeft,
+    `${msg}: left word matches`
+  );
+
+  testRangeAtMarker(
+    macDoc,
+    marker,
+    "AXRightWordTextMarkerRangeForTextMarker",
+    expectedRight,
+    `${msg}: right word matches`
+  );
+}
+
+function testLines(
+  macDoc,
+  marker,
+  msg,
+  expectedLine,
+  expectedLeft,
+  expectedRight
+) {
+  testRangeAtMarker(
+    macDoc,
+    marker,
+    "AXLineTextMarkerRangeForTextMarker",
+    expectedLine,
+    `${msg}: line matches`
+  );
+
+  testRangeAtMarker(
+    macDoc,
+    marker,
+    "AXLeftLineTextMarkerRangeForTextMarker",
+    expectedLeft,
+    `${msg}: left line matches`
+  );
+
+  testRangeAtMarker(
+    macDoc,
+    marker,
+    "AXRightLineTextMarkerRangeForTextMarker",
+    expectedRight,
+    `${msg}: right line matches`
+  );
+}
+
+function* markerIterator(macDoc, reverse = false) {
+  let m = macDoc.getAttributeValue(
+    reverse ? "AXEndTextMarker" : "AXStartTextMarker"
+  );
+  let c = 0;
+  while (m) {
+    yield [m, c++];
+    m = macDoc.getParameterizedAttributeValue(
+      reverse
+        ? "AXPreviousTextMarkerForTextMarker"
+        : "AXNextTextMarkerForTextMarker",
+      m
+    );
+  }
+}
+
+// Tests consistency in text markers between:
+// 1. "Linked list" forward navagation
+// 2. Getting markers by index
+// 3. "Linked list" reverse navagation
+// For each iteration method check that the returned index is consistent
+function testMarkerIntegrity(accDoc, expectedMarkerValues) {
+  let macDoc = accDoc.nativeInterface.QueryInterface(
+    Ci.nsIAccessibleMacInterface
+  );
+
+  // Iterate forward with "AXNextTextMarkerForTextMarker"
+  let prevMarker;
+  let count = 0;
+  for (let [marker, index] of markerIterator(macDoc)) {
+    count++;
+    let markerIndex = macDoc.getParameterizedAttributeValue(
+      "AXIndexForTextMarker",
+      marker
+    );
+    is(
+      markerIndex,
+      index,
+      `Correct index in "AXNextTextMarkerForTextMarker": ${index}`
+    );
+    if (prevMarker) {
+      let range = macDoc.getParameterizedAttributeValue(
+        "AXTextMarkerRangeForUnorderedTextMarkers",
+        [prevMarker, marker]
+      );
+      is(
+        macDoc.getParameterizedAttributeValue(
+          "AXLengthForTextMarkerRange",
+          range
+        ),
+        1,
+        `[${index}] marker moved one character`
+      );
+    }
+    prevMarker = marker;
+
+    testWords(
+      macDoc,
+      marker,
+      `At index ${index}`,
+      ...expectedMarkerValues[index].words
+    );
+    testLines(
+      macDoc,
+      marker,
+      `At index ${index}`,
+      ...expectedMarkerValues[index].lines
+    );
+    testUIElement(
+      macDoc,
+      marker,
+      `At index ${index}`,
+      ...expectedMarkerValues[index].element
+    );
+    testParagraph(
+      macDoc,
+      marker,
+      `At index ${index}`,
+      expectedMarkerValues[index].paragraph
+    );
+    testStyleRun(
+      macDoc,
+      marker,
+      `At index ${index}`,
+      expectedMarkerValues[index].style
+    );
+  }
+
+  is(expectedMarkerValues.length, count, `Correct marker count: ${count}`);
+
+  // Use "AXTextMarkerForIndex" to retrieve all text markers
+  for (let i = 0; i < count; i++) {
+    let marker = macDoc.getParameterizedAttributeValue(
+      "AXTextMarkerForIndex",
+      i
+    );
+    let index = macDoc.getParameterizedAttributeValue(
+      "AXIndexForTextMarker",
+      marker
+    );
+    is(index, i, `Correct index in "AXTextMarkerForIndex": ${i}`);
+
+    if (i == count - 1) {
+      ok(
+        !macDoc.getParameterizedAttributeValue(
+          "AXNextTextMarkerForTextMarker",
+          marker
+        ),
+        "Iterated through all markers"
+      );
+    }
+  }
+
+  count = expectedMarkerValues.length;
+
+  // Iterate backward with "AXPreviousTextMarkerForTextMarker"
+  for (let [marker] of markerIterator(macDoc, true)) {
+    if (count <= 0) {
+      ok(false, "Exceeding marker count");
+      break;
+    }
+    count--;
+    let index = macDoc.getParameterizedAttributeValue(
+      "AXIndexForTextMarker",
+      marker
+    );
+    is(
+      index,
+      count,
+      `Correct index in "AXPreviousTextMarkerForTextMarker": ${count}`
+    );
+  }
+
+  is(count, 0, "Iterated backward through all text markers");
+}
+
+// Run tests with old word segmenter
+addAccessibleTask("mac/doc_textmarker_test.html", async (browser, accDoc) => {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["intl.icu4x.segmenter.enabled", false],
+      ["layout.word_select.stop_at_punctuation", true], // This is default
+    ],
+  });
+
+  const expectedValues = await SpecialPowers.spawn(browser, [], async () => {
+    return content.wrappedJSObject.getExpected(false, true);
+  });
+
+  testMarkerIntegrity(accDoc, expectedValues);
+
+  await SpecialPowers.popPrefEnv();
+});
+
+// new UAX#14 segmenter without stop_at_punctuation.
+addAccessibleTask("mac/doc_textmarker_test.html", async (browser, accDoc) => {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["intl.icu4x.segmenter.enabled", true],
+      ["layout.word_select.stop_at_punctuation", false],
+    ],
+  });
+
+  const expectedValues = await SpecialPowers.spawn(browser, [], async () => {
+    return content.wrappedJSObject.getExpected(true, false);
+  });
+
+  testMarkerIntegrity(accDoc, expectedValues);
+
+  await SpecialPowers.popPrefEnv();
+});
+
+// new UAX#14 segmenter with stop_at_punctuation
+addAccessibleTask("mac/doc_textmarker_test.html", async (browser, accDoc) => {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["intl.icu4x.segmenter.enabled", true],
+      ["layout.word_select.stop_at_punctuation", true], // this is default
+    ],
+  });
+
+  const expectedValues = await SpecialPowers.spawn(browser, [], async () => {
+    return content.wrappedJSObject.getExpected(true, true);
+  });
+
+  testMarkerIntegrity(accDoc, expectedValues);
+
+  await SpecialPowers.popPrefEnv();
+});
+
+// Test text marker lesser-than operator
+addAccessibleTask(
+  `<p id="p">hello <a id="a" href="#">goodbye</a> world</p>`,
+  async (browser, accDoc) => {
+    let macDoc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    let start = macDoc.getParameterizedAttributeValue(
+      "AXTextMarkerForIndex",
+      1
+    );
+    let end = macDoc.getParameterizedAttributeValue("AXTextMarkerForIndex", 10);
+
+    let range = macDoc.getParameterizedAttributeValue(
+      "AXTextMarkerRangeForUnorderedTextMarkers",
+      [end, start]
+    );
+    is(stringForRange(macDoc, range), "ello good");
+  }
+);
+
+addAccessibleTask(
+  `<input id="input" value=""><a href="#">goodbye</a>`,
+  async (browser, accDoc) => {
+    let macDoc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    let input = getNativeInterface(accDoc, "input");
+
+    let range = macDoc.getParameterizedAttributeValue(
+      "AXTextMarkerRangeForUIElement",
+      input
+    );
+
+    is(stringForRange(macDoc, range), "", "string value is correct");
+  }
+);
+
+addAccessibleTask(
+  `<div role="listbox" id="box">
+    <input type="radio" name="test" role="option" title="First item"/>
+    <input type="radio" name="test" role="option" title="Second item"/>
+  </div>`,
+  async (browser, accDoc) => {
+    let box = getNativeInterface(accDoc, "box");
+    const children = box.getAttributeValue("AXChildren");
+    is(children.length, 2, "Listbox contains two items");
+    is(children[0].getAttributeValue("AXValue"), "First item");
+    is(children[1].getAttributeValue("AXValue"), "Second item");
+  }
+);
+
+addAccessibleTask(
+  `<div id="t">
+    A link <b>should</b> explain <u>clearly</u> what information the <i>reader</i> will get by clicking on that link.
+  </div>`,
+  async (browser, accDoc) => {
+    let t = getNativeInterface(accDoc, "t");
+    const children = t.getAttributeValue("AXChildren");
+    const expectedTitles = [
+      "A link ",
+      "should",
+      " explain ",
+      "clearly",
+      " what information the ",
+      "reader",
+      " will get by clicking on that link. ",
+    ];
+    is(children.length, 7, "container has seven children");
+    children.forEach((child, index) => {
+      is(child.getAttributeValue("AXValue"), expectedTitles[index]);
+    });
+  }
+);
+
+addAccessibleTask(
+  `<a href="#">link</a> <input id="input" value="hello">`,
+  async (browser, accDoc) => {
+    let macDoc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    let input = getNativeInterface(accDoc, "input");
+    let range = macDoc.getParameterizedAttributeValue(
+      "AXTextMarkerRangeForUIElement",
+      input
+    );
+
+    let firstMarkerInInput = macDoc.getParameterizedAttributeValue(
+      "AXStartTextMarkerForTextMarkerRange",
+      range
+    );
+
+    let leftWordRange = macDoc.getParameterizedAttributeValue(
+      "AXLeftWordTextMarkerRangeForTextMarker",
+      firstMarkerInInput
+    );
+    let str = macDoc.getParameterizedAttributeValue(
+      "AXStringForTextMarkerRange",
+      leftWordRange
+    );
+    is(str, "hello", "Left word at start of input should be right word");
+  }
+);
+
+addAccessibleTask(`<p id="p">hello world</p>`, async (browser, accDoc) => {
+  let macDoc = accDoc.nativeInterface.QueryInterface(
+    Ci.nsIAccessibleMacInterface
+  );
+
+  let p = getNativeInterface(accDoc, "p");
+  let range = macDoc.getParameterizedAttributeValue(
+    "AXTextMarkerRangeForUIElement",
+    p
+  );
+
+  let bounds = macDoc.getParameterizedAttributeValue(
+    "AXBoundsForTextMarkerRange",
+    range
+  );
+
+  ok(bounds.origin && bounds.size, "Returned valid bounds");
+});
diff --git a/accessible/tests/browser/mac/browser_text_input.js b/accessible/tests/browser/mac/browser_text_input.js
new file mode 100644
index 0000000000..11a9dc25f1
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_text_input.js
@@ -0,0 +1,657 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+function testValueChangedEventData(
+  macIface,
+  data,
+  expectedId,
+  expectedChangeValue,
+  expectedEditType,
+  expectedWordAtLeft
+) {
+  is(
+    data.AXTextChangeElement.getAttributeValue("AXDOMIdentifier"),
+    expectedId,
+    "Correct AXTextChangeElement"
+  );
+  is(
+    data.AXTextStateChangeType,
+    AXTextStateChangeTypeEdit,
+    "Correct AXTextStateChangeType"
+  );
+
+  let changeValues = data.AXTextChangeValues;
+  is(changeValues.length, 1, "One element in AXTextChangeValues");
+  is(
+    changeValues[0].AXTextChangeValue,
+    expectedChangeValue,
+    "Correct AXTextChangeValue"
+  );
+  is(
+    changeValues[0].AXTextEditType,
+    expectedEditType,
+    "Correct AXTextEditType"
+  );
+
+  let textMarker = changeValues[0].AXTextChangeValueStartMarker;
+  ok(textMarker, "There is a AXTextChangeValueStartMarker");
+  let range = macIface.getParameterizedAttributeValue(
+    "AXLeftWordTextMarkerRangeForTextMarker",
+    textMarker
+  );
+  let str = macIface.getParameterizedAttributeValue(
+    "AXStringForTextMarkerRange",
+    range,
+    "correct word before caret"
+  );
+  is(str, expectedWordAtLeft);
+}
+
+// Return true if the first given object a subset of the second
+function isSubset(subset, superset) {
+  if (typeof subset != "object" || typeof superset != "object") {
+    return superset == subset;
+  }
+
+  for (let [prop, val] of Object.entries(subset)) {
+    if (!isSubset(val, superset[prop])) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+function matchWebArea(expectedId, expectedInfo) {
+  return (iface, data) => {
+    if (!data) {
+      return false;
+    }
+
+    let textChangeElemID =
+      data.AXTextChangeElement.getAttributeValue("AXDOMIdentifier");
+
+    return (
+      iface.getAttributeValue("AXRole") == "AXWebArea" &&
+      textChangeElemID == expectedId &&
+      isSubset(expectedInfo, data)
+    );
+  };
+}
+
+function matchInput(expectedId, expectedInfo) {
+  return (iface, data) => {
+    if (!data) {
+      return false;
+    }
+
+    return (
+      iface.getAttributeValue("AXDOMIdentifier") == expectedId &&
+      isSubset(expectedInfo, data)
+    );
+  };
+}
+
+async function synthKeyAndTestSelectionChanged(
+  synthKey,
+  synthEvent,
+  expectedId,
+  expectedSelectionString,
+  expectedSelectionInfo
+) {
+  let selectionChangedEvents = Promise.all([
+    waitForMacEventWithInfo(
+      "AXSelectedTextChanged",
+      matchWebArea(expectedId, expectedSelectionInfo)
+    ),
+    waitForMacEventWithInfo(
+      "AXSelectedTextChanged",
+      matchInput(expectedId, expectedSelectionInfo)
+    ),
+  ]);
+
+  EventUtils.synthesizeKey(synthKey, synthEvent);
+  let [webareaEvent, inputEvent] = await selectionChangedEvents;
+  is(
+    inputEvent.data.AXTextChangeElement.getAttributeValue("AXDOMIdentifier"),
+    expectedId,
+    "Correct AXTextChangeElement"
+  );
+
+  let rangeString = inputEvent.macIface.getParameterizedAttributeValue(
+    "AXStringForTextMarkerRange",
+    inputEvent.data.AXSelectedTextMarkerRange
+  );
+  is(
+    rangeString,
+    expectedSelectionString,
+    `selection has correct value (${expectedSelectionString})`
+  );
+
+  is(
+    webareaEvent.macIface.getAttributeValue("AXDOMIdentifier"),
+    "body",
+    "Input event target is top-level WebArea"
+  );
+  rangeString = webareaEvent.macIface.getParameterizedAttributeValue(
+    "AXStringForTextMarkerRange",
+    inputEvent.data.AXSelectedTextMarkerRange
+  );
+  is(
+    rangeString,
+    expectedSelectionString,
+    `selection has correct value (${expectedSelectionString}) via top document`
+  );
+
+  return inputEvent;
+}
+
+function testSelectionEventLeftChar(event, expectedChar) {
+  const selStart = event.macIface.getParameterizedAttributeValue(
+    "AXStartTextMarkerForTextMarkerRange",
+    event.data.AXSelectedTextMarkerRange
+  );
+  const selLeft = event.macIface.getParameterizedAttributeValue(
+    "AXPreviousTextMarkerForTextMarker",
+    selStart
+  );
+  const leftCharRange = event.macIface.getParameterizedAttributeValue(
+    "AXTextMarkerRangeForUnorderedTextMarkers",
+    [selLeft, selStart]
+  );
+  const leftCharString = event.macIface.getParameterizedAttributeValue(
+    "AXStringForTextMarkerRange",
+    leftCharRange
+  );
+  is(leftCharString, expectedChar, "Left character is correct");
+}
+
+function testSelectionEventLine(event, expectedLine) {
+  const selStart = event.macIface.getParameterizedAttributeValue(
+    "AXStartTextMarkerForTextMarkerRange",
+    event.data.AXSelectedTextMarkerRange
+  );
+  const lineRange = event.macIface.getParameterizedAttributeValue(
+    "AXLineTextMarkerRangeForTextMarker",
+    selStart
+  );
+  const lineString = event.macIface.getParameterizedAttributeValue(
+    "AXStringForTextMarkerRange",
+    lineRange
+  );
+  is(lineString, expectedLine, "Line is correct");
+}
+
+async function synthKeyAndTestValueChanged(
+  synthKey,
+  synthEvent,
+  expectedId,
+  expectedTextSelectionId,
+  expectedChangeValue,
+  expectedEditType,
+  expectedWordAtLeft
+) {
+  let valueChangedEvents = Promise.all([
+    waitForMacEvent(
+      "AXSelectedTextChanged",
+      matchWebArea(expectedTextSelectionId, {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+      })
+    ),
+    waitForMacEvent(
+      "AXSelectedTextChanged",
+      matchInput(expectedTextSelectionId, {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+      })
+    ),
+    waitForMacEventWithInfo(
+      "AXValueChanged",
+      matchWebArea(expectedId, {
+        AXTextStateChangeType: AXTextStateChangeTypeEdit,
+        AXTextChangeValues: [
+          {
+            AXTextChangeValue: expectedChangeValue,
+            AXTextEditType: expectedEditType,
+          },
+        ],
+      })
+    ),
+    waitForMacEventWithInfo(
+      "AXValueChanged",
+      matchInput(expectedId, {
+        AXTextStateChangeType: AXTextStateChangeTypeEdit,
+        AXTextChangeValues: [
+          {
+            AXTextChangeValue: expectedChangeValue,
+            AXTextEditType: expectedEditType,
+          },
+        ],
+      })
+    ),
+  ]);
+
+  EventUtils.synthesizeKey(synthKey, synthEvent);
+  let [, , webareaEvent, inputEvent] = await valueChangedEvents;
+
+  testValueChangedEventData(
+    webareaEvent.macIface,
+    webareaEvent.data,
+    expectedId,
+    expectedChangeValue,
+    expectedEditType,
+    expectedWordAtLeft
+  );
+  testValueChangedEventData(
+    inputEvent.macIface,
+    inputEvent.data,
+    expectedId,
+    expectedChangeValue,
+    expectedEditType,
+    expectedWordAtLeft
+  );
+}
+
+async function focusIntoInput(accDoc, inputId, innerContainerId) {
+  let selectionId = innerContainerId ? innerContainerId : inputId;
+  let input = getNativeInterface(accDoc, inputId);
+  ok(!input.getAttributeValue("AXFocused"), "input is not focused");
+  ok(input.isAttributeSettable("AXFocused"), "input is focusable");
+  let events = Promise.all([
+    waitForMacEvent(
+      "AXFocusedUIElementChanged",
+      iface => iface.getAttributeValue("AXDOMIdentifier") == inputId
+    ),
+    waitForMacEventWithInfo(
+      "AXSelectedTextChanged",
+      matchWebArea(selectionId, {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+      })
+    ),
+    waitForMacEventWithInfo(
+      "AXSelectedTextChanged",
+      matchInput(selectionId, {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+      })
+    ),
+  ]);
+  input.setAttributeValue("AXFocused", true);
+  await events;
+}
+
+async function focusIntoInputAndType(accDoc, inputId, innerContainerId) {
+  let selectionId = innerContainerId ? innerContainerId : inputId;
+  await focusIntoInput(accDoc, inputId, innerContainerId);
+
+  async function testTextInput(
+    synthKey,
+    expectedChangeValue,
+    expectedWordAtLeft
+  ) {
+    await synthKeyAndTestValueChanged(
+      synthKey,
+      null,
+      inputId,
+      selectionId,
+      expectedChangeValue,
+      AXTextEditTypeTyping,
+      expectedWordAtLeft
+    );
+  }
+
+  await testTextInput("h", "h", "h");
+  await testTextInput("e", "e", "he");
+  await testTextInput("l", "l", "hel");
+  await testTextInput("l", "l", "hell");
+  await testTextInput("o", "o", "hello");
+  await testTextInput(" ", " ", "hello");
+  // You would expect this to be useless but this is what VO
+  // consumes. I guess it concats the inserted text data to the
+  // word to the left of the marker.
+  await testTextInput("w", "w", " ");
+  await testTextInput("o", "o", "wo");
+  await testTextInput("r", "r", "wor");
+  await testTextInput("l", "l", "worl");
+  await testTextInput("d", "d", "world");
+
+  async function testTextDelete(expectedChangeValue, expectedWordAtLeft) {
+    await synthKeyAndTestValueChanged(
+      "KEY_Backspace",
+      null,
+      inputId,
+      selectionId,
+      expectedChangeValue,
+      AXTextEditTypeDelete,
+      expectedWordAtLeft
+    );
+  }
+
+  await testTextDelete("d", "worl");
+  await testTextDelete("l", "wor");
+
+  await synthKeyAndTestSelectionChanged(
+    "KEY_ArrowLeft",
+    null,
+    selectionId,
+    "",
+    {
+      AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+      AXTextSelectionDirection: AXTextSelectionDirectionPrevious,
+      AXTextSelectionGranularity: AXTextSelectionGranularityCharacter,
+    }
+  );
+  await synthKeyAndTestSelectionChanged(
+    "KEY_ArrowLeft",
+    { shiftKey: true },
+    selectionId,
+    "o",
+    {
+      AXTextStateChangeType: AXTextStateChangeTypeSelectionExtend,
+      AXTextSelectionDirection: AXTextSelectionDirectionPrevious,
+      AXTextSelectionGranularity: AXTextSelectionGranularityCharacter,
+    }
+  );
+  await synthKeyAndTestSelectionChanged(
+    "KEY_ArrowLeft",
+    { shiftKey: true },
+    selectionId,
+    "wo",
+    {
+      AXTextStateChangeType: AXTextStateChangeTypeSelectionExtend,
+      AXTextSelectionDirection: AXTextSelectionDirectionPrevious,
+      AXTextSelectionGranularity: AXTextSelectionGranularityCharacter,
+    }
+  );
+  await synthKeyAndTestSelectionChanged(
+    "KEY_ArrowLeft",
+    null,
+    selectionId,
+    "",
+    { AXTextStateChangeType: AXTextStateChangeTypeSelectionMove }
+  );
+  await synthKeyAndTestSelectionChanged(
+    "KEY_ArrowLeft",
+    { shiftKey: true, metaKey: true },
+    selectionId,
+    "hello ",
+    {
+      AXTextStateChangeType: AXTextStateChangeTypeSelectionExtend,
+      AXTextSelectionDirection: AXTextSelectionDirectionBeginning,
+      AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+    }
+  );
+  await synthKeyAndTestSelectionChanged(
+    "KEY_ArrowLeft",
+    null,
+    selectionId,
+    "",
+    { AXTextStateChangeType: AXTextStateChangeTypeSelectionMove }
+  );
+  await synthKeyAndTestSelectionChanged(
+    "KEY_ArrowRight",
+    { shiftKey: true, altKey: true },
+    selectionId,
+    "hello",
+    {
+      AXTextStateChangeType: AXTextStateChangeTypeSelectionExtend,
+      AXTextSelectionDirection: AXTextSelectionDirectionNext,
+      AXTextSelectionGranularity: AXTextSelectionGranularityWord,
+    }
+  );
+}
+
+// Test text input
+addAccessibleTask(
+  `<a href="#">link</a> <input id="input">`,
+  async (browser, accDoc) => {
+    await focusIntoInputAndType(accDoc, "input");
+  },
+  { topLevel: true, iframe: true, remoteIframe: true }
+);
+
+// Test content editable
+addAccessibleTask(
+  `<div id="input" contentEditable="true" tabindex="0" role="textbox" aria-multiline="true"><div id="inner"><br /></div></div>`,
+  async (browser, accDoc) => {
+    const inner = getNativeInterface(accDoc, "inner");
+    const editableAncestor = inner.getAttributeValue("AXEditableAncestor");
+    is(
+      editableAncestor.getAttributeValue("AXDOMIdentifier"),
+      "input",
+      "Editable ancestor is input"
+    );
+    await focusIntoInputAndType(accDoc, "input");
+  }
+);
+
+// Test input that gets role::EDITCOMBOBOX
+addAccessibleTask(`<input type="text" id="box">`, async (browser, accDoc) => {
+  const box = getNativeInterface(accDoc, "box");
+  const editableAncestor = box.getAttributeValue("AXEditableAncestor");
+  is(
+    editableAncestor.getAttributeValue("AXDOMIdentifier"),
+    "box",
+    "Editable ancestor is box itself"
+  );
+  await focusIntoInputAndType(accDoc, "box");
+});
+
+// Test multiline caret control in a text area
+addAccessibleTask(
+  `<textarea id="input" cols="15">one two three four five six seven eight</textarea>`,
+  async (browser, accDoc) => {
+    await focusIntoInput(accDoc, "input");
+
+    await synthKeyAndTestSelectionChanged("KEY_ArrowRight", null, "input", "", {
+      AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+      AXTextSelectionDirection: AXTextSelectionDirectionNext,
+      AXTextSelectionGranularity: AXTextSelectionGranularityCharacter,
+    });
+
+    await synthKeyAndTestSelectionChanged("KEY_ArrowDown", null, "input", "", {
+      AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+      AXTextSelectionDirection: AXTextSelectionDirectionNext,
+      AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+    });
+
+    await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowLeft",
+      { metaKey: true },
+      "input",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionBeginning,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+
+    await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowRight",
+      { metaKey: true },
+      "input",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionEnd,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+  },
+  { topLevel: true, iframe: true, remoteIframe: true }
+);
+
+/**
+ * Test that the caret returns the correct marker when it is positioned after
+ * the last character (to facilitate appending text).
+ */
+addAccessibleTask(
+  `<input id="input" value="abc">`,
+  async function (browser, docAcc) {
+    await focusIntoInput(docAcc, "input");
+
+    let event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowRight",
+      null,
+      "input",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityCharacter,
+      }
+    );
+    testSelectionEventLeftChar(event, "a");
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowRight",
+      null,
+      "input",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityCharacter,
+      }
+    );
+    testSelectionEventLeftChar(event, "b");
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowRight",
+      null,
+      "input",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityCharacter,
+      }
+    );
+    testSelectionEventLeftChar(event, "c");
+  },
+  { chrome: true, topLevel: true }
+);
+
+/**
+ * Test that the caret returns the correct line when the caret is at the start
+ * of the line.
+ */
+addAccessibleTask(
+  `
+<textarea id="hard">ab
+cd
+ef
+
+gh
+</textarea>
+<div role="textbox" id="wrapped" contenteditable style="width: 1ch;">a b c</div>
+  `,
+  async function (browser, docAcc) {
+    let hard = getNativeInterface(docAcc, "hard");
+    await focusIntoInput(docAcc, "hard");
+    is(hard.getAttributeValue("AXInsertionPointLineNumber"), 0);
+    let event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowDown",
+      null,
+      "hard",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+    testSelectionEventLine(event, "cd");
+    is(hard.getAttributeValue("AXInsertionPointLineNumber"), 1);
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowDown",
+      null,
+      "hard",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+    testSelectionEventLine(event, "ef");
+    is(hard.getAttributeValue("AXInsertionPointLineNumber"), 2);
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowDown",
+      null,
+      "hard",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+    testSelectionEventLine(event, "");
+    is(hard.getAttributeValue("AXInsertionPointLineNumber"), 3);
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowDown",
+      null,
+      "hard",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+    testSelectionEventLine(event, "gh");
+    is(hard.getAttributeValue("AXInsertionPointLineNumber"), 4);
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowDown",
+      null,
+      "hard",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+    testSelectionEventLine(event, "");
+    is(hard.getAttributeValue("AXInsertionPointLineNumber"), 5);
+
+    let wrapped = getNativeInterface(docAcc, "wrapped");
+    await focusIntoInput(docAcc, "wrapped");
+    is(wrapped.getAttributeValue("AXInsertionPointLineNumber"), 0);
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowDown",
+      null,
+      "wrapped",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+    testSelectionEventLine(event, "b ");
+    is(wrapped.getAttributeValue("AXInsertionPointLineNumber"), 1);
+    event = await synthKeyAndTestSelectionChanged(
+      "KEY_ArrowDown",
+      null,
+      "wrapped",
+      "",
+      {
+        AXTextStateChangeType: AXTextStateChangeTypeSelectionMove,
+        AXTextSelectionDirection: AXTextSelectionDirectionNext,
+        AXTextSelectionGranularity: AXTextSelectionGranularityLine,
+      }
+    );
+    testSelectionEventLine(event, "c");
+    is(wrapped.getAttributeValue("AXInsertionPointLineNumber"), 2);
+  },
+  { chrome: true, topLevel: true }
+);
diff --git a/accessible/tests/browser/mac/browser_text_leaf.js b/accessible/tests/browser/mac/browser_text_leaf.js
new file mode 100644
index 0000000000..21deed6212
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_text_leaf.js
@@ -0,0 +1,83 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });
+
+/**
+ * Test accessibles aren't created for linebreaks.
+ */
+addAccessibleTask(
+  `hello<br>world`,
+  async (browser, accDoc) => {
+    let doc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+    let docChildren = doc.getAttributeValue("AXChildren");
+    is(docChildren.length, 1, "The document contains a root group");
+
+    let rootGroup = docChildren[0];
+    let children = rootGroup.getAttributeValue("AXChildren");
+    is(docChildren.length, 1, "The root group contains 2 children");
+
+    // verify first child is correct
+    is(
+      children[0].getAttributeValue("AXRole"),
+      "AXStaticText",
+      "First child is a text node"
+    );
+    is(
+      children[0].getAttributeValue("AXValue"),
+      "hello",
+      "First child is hello text"
+    );
+
+    // verify second child is correct
+    is(
+      children[1].getAttributeValue("AXRole"),
+      "AXStaticText",
+      "Second child is a text node"
+    );
+
+    is(
+      children[1].getAttributeValue("AXValue"),
+      gIsIframe && !gIsRemoteIframe ? "world" : "world ",
+      "Second child is world text"
+    );
+    // we have a trailing space in here due to bug 1577028
+    // but this appears fixed in non-remote iframes
+  },
+  { chrome: true, iframe: true, remoteIframe: true }
+);
+
+addAccessibleTask(
+  `<p id="p">hello, this is a test</p>`,
+  async (browser, accDoc) => {
+    let p = getNativeInterface(accDoc, "p");
+    let textLeaf = p.getAttributeValue("AXChildren")[0];
+    ok(textLeaf, "paragraph has a text leaf");
+
+    let str = textLeaf.getParameterizedAttributeValue(
+      "AXStringForRange",
+      NSRange(3, 6)
+    );
+
+    is(str, "lo, th", "AXStringForRange matches.");
+
+    let smallBounds = textLeaf.getParameterizedAttributeValue(
+      "AXBoundsForRange",
+      NSRange(3, 6)
+    );
+
+    let largeBounds = textLeaf.getParameterizedAttributeValue(
+      "AXBoundsForRange",
+      NSRange(3, 8)
+    );
+
+    ok(smallBounds.size[0] < largeBounds.size[0], "longer range is wider");
+  },
+  { chrome: true, iframe: true, remoteIframe: true }
+);
diff --git a/accessible/tests/browser/mac/browser_text_selection.js b/accessible/tests/browser/mac/browser_text_selection.js
new file mode 100644
index 0000000000..a914adba8e
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_text_selection.js
@@ -0,0 +1,187 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Test simple text selection
+ */
+addAccessibleTask(`<p id="p">Hello World</p>`, async (browser, accDoc) => {
+  let macDoc = accDoc.nativeInterface.QueryInterface(
+    Ci.nsIAccessibleMacInterface
+  );
+
+  let startMarker = macDoc.getAttributeValue("AXStartTextMarker");
+  let endMarker = macDoc.getAttributeValue("AXEndTextMarker");
+  let range = macDoc.getParameterizedAttributeValue(
+    "AXTextMarkerRangeForUnorderedTextMarkers",
+    [startMarker, endMarker]
+  );
+  is(stringForRange(macDoc, range), "Hello World");
+
+  let evt = waitForMacEventWithInfo("AXSelectedTextChanged", (elem, info) => {
+    return (
+      !info.AXTextStateSync &&
+      info.AXTextStateChangeType == AXTextStateChangeTypeSelectionExtend &&
+      elem.getAttributeValue("AXRole") == "AXWebArea"
+    );
+  });
+  await SpecialPowers.spawn(browser, [], () => {
+    let p = content.document.getElementById("p");
+    let r = new content.Range();
+    r.setStart(p.firstChild, 1);
+    r.setEnd(p.firstChild, 8);
+
+    let s = content.getSelection();
+    s.addRange(r);
+  });
+  await evt;
+
+  range = macDoc.getAttributeValue("AXSelectedTextMarkerRange");
+  is(stringForRange(macDoc, range), "ello Wo");
+
+  let firstWordRange = macDoc.getParameterizedAttributeValue(
+    "AXRightWordTextMarkerRangeForTextMarker",
+    startMarker
+  );
+  is(stringForRange(macDoc, firstWordRange), "Hello");
+
+  evt = waitForMacEventWithInfo("AXSelectedTextChanged", (elem, info) => {
+    return (
+      !info.AXTextStateSync &&
+      info.AXTextStateChangeType == AXTextStateChangeTypeSelectionExtend &&
+      elem.getAttributeValue("AXRole") == "AXWebArea"
+    );
+  });
+  macDoc.setAttributeValue("AXSelectedTextMarkerRange", firstWordRange);
+  await evt;
+  range = macDoc.getAttributeValue("AXSelectedTextMarkerRange");
+  is(stringForRange(macDoc, range), "Hello");
+
+  // Collapse selection
+  evt = waitForMacEventWithInfo("AXSelectedTextChanged", (elem, info) => {
+    return (
+      info.AXTextStateSync &&
+      info.AXTextStateChangeType == AXTextStateChangeTypeSelectionMove &&
+      elem.getAttributeValue("AXRole") == "AXWebArea"
+    );
+  });
+  await SpecialPowers.spawn(browser, [], () => {
+    let s = content.getSelection();
+    s.collapseToEnd();
+  });
+  await evt;
+});
+
+/**
+ * Test text selection events caused by focus change
+ */
+addAccessibleTask(
+  `<p>
+  Hello <a href="#" id="link">World</a>,
+  I <a href="#" style="user-select: none;" id="unselectable_link">love</a>
+  <button id="button">you</button></p>`,
+  async (browser, accDoc) => {
+    // Set up an AXSelectedTextChanged listener here. It will get resolved
+    // on the first non-root event it encounters, so if we test its data at the end
+    // of this test it will show us the first text-selectable object that was focused,
+    // which is "link".
+    let selTextChanged = waitForMacEvent(
+      "AXSelectedTextChanged",
+      e => e.getAttributeValue("AXDOMIdentifier") != "body"
+    );
+
+    let focusChanged = waitForMacEvent("AXFocusedUIElementChanged");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("unselectable_link").focus();
+    });
+    let focusChangedTarget = await focusChanged;
+    is(
+      focusChangedTarget.getAttributeValue("AXDOMIdentifier"),
+      "unselectable_link",
+      "Correct event target"
+    );
+
+    focusChanged = waitForMacEvent("AXFocusedUIElementChanged");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("button").focus();
+    });
+    focusChangedTarget = await focusChanged;
+    is(
+      focusChangedTarget.getAttributeValue("AXDOMIdentifier"),
+      "button",
+      "Correct event target"
+    );
+
+    focusChanged = waitForMacEvent("AXFocusedUIElementChanged");
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("link").focus();
+    });
+    focusChangedTarget = await focusChanged;
+    is(
+      focusChangedTarget.getAttributeValue("AXDOMIdentifier"),
+      "link",
+      "Correct event target"
+    );
+
+    let selTextChangedTarget = await selTextChanged;
+    is(
+      selTextChangedTarget.getAttributeValue("AXDOMIdentifier"),
+      "link",
+      "Correct event target"
+    );
+  }
+);
+
+/**
+ * Test text selection with focus change
+ */
+addAccessibleTask(
+  `<p id="p">Hello <input id="input"></p>`,
+  async (browser, accDoc) => {
+    let macDoc = accDoc.nativeInterface.QueryInterface(
+      Ci.nsIAccessibleMacInterface
+    );
+
+    let evt = waitForMacEventWithInfo("AXSelectedTextChanged", (elem, info) => {
+      return (
+        !info.AXTextStateSync &&
+        info.AXTextStateChangeType == AXTextStateChangeTypeSelectionExtend &&
+        elem.getAttributeValue("AXRole") == "AXWebArea"
+      );
+    });
+    await SpecialPowers.spawn(browser, [], () => {
+      let p = content.document.getElementById("p");
+      let r = new content.Range();
+      r.setStart(p.firstChild, 1);
+      r.setEnd(p.firstChild, 3);
+
+      let s = content.getSelection();
+      s.addRange(r);
+    });
+    await evt;
+
+    let range = macDoc.getAttributeValue("AXSelectedTextMarkerRange");
+    is(stringForRange(macDoc, range), "el");
+
+    let events = Promise.all([
+      waitForMacEvent("AXFocusedUIElementChanged"),
+      waitForMacEventWithInfo("AXSelectedTextChanged"),
+    ]);
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("input").focus();
+    });
+    let [, { data }] = await events;
+    ok(
+      data.AXTextSelectionChangedFocus,
+      "have AXTextSelectionChangedFocus in event info"
+    );
+    ok(!data.AXTextStateSync, "no AXTextStateSync in editables");
+    is(
+      data.AXTextSelectionDirection,
+      AXTextSelectionDirectionDiscontiguous,
+      "discontigous direction"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_toggle_radio_check.js b/accessible/tests/browser/mac/browser_toggle_radio_check.js
new file mode 100644
index 0000000000..1695d73b0d
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_toggle_radio_check.js
@@ -0,0 +1,304 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
+loadScripts(
+  { name: "role.js", dir: MOCHITESTS_DIR },
+  { name: "states.js", dir: MOCHITESTS_DIR }
+);
+
+/**
+ * Test input[type=checkbox]
+ */
+addAccessibleTask(
+  `<input type="checkbox" id="vehicle"><label for="vehicle"> Bike</label>`,
+  async (browser, accDoc) => {
+    let checkbox = getNativeInterface(accDoc, "vehicle");
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      0,
+      "Correct initial value"
+    );
+
+    let actions = checkbox.actionNames;
+    ok(actions.includes("AXPress"), "Has press action");
+
+    let evt = waitForMacEvent("AXValueChanged", "vehicle");
+    checkbox.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      1,
+      "Correct checked value"
+    );
+
+    evt = waitForMacEvent("AXValueChanged", "vehicle");
+    checkbox.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      0,
+      "Correct checked value"
+    );
+  }
+);
+
+/**
+ * Test aria-pressed toggle buttons
+ */
+addAccessibleTask(
+  `<button id="toggle" aria-pressed="false">toggle</button>`,
+  async (browser, accDoc) => {
+    // Set up a callback to change the toggle value
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("toggle").onclick = e => {
+        let curVal = e.target.getAttribute("aria-pressed");
+        let nextVal = curVal == "false" ? "true" : "false";
+        e.target.setAttribute("aria-pressed", nextVal);
+      };
+    });
+
+    let toggle = getNativeInterface(accDoc, "toggle");
+    await untilCacheIs(
+      () => toggle.getAttributeValue("AXValue"),
+      0,
+      "Correct initial value"
+    );
+
+    let actions = toggle.actionNames;
+    ok(actions.includes("AXPress"), "Has press action");
+
+    let evt = waitForMacEvent("AXValueChanged", "toggle");
+    toggle.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => toggle.getAttributeValue("AXValue"),
+      1,
+      "Correct checked value"
+    );
+
+    evt = waitForMacEvent("AXValueChanged", "toggle");
+    toggle.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => toggle.getAttributeValue("AXValue"),
+      0,
+      "Correct checked value"
+    );
+  }
+);
+
+/**
+ * Test aria-checked with tri state
+ */
+addAccessibleTask(
+  `<button role="checkbox" id="checkbox" aria-checked="false">toggle</button>`,
+  async (browser, accDoc) => {
+    // Set up a callback to change the toggle value
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document.getElementById("checkbox").onclick = e => {
+        const states = ["false", "true", "mixed"];
+        let currState = e.target.getAttribute("aria-checked");
+        let nextState = states[(states.indexOf(currState) + 1) % states.length];
+        e.target.setAttribute("aria-checked", nextState);
+      };
+    });
+    let checkbox = getNativeInterface(accDoc, "checkbox");
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      0,
+      "Correct initial value"
+    );
+
+    let actions = checkbox.actionNames;
+    ok(actions.includes("AXPress"), "Has press action");
+
+    let evt = waitForMacEvent("AXValueChanged", "checkbox");
+    checkbox.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      1,
+      "Correct checked value"
+    );
+
+    // Changing from checked to mixed fires two events. Make sure we wait until
+    // the second so we're asserting based on the latest state.
+    evt = waitForMacEvent("AXValueChanged", (iface, data) => {
+      return (
+        iface.getAttributeValue("AXDOMIdentifier") == "checkbox" &&
+        iface.getAttributeValue("AXValue") == 2
+      );
+    });
+    checkbox.performAction("AXPress");
+    await evt;
+    is(checkbox.getAttributeValue("AXValue"), 2, "Correct checked value");
+  }
+);
+
+/**
+ * Test input[type=radio]
+ */
+addAccessibleTask(
+  `<input type="radio" id="huey" name="drone" value="huey" checked>
+   <label for="huey">Huey</label>
+   <input type="radio" id="dewey" name="drone" value="dewey">
+   <label for="dewey">Dewey</label>`,
+  async (browser, accDoc) => {
+    let huey = getNativeInterface(accDoc, "huey");
+    await untilCacheIs(
+      () => huey.getAttributeValue("AXValue"),
+      1,
+      "Correct initial value for huey"
+    );
+
+    let dewey = getNativeInterface(accDoc, "dewey");
+    await untilCacheIs(
+      () => dewey.getAttributeValue("AXValue"),
+      0,
+      "Correct initial value for dewey"
+    );
+
+    let actions = dewey.actionNames;
+    ok(actions.includes("AXPress"), "Has press action");
+
+    let evt = Promise.all([
+      waitForMacEvent("AXValueChanged", "huey"),
+      waitForMacEvent("AXValueChanged", "dewey"),
+    ]);
+    dewey.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => dewey.getAttributeValue("AXValue"),
+      1,
+      "Correct checked value for dewey"
+    );
+    await untilCacheIs(
+      () => huey.getAttributeValue("AXValue"),
+      0,
+      "Correct checked value for huey"
+    );
+  }
+);
+
+/**
+ * Test role=switch
+ */
+addAccessibleTask(
+  `<div role="switch" aria-checked="false" id="sw">hello</div>`,
+  async (browser, accDoc) => {
+    let sw = getNativeInterface(accDoc, "sw");
+    await untilCacheIs(
+      () => sw.getAttributeValue("AXValue"),
+      0,
+      "Initially switch is off"
+    );
+    is(sw.getAttributeValue("AXRole"), "AXCheckBox", "Has correct role");
+    is(sw.getAttributeValue("AXSubrole"), "AXSwitch", "Has correct subrole");
+
+    let stateChanged = Promise.all([
+      waitForMacEvent("AXValueChanged", "sw"),
+      waitForStateChange("sw", STATE_CHECKED, true),
+    ]);
+
+    // We should get a state change event, and a value change.
+    await SpecialPowers.spawn(browser, [], () => {
+      content.document
+        .getElementById("sw")
+        .setAttribute("aria-checked", "true");
+    });
+
+    await stateChanged;
+
+    await untilCacheIs(
+      () => sw.getAttributeValue("AXValue"),
+      1,
+      "Switch is now on"
+    );
+  }
+);
+
+/**
+ * Test input[type=checkbox] with role=menuitemcheckbox
+ */
+addAccessibleTask(
+  `<input type="checkbox" role="menuitemcheckbox" id="vehicle"><label for="vehicle"> Bike</label>`,
+  async (browser, accDoc) => {
+    let checkbox = getNativeInterface(accDoc, "vehicle");
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      0,
+      "Correct initial value"
+    );
+
+    let actions = checkbox.actionNames;
+    ok(actions.includes("AXPress"), "Has press action");
+
+    let evt = waitForMacEvent("AXValueChanged", "vehicle");
+    checkbox.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      1,
+      "Correct checked value"
+    );
+
+    evt = waitForMacEvent("AXValueChanged", "vehicle");
+    checkbox.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => checkbox.getAttributeValue("AXValue"),
+      0,
+      "Correct checked value"
+    );
+  }
+);
+
+/**
+ * Test input[type=radio] with role=menuitemradio
+ */
+addAccessibleTask(
+  `<input type="radio" role="menuitemradio" id="huey" name="drone" value="huey" checked>
+   <label for="huey">Huey</label>
+   <input type="radio" role="menuitemradio" id="dewey" name="drone" value="dewey">
+   <label for="dewey">Dewey</label>`,
+  async (browser, accDoc) => {
+    let huey = getNativeInterface(accDoc, "huey");
+    await untilCacheIs(
+      () => huey.getAttributeValue("AXValue"),
+      1,
+      "Correct initial value for huey"
+    );
+
+    let dewey = getNativeInterface(accDoc, "dewey");
+    await untilCacheIs(
+      () => dewey.getAttributeValue("AXValue"),
+      0,
+      "Correct initial value for dewey"
+    );
+
+    let actions = dewey.actionNames;
+    ok(actions.includes("AXPress"), "Has press action");
+
+    let evt = Promise.all([
+      waitForMacEvent("AXValueChanged", "huey"),
+      waitForMacEvent("AXValueChanged", "dewey"),
+    ]);
+    dewey.performAction("AXPress");
+    await evt;
+    await untilCacheIs(
+      () => dewey.getAttributeValue("AXValue"),
+      1,
+      "Correct checked value for dewey"
+    );
+    await untilCacheIs(
+      () => huey.getAttributeValue("AXValue"),
+      0,
+      "Correct checked value for huey"
+    );
+  }
+);
diff --git a/accessible/tests/browser/mac/browser_webarea.js b/accessible/tests/browser/mac/browser_webarea.js
new file mode 100644
index 0000000000..ac6122de14
--- /dev/null
+++ b/accessible/tests/browser/mac/browser_webarea.js
@@ -0,0 +1,77 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* import-globals-from ../../mochitest/role.js */
+loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });
+
+// Test web area role and AXLoadComplete event
+addAccessibleTask(``, async (browser, accDoc) => {
+  let evt = waitForMacEvent("AXLoadComplete", (iface, data) => {
+    return iface.getAttributeValue("AXDescription") == "webarea test";
+  });
+  await SpecialPowers.spawn(browser, [], () => {
+    content.location = "data:text/html,<title>webarea test</title>";
+  });
+  let doc = await evt;
+
+  is(
+    doc.getAttributeValue("AXRole"),
+    "AXWebArea",
+    "document has AXWebArea role"
+  );
+  is(doc.getAttributeValue("AXValue"), "", "document has no AXValue");
+  is(doc.getAttributeValue("AXTitle"), null, "document has no AXTitle");
+
+  is(doc.getAttributeValue("AXLoaded"), 1, "document has finished loading");
+});
+
+// Test iframe web area role and AXLayoutComplete event
+addAccessibleTask(`<title>webarea test</title>`, async (browser, accDoc) => {
+  // If the iframe loads before the top level document finishes loading, we'll
+  // get both an AXLayoutComplete event for the iframe and an AXLoadComplete
+  // event for the document. Otherwise, if the iframe loads after the
+  // document, we'll get one AXLoadComplete event.
+  let eventPromise = Promise.race([
+    waitForMacEvent("AXLayoutComplete", (iface, data) => {
+      return iface.getAttributeValue("AXDescription") == "iframe document";
+    }),
+    waitForMacEvent("AXLoadComplete", (iface, data) => {
+      return iface.getAttributeValue("AXDescription") == "webarea test";
+    }),
+  ]);
+  await SpecialPowers.spawn(browser, [], () => {
+    const iframe = content.document.createElement("iframe");
+    iframe.src = "data:text/html,<title>iframe document</title>hello world";
+    content.document.body.appendChild(iframe);
+  });
+  let doc = await eventPromise;
+
+  if (doc.getAttributeValue("AXTitle")) {
+    // iframe should have no title, so if we get a title here
+    // we've got the main document and need to get the iframe from
+    // the main doc
+    doc = doc.getAttributeValue("AXChildren")[0];
+  }
+
+  is(
+    doc.getAttributeValue("AXRole"),
+    "AXWebArea",
+    "iframe document has AXWebArea role"
+  );
+  is(doc.getAttributeValue("AXValue"), "", "iframe document has no AXValue");
+  is(doc.getAttributeValue("AXTitle"), null, "iframe document has no AXTitle");
+  is(
+    doc.getAttributeValue("AXDescription"),
+    "iframe document",
+    "test has correct label"
+  );
+
+  is(
+    doc.getAttributeValue("AXLoaded"),
+    1,
+    "iframe document has finished loading"
+  );
+});
diff --git a/accessible/tests/browser/mac/doc_aria_tabs.html b/accessible/tests/browser/mac/doc_aria_tabs.html
new file mode 100644
index 0000000000..0c8f2afd6f
--- /dev/null
+++ b/accessible/tests/browser/mac/doc_aria_tabs.html
@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<html><head>
+  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
+  <meta charset="utf-8">
+
+  <style type="text/css">
+    .tabs {
+      padding: 1em;
+    }
+
+    [role="tablist"] {
+      margin-bottom: -1px;
+    }
+
+    [role="tab"] {
+      position: relative;
+      z-index: 1;
+      background: white;
+      border-radius: 5px 5px 0 0;
+      border: 1px solid grey;
+      border-bottom: 0;
+      padding: 0.2em;
+    }
+
+    [role="tab"][aria-selected="true"] {
+      z-index: 3;
+    }
+
+    [role="tabpanel"] {
+      position: relative;
+      padding: 0 0.5em 0.5em 0.7em;
+      border: 1px solid grey;
+      border-radius: 0 0 5px 5px;
+      background: white;
+      z-index: 2;
+    }
+
+    [role="tabpanel"]:focus {
+      border-color: orange;
+      outline: 1px solid orange;
+    }
+  </style>
+  <script>
+    'use strict';
+    /* exported changeTabs */
+    function changeTabs(target) {
+      const parent = target.parentNode;
+      const grandparent = parent.parentNode;
+
+      // Remove all current selected tabs
+      parent
+        .querySelectorAll('[aria-selected="true"]')
+        .forEach(t => t.setAttribute("aria-selected", false));
+
+      // Set this tab as selected
+      target.setAttribute("aria-selected", true);
+
+      // Hide all tab panels
+      grandparent
+        .querySelectorAll('[role="tabpanel"]')
+        .forEach(p => (p.hidden = true));
+
+      // Show the selected panel
+      grandparent.parentNode
+        .querySelector(`#${target.getAttribute("aria-controls")}`)
+        .removeAttribute("hidden");
+    }
+  </script>
+  <title>ARIA: tab role - Example - code sample</title>
+</head>
+<body id="body">
+
+  <div class="tabs">
+    <div id="tablist" role="tablist" aria-label="Sample Tabs">
+      <button onclick="changeTabs(this)" role="tab" aria-selected="true" aria-controls="panel-1" id="tab-1">
+        First Tab
+      </button>
+      <button onclick="changeTabs(this)" role="tab" aria-selected="false" aria-controls="panel-2" id="tab-2">
+        Second Tab
+      </button>
+      <button onclick="changeTabs(this)" role="tab" aria-selected="false" aria-controls="panel-3" id="tab-3">
+        Third Tab
+      </button>
+    </div>
+    <div id="panel-1" role="tabpanel" tabindex="0" aria-labelledby="tab-1">
+      <p>Content for the first panel</p>
+    </div>
+    <div id="panel-2" role="tabpanel" tabindex="0" aria-labelledby="tab-2" hidden="">
+      <p>Content for the second panel</p>
+    </div>
+    <div id="panel-3" role="tabpanel" tabindex="0" aria-labelledby="tab-3" hidden="">
+      <p>Content for the third panel</p>
+    </div>
+  </div>
+</body></html>
diff --git a/accessible/tests/browser/mac/doc_menulist.xhtml b/accessible/tests/browser/mac/doc_menulist.xhtml
new file mode 100644
index 0000000000..d6751bc8f4
--- /dev/null
+++ b/accessible/tests/browser/mac/doc_menulist.xhtml
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+
+<window
+    xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <hbox>
+    <label control="defaultZoom" value="Zoom"/>
+    <hbox>
+      <menulist id="defaultZoom">
+        <menupopup>
+          <menuitem label="50%" value="50"/>
+          <menuitem label="100%" value="100"/>
+          <menuitem label="150%" value="150"/>
+          <menuitem label="200%" value="200"/>
+        </menupopup>
+      </menulist>
+    </hbox>
+  </hbox>
+</window>
diff --git a/accessible/tests/browser/mac/doc_rich_listbox.xhtml b/accessible/tests/browser/mac/doc_rich_listbox.xhtml
new file mode 100644
index 0000000000..3acaf3bff8
--- /dev/null
+++ b/accessible/tests/browser/mac/doc_rich_listbox.xhtml
@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+
+<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <richlistbox id="categories">
+    <richlistitem id="general">
+      <label value="general"/>
+    </richlistitem>
+
+    <richlistitem id="home">
+      <label value="home"/>
+    </richlistitem>
+
+    <richlistitem id="search">
+      <label value="search"/>
+    </richlistitem>
+
+    <richlistitem id="privacy">
+      <label value="privacy"/>
+    </richlistitem>
+  </richlistbox>
+</window>
diff --git a/accessible/tests/browser/mac/doc_textmarker_test.html b/accessible/tests/browser/mac/doc_textmarker_test.html
new file mode 100644
index 0000000000..9584d28e09
--- /dev/null
+++ b/accessible/tests/browser/mac/doc_textmarker_test.html
@@ -0,0 +1,2427 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
+    <meta charset="utf-8">
+  </head>
+  <body id="body">
+    <p>Bob Loblaw Lobs Law Bomb</p>
+    <p>I love all of my <a href="#">children</a> equally</p>
+    <p>This is the <b>best</b> free scr<a href="#">apbook</a>ing class I have ever taken</p>
+    <ul>
+      <li>Fried cheese with club sauce</li>
+      <li>Popcorn shrimp with club sauce</li>
+      <li>Chicken fingers with <i>spicy</i> club sauce</li>
+    </ul>
+    <ul style="list-style: none;"><li>Do not order the Skip's Scramble</li></ul>
+    <p style="width: 1rem">These are my awards, Mother. From Army.</p>
+    <p>I <input value="deceived you">, mom.</p>
+    <script>
+      "use strict";
+      // eslint-disable-next-line no-unused-vars
+      function getExpected(useNewSegmenter, stopAtPunctuation) {
+        return [
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Bob", "Bob"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Bob", "Bob"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Bob", "Bob"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Bob", " "],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: [" ", "Loblaw"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Loblaw", "Loblaw"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Loblaw", "Loblaw"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Loblaw", "Loblaw"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Loblaw", "Loblaw"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Loblaw", "Loblaw"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Loblaw", " "],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: [" ", "Lobs"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Lobs", "Lobs"],
+          element: ["AXStaticText",
+                    "Bob Loblaw Lobs Law Bomb",
+                    "Bob Loblaw Lobs Law Bomb"] },
+        { style: "Bob Loblaw Lobs Law Bomb",
+          paragraph: "Bob Loblaw Lobs Law Bomb",
+          lines: ["Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb",
+                  "Bob Loblaw Lobs Law Bomb"],
+          words: ["Lobs", "Lobs"],
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                  "\u2022 Popcorn shrimp with club sauce"],
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
+        { style: "\u2022 Popcorn shrimp with club sauce",
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+                  "\u2022 Popcorn shrimp with club sauce"],
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                  "\u2022 Popcorn shrimp with club sauce"],
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                  "\u2022 Popcorn shrimp with club sauce"],
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+                    "Popcorn shrimp with club sauce",
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+                    "Popcorn shrimp with club sauce",
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+                    "Popcorn shrimp with club sauce",
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+                    "\u2022 Popcorn shrimp with club sauce"] },
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+          element: ["AXStaticText",
+                    "Popcorn shrimp with club sauce",
+                    "\u2022 Popcorn shrimp with club sauce"] },
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+          paragraph: "\u2022 Chicken fingers with spicy club sauce",
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+          element: ["AXStaticText",
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+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "These are my awards, Mother. From Army.",
+          paragraph: "These are my awards, Mother. From Army.",
+          lines: ["From ", "From ", "From "],
+          words: ["From", " "],
+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "These are my awards, Mother. From Army.",
+          paragraph: "These are my awards, Mother. From Army.",
+          lines: ["Army.", "From ", "Army."],
+          words: [" ", "Army."],
+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "These are my awards, Mother. From Army.",
+          paragraph: "These are my awards, Mother. From Army.",
+          lines: ["Army.", "Army.", "Army."],
+          words: ["Army.", "Army."],
+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "These are my awards, Mother. From Army.",
+          paragraph: "These are my awards, Mother. From Army.",
+          lines: ["Army.", "Army.", "Army."],
+          words: ["Army.", "Army."],
+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "These are my awards, Mother. From Army.",
+          paragraph: "These are my awards, Mother. From Army.",
+          lines: ["Army.", "Army.", "Army."],
+          words: ["Army.", "Army."],
+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "These are my awards, Mother. From Army.",
+          paragraph: "These are my awards, Mother. From Army.",
+          lines: ["Army.", "Army.", "Army."],
+          words: ["Army.", "Army."],
+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "These are my awards, Mother. From Army.",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "Army.", "I deceived you, mom."],
+          words: ["Army.", ""],
+          element: ["AXStaticText",
+                    "These are my awards, Mother. From Army.",
+                    "These are my awards, Mother. From Army."] },
+        { style: "I ",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: ["I", " "],
+          element: ["AXStaticText", "I ", "I "] },
+        { style: "I ",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXStaticText", "I ", "I "] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", "deceived"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["deceived", " "],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: [" ", "you"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["you", "you"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "deceived you",
+          lines: ["deceived you", "deceived you", "deceived you"],
+          words: ["you", "you"],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: "deceived you",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: ["", ""],
+          element: ["AXTextField", "deceived you", "deceived you"] },
+        { style: ", mom.",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: [",", " "],
+          element: ["AXStaticText", ", mom.", ", mom."] },
+        { style: ", mom.",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: [" ", "mom."],
+          element: ["AXStaticText", ", mom.", ", mom."] },
+        { style: ", mom.",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: ["mom.", "mom."],
+          element: ["AXStaticText", ", mom.", ", mom."] },
+        { style: ", mom.",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: ["mom.", "mom."],
+          element: ["AXStaticText", ", mom.", ", mom."] },
+        { style: ", mom.",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: ["mom.", "mom."],
+          element: ["AXStaticText", ", mom.", ", mom."] },
+        { style: ", mom.",
+          paragraph: "I deceived you, mom.",
+          lines: ["I deceived you, mom.", "I deceived you, mom.", "I deceived you, mom."],
+          words: ["mom.", ""],
+          element: ["AXStaticText", ", mom.", ", mom."] }];
+      }
+    </script>
+  </body>
+</html>
diff --git a/accessible/tests/browser/mac/doc_tree.xhtml b/accessible/tests/browser/mac/doc_tree.xhtml
new file mode 100644
index 0000000000..d043fa8923
--- /dev/null
+++ b/accessible/tests/browser/mac/doc_tree.xhtml
@@ -0,0 +1,59 @@
+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
+
+<window
+    xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <tree id="tree" hidecolumnpicker="true">
+    <treecols>
+      <treecol primary="true" label="Groceries"/>
+    </treecols>
+    <treechildren id="internalTree">
+      <treeitem id="fruits" container="true" open="true">
+        <treerow>
+          <treecell label="Fruits"/>
+        </treerow>
+        <treechildren>
+          <treeitem id="apple">
+            <treerow>
+              <treecell label="Apple"/>
+            </treerow>
+          </treeitem>
+          <treeitem id="orange">
+            <treerow>
+              <treecell label="Orange"/>
+            </treerow>
+          </treeitem>
+        </treechildren>
+      </treeitem>
+      <treeitem id="veggies" container="true" open="true">
+        <treerow>
+          <treecell label="Veggies"/>
+        </treerow>
+        <treechildren>
+          <treeitem id="greenVeggies" container="true" open="true">
+            <treerow>
+              <treecell label="Green Veggies"/>
+            </treerow>
+            <treechildren>
+              <treeitem id="spinach">
+                <treerow>
+                  <treecell label="Spinach"/>
+                </treerow>
+              </treeitem>
+              <treeitem id="peas">
+                <treerow>
+                  <treecell label="Peas"/>
+                </treerow>
+              </treeitem>
+            </treechildren>
+          </treeitem>
+          <treeitem id="squash">
+            <treerow>
+              <treecell label="Squash"/>
+            </treerow>
+          </treeitem>
+        </treechildren>
+      </treeitem>
+    </treechildren>
+  </tree>
+</window>
diff --git a/accessible/tests/browser/mac/head.js b/accessible/tests/browser/mac/head.js
new file mode 100644
index 0000000000..f33f86288b
--- /dev/null
+++ b/accessible/tests/browser/mac/head.js
@@ -0,0 +1,133 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* exported getNativeInterface, waitForMacEventWithInfo, waitForMacEvent, waitForStateChange,
+   NSRange, NSDictionary, stringForRange, AXTextStateChangeTypeEdit,
+   AXTextEditTypeDelete, AXTextEditTypeTyping, AXTextStateChangeTypeSelectionMove,
+   AXTextStateChangeTypeSelectionExtend, AXTextSelectionDirectionUnknown,
+   AXTextSelectionDirectionPrevious, AXTextSelectionDirectionNext,
+   AXTextSelectionDirectionDiscontiguous, AXTextSelectionGranularityUnknown,
+   AXTextSelectionDirectionBeginning, AXTextSelectionDirectionEnd,
+   AXTextSelectionGranularityCharacter, AXTextSelectionGranularityWord,
+   AXTextSelectionGranularityLine */
+
+// Load the shared-head file first.
+Services.scriptloader.loadSubScript(
+  "chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js",
+  this
+);
+
+// Loading and common.js from accessible/tests/mochitest/ for all tests, as
+// well as promisified-events.js.
+loadScripts(
+  { name: "common.js", dir: MOCHITESTS_DIR },
+  { name: "promisified-events.js", dir: MOCHITESTS_DIR }
+);
+
+// AXTextStateChangeType enum values
+const AXTextStateChangeTypeEdit = 1;
+const AXTextStateChangeTypeSelectionMove = 2;
+const AXTextStateChangeTypeSelectionExtend = 3;
+
+// AXTextEditType enum values
+const AXTextEditTypeDelete = 1;
+const AXTextEditTypeTyping = 3;
+
+// AXTextSelectionDirection enum values
+const AXTextSelectionDirectionUnknown = 0;
+const AXTextSelectionDirectionBeginning = 1;
+const AXTextSelectionDirectionEnd = 2;
+const AXTextSelectionDirectionPrevious = 3;
+const AXTextSelectionDirectionNext = 4;
+const AXTextSelectionDirectionDiscontiguous = 5;
+
+// AXTextSelectionGranularity enum values
+const AXTextSelectionGranularityUnknown = 0;
+const AXTextSelectionGranularityCharacter = 1;
+const AXTextSelectionGranularityWord = 2;
+const AXTextSelectionGranularityLine = 3;
+
+function getNativeInterface(accDoc, id) {
+  return findAccessibleChildByID(accDoc, id).nativeInterface.QueryInterface(
+    Ci.nsIAccessibleMacInterface
+  );
+}
+
+function waitForMacEventWithInfo(notificationType, filter) {
+  let filterFunc = (macIface, data) => {
+    if (!filter) {
+      return true;
+    }
+
+    if (typeof filter == "function") {
+      return filter(macIface, data);
+    }
+
+    return macIface.getAttributeValue("AXDOMIdentifier") == filter;
+  };
+
+  return new Promise(resolve => {
+    let eventObserver = {
+      observe(subject, topic, data) {
+        let macEvent = subject.QueryInterface(Ci.nsIAccessibleMacEvent);
+        if (
+          data === notificationType &&
+          filterFunc(macEvent.macIface, macEvent.data)
+        ) {
+          Services.obs.removeObserver(this, "accessible-mac-event");
+          resolve(macEvent);
+        }
+      },
+    };
+    Services.obs.addObserver(eventObserver, "accessible-mac-event");
+  });
+}
+
+function waitForMacEvent(notificationType, filter) {
+  return waitForMacEventWithInfo(notificationType, filter).then(
+    e => e.macIface
+  );
+}
+
+function NSRange(location, length) {
+  return {
+    valueType: "NSRange",
+    value: [location, length],
+  };
+}
+
+function NSDictionary(dict) {
+  return {
+    objectType: "NSDictionary",
+    object: dict,
+  };
+}
+
+function stringForRange(macDoc, range) {
+  if (!range) {
+    return "";
+  }
+
+  let str = macDoc.getParameterizedAttributeValue(
+    "AXStringForTextMarkerRange",
+    range
+  );
+
+  let attrStr = macDoc.getParameterizedAttributeValue(
+    "AXAttributedStringForTextMarkerRange",
+    range
+  );
+
+  // This is a fly-by test to make sure our attributed strings
+  // always match our flat strings.
+  is(
+    attrStr.map(({ string }) => string).join(""),
+    str,
+    "attributed text matches non-attributed text"
+  );
+
+  return str;
+}