Merging upstream version 125.0.1.

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

33 files changed, 177 insertions, 270 deletions

diff --git a/dom/tests/browser/browser_ConsoleStorageAPITests.js b/dom/tests/browser/browser_ConsoleStorageAPITests.js
index f28db48a91..ee3e9e3f52 100644
--- a/dom/tests/browser/browser_ConsoleStorageAPITests.js
+++ b/dom/tests/browser/browser_ConsoleStorageAPITests.js
@@ -28,14 +28,14 @@ add_task(async function () {
   var tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, TEST_URI);
   var browser = gBrowser.selectedBrowser;
 
-  const windowId = await ContentTask.spawn(browser, null, async function (opt) {
+  const windowId = await ContentTask.spawn(browser, null, async function () {
     let ConsoleAPIStorage = Cc["@mozilla.org/consoleAPI-storage;1"].getService(
       Ci.nsIConsoleAPIStorage
     );
 
     let observerPromise = new Promise(resolve => {
       let apiCallCount = 0;
-      function observe(aSubject) {
+      function observe() {
         apiCallCount++;
         info(`Received ${apiCallCount} console log events`);
         if (apiCallCount == 4) {
diff --git a/dom/tests/browser/browser_ConsoleStoragePBTest_perwindowpb.js b/dom/tests/browser/browser_ConsoleStoragePBTest_perwindowpb.js
index 38f85ef5b1..623e509702 100644
--- a/dom/tests/browser/browser_ConsoleStoragePBTest_perwindowpb.js
+++ b/dom/tests/browser/browser_ConsoleStoragePBTest_perwindowpb.js
@@ -33,7 +33,7 @@ function test() {
   function doTest(aIsPrivateMode, aWindow, aCallback) {
     BrowserTestUtils.browserLoaded(aWindow.gBrowser.selectedBrowser).then(
       () => {
-        function observe(aSubject) {
+        function observe() {
           afterEvents = ConsoleAPIStorage.getEvents(innerID);
           is(
             beforeEvents.length == afterEvents.length - 1,
diff --git a/dom/tests/browser/browser_bug1004814.js b/dom/tests/browser/browser_bug1004814.js
index 789709a8d7..eb2272285f 100644
--- a/dom/tests/browser/browser_bug1004814.js
+++ b/dom/tests/browser/browser_bug1004814.js
@@ -8,7 +8,7 @@ add_task(async function () {
     "http://example.com/browser/dom/tests/browser/test_bug1004814.html";
 
   await BrowserTestUtils.withNewTab(TEST_URI, async aBrowser => {
-    let duration = await SpecialPowers.spawn(aBrowser, [], function (opts) {
+    let duration = await SpecialPowers.spawn(aBrowser, [], function () {
       const ConsoleAPIStorage = Cc[
         "@mozilla.org/consoleAPI-storage;1"
       ].getService(Ci.nsIConsoleAPIStorage);
diff --git a/dom/tests/browser/browser_bug1236512.js b/dom/tests/browser/browser_bug1236512.js
index 66d58ab132..c7d9f14a66 100644
--- a/dom/tests/browser/browser_bug1236512.js
+++ b/dom/tests/browser/browser_bug1236512.js
@@ -42,7 +42,7 @@ async function waitContentVisibilityChange(aIsHidden, aBrowser) {
         content.document,
         "visibilitychange",
         true /* capture */,
-        aEvent => {
+        () => {
           info(
             `visibilitychange: ${content.document.hidden} ${content.document.visibilityState}`
           );
@@ -71,7 +71,7 @@ add_task(async function () {
     winTest,
     "resize",
     false,
-    e => {
+    () => {
       return winTest.innerHeight <= 500 && winTest.innerWidth <= 500;
     }
   );
diff --git a/dom/tests/browser/browser_bug1238427.js b/dom/tests/browser/browser_bug1238427.js
index 60cb383e03..6e599b7b56 100644
--- a/dom/tests/browser/browser_bug1238427.js
+++ b/dom/tests/browser/browser_bug1238427.js
@@ -31,7 +31,7 @@ add_task(async function () {
       gBrowser,
       url: TEST_URI,
     },
-    function (browser) {
+    function () {
       /* ... */
     }
   );
diff --git a/dom/tests/browser/browser_bug1563629.js b/dom/tests/browser/browser_bug1563629.js
index afbf5970d0..b5637ac84d 100644
--- a/dom/tests/browser/browser_bug1563629.js
+++ b/dom/tests/browser/browser_bug1563629.js
@@ -10,7 +10,7 @@ const URL1 = `https://example.com/${PATH}`;
 const URL2 = `https://example.org/${PATH}`;
 
 function listenForCrash(win) {
-  function listener(event) {
+  function listener() {
     ok(false, "a crash occurred");
   }
 
diff --git a/dom/tests/browser/browser_form_associated_custom_elements_validity.js b/dom/tests/browser/browser_form_associated_custom_elements_validity.js
index 3765405735..da7c1ed263 100644
--- a/dom/tests/browser/browser_form_associated_custom_elements_validity.js
+++ b/dom/tests/browser/browser_form_associated_custom_elements_validity.js
@@ -109,3 +109,50 @@ add_task(async function form_report_validity() {
     }
   );
 });
+
+add_task(async function no_validation_anchor() {
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: `data:text/html,<my-control tabindex=0>custom elements</my-control>`,
+    },
+    async function (aBrowser) {
+      let promisePopupShown = BrowserTestUtils.waitForEvent(
+        window,
+        "popupshown"
+      );
+
+      let message = "valueMissing message";
+      await SpecialPowers.spawn(aBrowser, [message], function (aMessage) {
+        class MyControl extends content.HTMLElement {
+          static get formAssociated() {
+            return true;
+          }
+          constructor() {
+            super();
+            let internals = this.attachInternals();
+            internals.setValidity({ valueMissing: true }, aMessage);
+            internals.reportValidity();
+          }
+        }
+        content.customElements.define("my-control", MyControl);
+
+        let myControl = content.document.querySelector("my-control");
+        content.customElements.upgrade(myControl);
+      });
+      await promisePopupShown;
+
+      let invalidFormPopup =
+        window.document.getElementById("invalid-form-popup");
+      is(invalidFormPopup.state, "open", "invalid-form-popup should be opened");
+      is(invalidFormPopup.firstChild.textContent, message, "check message");
+
+      let promisePopupHidden = BrowserTestUtils.waitForEvent(
+        invalidFormPopup,
+        "popuphidden"
+      );
+      invalidFormPopup.hidePopup();
+      await promisePopupHidden;
+    }
+  );
+});
diff --git a/dom/tests/browser/browser_localStorage_privatestorageevent.js b/dom/tests/browser/browser_localStorage_privatestorageevent.js
index 7c81fadf2d..22b948a73d 100644
--- a/dom/tests/browser/browser_localStorage_privatestorageevent.js
+++ b/dom/tests/browser/browser_localStorage_privatestorageevent.js
@@ -37,43 +37,43 @@ add_task(async function () {
   var pubBrowser = gBrowser.getBrowserForTab(pubTab);
 
   // Check if pubWin can see privWin's storage events
-  await SpecialPowers.spawn(pubBrowser, [], function (opts) {
+  await SpecialPowers.spawn(pubBrowser, [], function () {
     content.window.gotStorageEvent = false;
-    content.window.addEventListener("storage", ev => {
+    content.window.addEventListener("storage", () => {
       content.window.gotStorageEvent = true;
     });
   });
 
-  await SpecialPowers.spawn(privBrowser, [], function (opts) {
+  await SpecialPowers.spawn(privBrowser, [], function () {
     content.window.localStorage.key = "ablooabloo";
   });
 
-  let pubSaw = await SpecialPowers.spawn(pubBrowser, [], function (opts) {
+  let pubSaw = await SpecialPowers.spawn(pubBrowser, [], function () {
     return content.window.gotStorageEvent;
   });
 
   ok(!pubSaw, "pubWin shouldn't be able to see privWin's storage events");
 
-  await SpecialPowers.spawn(privBrowser, [], function (opts) {
+  await SpecialPowers.spawn(privBrowser, [], function () {
     content.window.gotStorageEvent = false;
-    content.window.addEventListener("storage", ev => {
+    content.window.addEventListener("storage", () => {
       content.window.gotStorageEvent = true;
     });
   });
 
   // Check if privWin can see pubWin's storage events
-  await SpecialPowers.spawn(privBrowser, [], function (opts) {
+  await SpecialPowers.spawn(privBrowser, [], function () {
     content.window.gotStorageEvent = false;
-    content.window.addEventListener("storage", ev => {
+    content.window.addEventListener("storage", () => {
       content.window.gotStorageEvent = true;
     });
   });
 
-  await SpecialPowers.spawn(pubBrowser, [], function (opts) {
+  await SpecialPowers.spawn(pubBrowser, [], function () {
     content.window.localStorage.key = "ablooabloo";
   });
 
-  let privSaw = await SpecialPowers.spawn(privBrowser, [], function (opts) {
+  let privSaw = await SpecialPowers.spawn(privBrowser, [], function () {
     return content.window.gotStorageEvent;
   });
 
diff --git a/dom/tests/browser/browser_persist_cookies.js b/dom/tests/browser/browser_persist_cookies.js
index 282ad22060..60a70d6e88 100644
--- a/dom/tests/browser/browser_persist_cookies.js
+++ b/dom/tests/browser/browser_persist_cookies.js
@@ -13,7 +13,7 @@ const TEST_PATH2 = getRootDirectory(gTestPath).replace(
 );
 
 var MockFilePicker = SpecialPowers.MockFilePicker;
-MockFilePicker.init(window);
+MockFilePicker.init(window.browsingContext);
 
 registerCleanupFunction(async function () {
   info("Running the cleanup code");
diff --git a/dom/tests/browser/browser_persist_cross_origin_iframe.js b/dom/tests/browser/browser_persist_cross_origin_iframe.js
index 94a9a74af7..46457b6051 100644
--- a/dom/tests/browser/browser_persist_cross_origin_iframe.js
+++ b/dom/tests/browser/browser_persist_cross_origin_iframe.js
@@ -13,7 +13,7 @@ const TEST_PATH2 = getRootDirectory(gTestPath).replace(
 );
 
 var MockFilePicker = SpecialPowers.MockFilePicker;
-MockFilePicker.init(window);
+MockFilePicker.init(window.browsingContext);
 
 registerCleanupFunction(async function () {
   info("Running the cleanup code");
@@ -120,7 +120,7 @@ add_task(async function () {
       gTestDir = createTemporarySaveDirectory();
 
       MockFilePicker.displayDirectory = gTestDir;
-      MockFilePicker.showCallback = function (fp) {
+      MockFilePicker.showCallback = function () {
         let destFile = gTestDir.clone();
         destFile.append("first.html");
         MockFilePicker.setFiles([destFile]);
@@ -154,7 +154,7 @@ add_task(async function () {
         "second_files/image_data/dummy.png",
       ]);
 
-      MockFilePicker.showCallback = function (fp) {
+      MockFilePicker.showCallback = function () {
         let destFile = gTestDir.clone();
         destFile.append("second.html");
         MockFilePicker.setFiles([destFile]);
@@ -176,7 +176,7 @@ add_task(async function () {
         "third_files/dummy.png",
       ]);
 
-      MockFilePicker.showCallback = function (fp) {
+      MockFilePicker.showCallback = function () {
         let destFile = gTestDir.clone();
         destFile.append("third.html");
         MockFilePicker.setFiles([destFile]);
diff --git a/dom/tests/browser/browser_persist_image_accept.js b/dom/tests/browser/browser_persist_image_accept.js
index b4648a51ec..21a2096b9d 100644
--- a/dom/tests/browser/browser_persist_image_accept.js
+++ b/dom/tests/browser/browser_persist_image_accept.js
@@ -9,7 +9,7 @@ const TEST_PATH = getRootDirectory(gTestPath).replace(
 );
 
 var MockFilePicker = SpecialPowers.MockFilePicker;
-MockFilePicker.init(window);
+MockFilePicker.init(window.browsingContext);
 
 registerCleanupFunction(async function () {
   info("Running the cleanup code");
@@ -100,7 +100,7 @@ add_task(async function test_image_download() {
     });
     let httpOnModifyPromise = TestUtils.topicObserved(
       "http-on-modify-request",
-      (s, t, d) => {
+      s => {
         let channel = s.QueryInterface(Ci.nsIChannel);
         let uri = channel.URI && channel.URI.spec;
         if (!uri.endsWith("dummy.png")) {
diff --git a/dom/tests/browser/browser_persist_mixed_content_image.js b/dom/tests/browser/browser_persist_mixed_content_image.js
index d84934376d..6612e61ef1 100644
--- a/dom/tests/browser/browser_persist_mixed_content_image.js
+++ b/dom/tests/browser/browser_persist_mixed_content_image.js
@@ -9,7 +9,7 @@ const TEST_PATH = getRootDirectory(gTestPath).replace(
 );
 
 var MockFilePicker = SpecialPowers.MockFilePicker;
-MockFilePicker.init(window);
+MockFilePicker.init(window.browsingContext);
 
 registerCleanupFunction(async function () {
   info("Running the cleanup code");
diff --git a/dom/tests/browser/browser_sessionStorage_navigation.js b/dom/tests/browser/browser_sessionStorage_navigation.js
index 8598969dc8..ffe75b13fe 100644
--- a/dom/tests/browser/browser_sessionStorage_navigation.js
+++ b/dom/tests/browser/browser_sessionStorage_navigation.js
@@ -66,7 +66,7 @@ add_task(async function () {
     await SpecialPowers.spawn(
       browser,
       [ORIGIN2, key, value],
-      async (ORIGIN, key, value) => {
+      async (ORIGIN, key) => {
         is(content.window.origin, ORIGIN, `Navigate to ${ORIGIN} as expected`);
 
         let value1 = content.window.sessionStorage.getItem(key);
diff --git a/dom/tests/browser/browser_test_focus_after_modal_state.js b/dom/tests/browser/browser_test_focus_after_modal_state.js
index 2193d8fdc4..9b3d989078 100644
--- a/dom/tests/browser/browser_test_focus_after_modal_state.js
+++ b/dom/tests/browser/browser_test_focus_after_modal_state.js
@@ -33,14 +33,14 @@ add_task(async function () {
 
     return new Promise(resolve => {
       let doc = content.document.getElementById("edit").contentDocument;
-      doc.addEventListener("focus", function (event) {
+      doc.addEventListener("focus", function () {
         focusOccurred = true;
         if (blurOccurred) {
           resolve(true);
         }
       });
 
-      doc.addEventListener("blur", function (event) {
+      doc.addEventListener("blur", function () {
         blurOccurred = true;
         if (focusOccurred) {
           resolve(false);
diff --git a/dom/tests/browser/browser_windowProxy_transplant.js b/dom/tests/browser/browser_windowProxy_transplant.js
index 6b9e316968..8e6e0f8413 100644
--- a/dom/tests/browser/browser_windowProxy_transplant.js
+++ b/dom/tests/browser/browser_windowProxy_transplant.js
@@ -59,7 +59,7 @@ add_task(async function () {
           return new Promise(resolve => {
             iframe.addEventListener(
               "load",
-              event => {
+              () => {
                 info("Got an iframe load event!");
                 resolve();
               },
diff --git a/dom/tests/browser/create_webrtc_peer_connection.html b/dom/tests/browser/create_webrtc_peer_connection.html
index ee993d4892..51ca043073 100644
--- a/dom/tests/browser/create_webrtc_peer_connection.html
+++ b/dom/tests/browser/create_webrtc_peer_connection.html
@@ -19,7 +19,7 @@ window.addEventListener("message", event => {
   }
 });
 
-window.addEventListener("DOMContentLoaded", function(ev) {
+window.addEventListener("DOMContentLoaded", function() {
   document.getElementById("msg").innerText = location.host;
 });
 </script>
diff --git a/dom/tests/browser/file_postMessage_parent.html b/dom/tests/browser/file_postMessage_parent.html
index f9aa63a8c7..e9cb8a1d34 100644
--- a/dom/tests/browser/file_postMessage_parent.html
+++ b/dom/tests/browser/file_postMessage_parent.html
@@ -5,7 +5,7 @@
   var winID = SpecialPowers.wrap(this).windowGlobalChild.innerWindowId;
 
   var observer = {
-    observe(subject, topic) {
+    observe(subject) {
       var currID = SpecialPowers.wrap(subject).QueryInterface(SpecialPowers.Ci.nsISupportsPRUint64).data;
       if (currID != winID) {
         return;
diff --git a/dom/tests/browser/geo_leak_test.html b/dom/tests/browser/geo_leak_test.html
index fb3fabac40..8273174581 100644
--- a/dom/tests/browser/geo_leak_test.html
+++ b/dom/tests/browser/geo_leak_test.html
@@ -4,7 +4,7 @@
 <title>Geolocation incomplete position leak test</title>
 <script type="text/javascript">
 
-function successCallback(position) {}
+function successCallback() {}
 function errorCallback() {}
 
 function init() {
diff --git a/dom/tests/browser/test-console-api.html b/dom/tests/browser/test-console-api.html
index e8da7c311e..f5afdf96b2 100644
--- a/dom/tests/browser/test-console-api.html
+++ b/dom/tests/browser/test-console-api.html
@@ -54,7 +54,7 @@
       }
 
       function nativeCallback() {
-        new Promise(function(resolve, reject) { resolve(42); }).then(console.log);
+        new Promise(function(resolve) { resolve(42); }).then(console.log);
       }
 
       function timeStamp(val) {
diff --git a/dom/tests/browser/worker_bug1004814.js b/dom/tests/browser/worker_bug1004814.js
index 4fb54da692..fa6701329a 100644
--- a/dom/tests/browser/worker_bug1004814.js
+++ b/dom/tests/browser/worker_bug1004814.js
@@ -1,4 +1,4 @@
-onmessage = function (evt) {
+onmessage = function () {
   console.time("bug1004814");
   setTimeout(function () {
     console.timeEnd("bug1004814");
diff --git a/dom/tests/mochitest/chrome/child_focus_frame.html b/dom/tests/mochitest/chrome/child_focus_frame.html
index d7f0ff63cd..89e9b8aae1 100644
--- a/dom/tests/mochitest/chrome/child_focus_frame.html
+++ b/dom/tests/mochitest/chrome/child_focus_frame.html
@@ -43,8 +43,8 @@
 <fieldset style="float: right;">
 <legend id="legend">Options</legend>
   <input id="t28" type="radio" name="options" value="optionone">One
-  <label id="ad" accesskey="d">Label:<input id="t29" type="radio" name="options" value="optiontwo">Two</label>
 </fieldset>
+<label id="ad" accesskey="d">Label:<input id="t29" type="radio" name="options2" value="optiontwo">Two</label>
 <div id="t30" tabindex="0">abc</div>
 <input id="o18" accesskey="u" disabled size="3"/>
 <label id="ag" accesskey="g" for="n6">L</label>
diff --git a/dom/tests/mochitest/chrome/file_bug800817.xhtml b/dom/tests/mochitest/chrome/file_bug800817.xhtml
index bcd64b3ca7..ea646a74a1 100644
--- a/dom/tests/mochitest/chrome/file_bug800817.xhtml
+++ b/dom/tests/mochitest/chrome/file_bug800817.xhtml
@@ -30,16 +30,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=800817
     var b1 = document.getElementById("b1");
     var b2 = document.getElementById("b2");
 
-    var testMozBrowser = window.arguments[0].testMozBrowser;
-    if (testMozBrowser) {
-      b1.setAttribute("mozbrowser", "true");
-      b2.setAttribute("mozbrowser", "true");
-    }
-
-    if (testMozBrowser)
-      window.arguments[0].info("Testing with mozbrowser=true");
-    else
-      window.arguments[0].info("Testing without mozbrowser");
+    window.arguments[0].info("Testing...");
 
     b1.contentWindow.focus();
     window.arguments[0].is(document.activeElement, b1,
diff --git a/dom/tests/mochitest/chrome/test_bug800817.xhtml b/dom/tests/mochitest/chrome/test_bug800817.xhtml
index fefaf2c155..76ea31a2fc 100644
--- a/dom/tests/mochitest/chrome/test_bug800817.xhtml
+++ b/dom/tests/mochitest/chrome/test_bug800817.xhtml
@@ -20,20 +20,12 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=800817
   <![CDATA[
   /** Test for Bug 800817 **/
 
-  var testMozBrowser = false;
   function runTests() {
-    // Run a first round of tests for non-mozbrowser iframes.
     window.openDialog("file_bug800817.xhtml", "_blank", "chrome,width=600,height=550,noopener", window);
   }
 
   function finishedTests() {
-    if (!testMozBrowser) {
-      testMozBrowser = true;
-      // Run a second round of tests for mozbrowser iframes.
-      window.openDialog("file_bug800817.xhtml", "_blank", "chrome,width=600,height=550,noopener", window);
-    } else {
-      SimpleTest.finish();
-    }
+    SimpleTest.finish();
   }
 
   SimpleTest.waitForExplicitFinish();
diff --git a/dom/tests/mochitest/chrome/window_focus.xhtml b/dom/tests/mochitest/chrome/window_focus.xhtml
index e4cfeb6560..a1f9838450 100644
--- a/dom/tests/mochitest/chrome/window_focus.xhtml
+++ b/dom/tests/mochitest/chrome/window_focus.xhtml
@@ -46,6 +46,9 @@ var gChildWindow = null;
 
 var gOldExpectedWindow = null;
 var gNewExpectedWindow = null;
+var gCanTabMoveFocusToRootElement =
+    !SpecialPowers.getBoolPref("dom.disable_tab_focus_to_root_element");
+
 
 function is(l, r, n) { window.arguments[0].SimpleTest.is(l,r,n); }
 function ok(v, n) { window.arguments[0].SimpleTest.ok(v,n); }
@@ -398,8 +401,18 @@ function startTest()
 
   gLastFocusMethod = fm.FLAG_BYKEY;
   if (gPartialTabbing) {
-    var partialTabList = ["t3", "t5", "t9", "t10", "t11", "t12", "t13", "t14", "t15",
-                          "t16", "t19", "t20", "t21", "t22", "t26", "t27", "t28", "t29", "t30"];
+    var partialTabList;
+    if (gCanTabMoveFocusToRootElement) {
+      partialTabList = ["t3", "t5", "t9", "t10", "t11", "t12", "t13", "t14", "t15",
+                        "t16", "t19", "t20", "t21", "t22", "t26", "t27", "t28", "t29", "t30"];
+    } else {
+      // !gCanTabMoveFocusToRootElement
+      // t13 is the <html> element in child_focus_frame.html,
+      // and it's not getting the focus
+      // when gCanTabMoveFocusToRootElement is false.
+      partialTabList = ["t3", "t5", "t9", "t10", "t11", "t12", "t14", "t15",
+                        "t16", "t19", "t20", "t21", "t22", "t26", "t27", "t28", "t29", "t30"];
+    }
     for (var idx = 0; idx < partialTabList.length; idx++) {
       expectFocusShift(pressTab, null, getById(partialTabList[idx]), true, "partial tab key " + partialTabList[idx]);
     }
@@ -415,6 +428,13 @@ function startTest()
   else {
     // TAB key
     for (var idx = 1; idx <= kTabbableSteps; idx++) {
+      if (!gCanTabMoveFocusToRootElement) {
+        if (idx == kChildDocumentRootIndex)
+          // t13 is the <html> element in child_focus_frame.html,
+          // and it's not getting the focus
+          // when gCanTabMoveFocusToRootElement is false.
+          continue;
+      }
       expectFocusShift(pressTab, null, getById("t" + idx), true, "tab key t" + idx);
     }
 
@@ -427,6 +447,14 @@ function startTest()
     // Shift+TAB key
     setFocusTo("o5", window);
     for (idx = kTabbableSteps; idx > 0; idx--) {
+      if (!gCanTabMoveFocusToRootElement) {
+        if (idx == kChildDocumentRootIndex) {
+          // t13 is the <html> element in child_focus_frame.html,
+          // and it's not getting the focus
+          // when gCanTabMoveFocusToRootElement is false.
+          continue;
+        }
+      }
       expectFocusShift(() => synthesizeKey("KEY_Tab", {shiftKey: true}),
                        null, getById("t" + idx), true, "shift tab key t" + idx);
     }
@@ -1158,29 +1186,38 @@ function framesetWindowLoaded(framesetWindow)
   gOldExpectedWindow = getTopWindow(framesetWindow);
 
   gMoveToFocusFrame = true;
-  for (var idx = 1; idx <= 8; idx++) {
-    gNewExpectedWindow = framesetWindow.frames[(idx - 1) >> 1];
-    if (idx % 2)
+  let steps = gCanTabMoveFocusToRootElement ? 8 : 4;
+  for (var idx = 1; idx <= steps; idx++) {
+    let frameIndex = gCanTabMoveFocusToRootElement ? (idx - 1) >> 1 : idx - 1;
+    gNewExpectedWindow = framesetWindow.frames[frameIndex];
+    if (gCanTabMoveFocusToRootElement) {
+      if (idx % 2) {
+        initEvents(gNewExpectedWindow);
+      }
+    } else {
       initEvents(gNewExpectedWindow);
+    }
     expectFocusShift(() => synthesizeKey("KEY_Tab", {}, framesetWindow),
-                     gNewExpectedWindow, getById("f" + idx), true, "frameset tab key f" + idx);
+                     gNewExpectedWindow, getById("f" + (gCanTabMoveFocusToRootElement ? idx : idx * 2)), true, "frameset tab key f" + idx);
     gMoveToFocusFrame = false;
     gOldExpectedWindow = gNewExpectedWindow;
   }
 
   gNewExpectedWindow = framesetWindow.frames[0];
   expectFocusShift(() => synthesizeKey("KEY_Tab", {}, framesetWindow),
-                   gNewExpectedWindow, getById("f1"), true, "frameset tab key wrap to start");
+                   gNewExpectedWindow, gCanTabMoveFocusToRootElement ? getById("f1") : getById("f2"), true, "frameset tab key wrap to start");
   gOldExpectedWindow = gNewExpectedWindow;
   gNewExpectedWindow = framesetWindow.frames[3];
   expectFocusShift(() => synthesizeKey("KEY_Tab", {shiftKey: true}, framesetWindow),
                    gNewExpectedWindow, getById("f8"), true, "frameset shift tab key wrap to end");
 
-  for (idx = 7; idx >= 1; idx--) {
+  steps = gCanTabMoveFocusToRootElement ? 7 : 3;
+  for (idx = steps; idx >= 1; idx--) {
     gOldExpectedWindow = gNewExpectedWindow;
-    gNewExpectedWindow = framesetWindow.frames[(idx - 1) >> 1];
+    let frameIndex = gCanTabMoveFocusToRootElement ? (idx - 1) >> 1 : idx - 1;
+    gNewExpectedWindow = framesetWindow.frames[frameIndex];
     expectFocusShift(() => synthesizeKey("KEY_Tab", {shiftKey: true}, framesetWindow),
-                     gNewExpectedWindow, getById("f" + idx), true, "frameset shift tab key f" + idx);
+                     gNewExpectedWindow, getById("f" + (gCanTabMoveFocusToRootElement ? idx : idx * 2)), true, "frameset shift tab key f" + idx);
   }
 
   // document shifting
diff --git a/dom/tests/mochitest/general/mochitest.toml b/dom/tests/mochitest/general/mochitest.toml
index b8ec30f510..06137a8dd9 100644
--- a/dom/tests/mochitest/general/mochitest.toml
+++ b/dom/tests/mochitest/general/mochitest.toml
@@ -194,7 +194,7 @@ skip-if = [
 ["test_resizeby.html"]
 skip-if = [
   "os == 'android'", # Window sizes cannot be controled on android; Windows
-  "os == 'linux' && bits == 64",# Bug 1604152
+  "os == 'linux' && os_version == '18.04' && bits == 64",# Bug 1604152
 ]
 
 ["test_resource_timing.html"]
@@ -261,8 +261,10 @@ skip-if = [
 
 ["test_toggling_performance_navigation_timing.html"]
 skip-if = [
-  "os == 'win' && bits == 64 && !debug", # Bug 1730152
-  "os == 'mac' && bits == 64 && !debug", # Bug 1730152
+  "win10_2009 && bits == 64 && !debug", # Bug 1730152
+  "win11_2009 && bits == 64 && !debug", # Bug 1730152
+  "apple_catalina && !debug", # Bug 1730152
+  "apple_silicon && !debug", # Bug 1730152
 ]
 
 ["test_vibrator.html"]
diff --git a/dom/tests/mochitest/general/test_focus_scrollchildframe.html b/dom/tests/mochitest/general/test_focus_scrollchildframe.html
index 4b12462c45..5bb13002b8 100644
--- a/dom/tests/mochitest/general/test_focus_scrollchildframe.html
+++ b/dom/tests/mochitest/general/test_focus_scrollchildframe.html
@@ -1,7 +1,7 @@
 <!DOCTYPE HTML>
 <html>
 <head>
-  <title>Tests for for-of loops</title>
+  <title>Test for using TAB to move focus and scroll into view</title>
   <script src="/tests/SimpleTest/SimpleTest.js"></script>
   <script src="/tests/SimpleTest/EventUtils.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
@@ -11,10 +11,18 @@
 <div id="content" style="display: none"></div>
 <script>
 function doTest() {
+  var canTabMoveFocusToRootElement =
+    !SpecialPowers.getBoolPref("dom.disable_tab_focus_to_root_element");
   document.getElementById("button").focus();
+  const iframe = document.querySelector("iframe");
   is(window.scrollY, 0, "Scrolled position initially 0");
   synthesizeKey("KEY_Tab");
-  ok(window.scrollY > 200, "Scrolled child frame into view");
+  is(document.activeElement, iframe, "Focus moved to the iframe");
+  if (canTabMoveFocusToRootElement) {
+    ok(window.scrollY > 200, "Scrolled child frame into view");
+  } else {
+    is(window.scrollY, 0, "Scrolled position remained the same");
+  }
   SimpleTest.finish();
 }
 SimpleTest.waitForExplicitFinish();
diff --git a/dom/tests/mochitest/general/test_interfaces.js b/dom/tests/mochitest/general/test_interfaces.js
index 366a9203c7..fd15348532 100644
--- a/dom/tests/mochitest/general/test_interfaces.js
+++ b/dom/tests/mochitest/general/test_interfaces.js
@@ -182,6 +182,10 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "AudioContext", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "AudioData", insecureContext: true, nightly: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "AudioDecoder", nightly: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "AudioBufferSourceNode", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "AudioDestinationNode", insecureContext: true },
@@ -262,11 +266,7 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "ConstantSourceNode", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  {
-    name: "ContentVisibilityAutoStateChangeEvent",
-    insecureContext: true,
-    nightly: true,
-  },
+  { name: "ContentVisibilityAutoStateChangeEvent", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "ConvolverNode", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
@@ -390,8 +390,6 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "DOMRectReadOnly", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "DOMRequest", insecureContext: true, disabled: true },
-  // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "DOMStringList", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "DOMStringMap", insecureContext: true },
@@ -406,6 +404,8 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "ElementInternals", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "EncodedAudioChunk", insecureContext: true, nightly: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "EncodedVideoChunk", insecureContext: true, nightly: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "ErrorEvent", insecureContext: true },
@@ -456,23 +456,23 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "GainNode", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "Gamepad", insecureContext: false },
+  { name: "Gamepad", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadAxisMoveEvent", insecureContext: false },
+  { name: "GamepadAxisMoveEvent", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadButtonEvent", insecureContext: false },
+  { name: "GamepadButtonEvent", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadButton", insecureContext: false },
+  { name: "GamepadButton", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadEvent", insecureContext: false },
+  { name: "GamepadEvent", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadHapticActuator", insecureContext: false },
+  { name: "GamepadHapticActuator", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadLightIndicator", insecureContext: false, disabled: true },
+  { name: "GamepadLightIndicator", insecureContext: true, disabled: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadPose", insecureContext: false },
+  { name: "GamepadPose", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "GamepadTouch", insecureContext: false, disabled: true },
+  { name: "GamepadTouch", insecureContext: true, disabled: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "Geolocation", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
@@ -1074,6 +1074,8 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "RTCIceCandidate", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "RTCIceTransport", insecureContext: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "RTCPeerConnection", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "RTCPeerConnectionIceEvent", insecureContext: true },
@@ -1645,7 +1647,7 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "onbeforeprint", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
-  { name: "onbeforetoggle", insecureContext: true, nightly: true },
+  { name: "onbeforetoggle", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "onbeforeunload", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
@@ -1663,8 +1665,12 @@ let interfaceNamesInGlobalScope = [
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "onclose", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "oncontextlost", insecureContext: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "oncontextmenu", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
+  { name: "oncontextrestored", insecureContext: true },
+  // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "oncopy", insecureContext: true },
   // IMPORTANT: Do not change this list without review from a DOM peer!
   { name: "oncuechange", insecureContext: true },
diff --git a/dom/tests/mochitest/webcomponents/mochitest.toml b/dom/tests/mochitest/webcomponents/mochitest.toml
index 8b9dad41d5..e43a4d1ccd 100644
--- a/dom/tests/mochitest/webcomponents/mochitest.toml
+++ b/dom/tests/mochitest/webcomponents/mochitest.toml
@@ -64,8 +64,6 @@ support-files = [
 
 ["test_event_retarget.html"]
 
-["test_event_stopping.html"]
-
 ["test_link_prefetch.html"]
 
 ["test_shadowdom_active_pseudo_class.html"]
diff --git a/dom/tests/mochitest/webcomponents/test_event_stopping.html b/dom/tests/mochitest/webcomponents/test_event_stopping.html
deleted file mode 100644
index c90988d869..0000000000
--- a/dom/tests/mochitest/webcomponents/test_event_stopping.html
+++ /dev/null
@@ -1,174 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=887541
--->
-<head>
-  <title>Test for event model in web components</title>
-  <script type="text/javascript" src="head.js"></script>
-  <script src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-</head>
-<body>
-<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=887541">Bug 887541</a>
-<script>
-
-var els = SpecialPowers.Cc["@mozilla.org/eventlistenerservice;1"]
-            .getService(SpecialPowers.Ci.nsIEventListenerService);
-
-SimpleTest.waitForExplicitFinish();
-createIframe()
-  .then((aDocument) => {
-    function eventListener(e) {
-      eventChain.push(this);
-    }
-
-    function isEventChain(actual, expected, msg) {
-      is(actual.length, expected.length, msg);
-      for (var i = 0; i < expected.length; i++) {
-        is(actual[i], expected[i], msg + " at " + i);
-      }
-
-      if (actual.length) {
-        var chain = els.getEventTargetChainFor(actual[0], false); // Events should be dispatched on actual[0].
-        ok(expected.length < chain.length, "There should be additional chrome event targets.");
-      }
-    }
-
-    /*
-     * <div elemOne> ------ <shadow-root shadowOne>
-     *                                 |
-     *                          <span elemTwo>
-     *                                 |
-     *                         <span elemThree>
-     */
-
-    var elemOne = aDocument.createElement("div");
-    var elemTwo = aDocument.createElement("span");
-    var elemThree = aDocument.createElement("span");
-    var shadowOne = elemOne.attachShadow({mode: "open"});
-
-    shadowOne.appendChild(elemTwo);
-    elemTwo.appendChild(elemThree);
-
-    // Test stopping "abort" event.
-
-    elemOne.addEventListener("abort", eventListener);
-    elemTwo.addEventListener("abort", eventListener);
-    elemThree.addEventListener("abort", eventListener);
-    shadowOne.addEventListener("abort", eventListener);
-
-    var eventChain = [];
-
-    var customEvent = new CustomEvent("abort", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that abort event is stopped at shadow root.");
-
-    // Test stopping "error" event.
-
-    elemOne.addEventListener("error", eventListener);
-    elemTwo.addEventListener("error", eventListener);
-    elemThree.addEventListener("error", eventListener);
-    shadowOne.addEventListener("error", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("error", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that error event is stopped at shadow root.");
-
-    // Test stopping "select" event.
-
-    elemOne.addEventListener("select", eventListener);
-    elemTwo.addEventListener("select", eventListener);
-    elemThree.addEventListener("select", eventListener);
-    shadowOne.addEventListener("select", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("select", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that select event is stopped at shadow root.");
-
-    // Test stopping "change" event.
-
-    elemOne.addEventListener("change", eventListener);
-    elemTwo.addEventListener("change", eventListener);
-    elemThree.addEventListener("change", eventListener);
-    shadowOne.addEventListener("change", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("change", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-
-    // Test stopping "reset" event.
-
-    elemOne.addEventListener("reset", eventListener);
-    elemTwo.addEventListener("reset", eventListener);
-    elemThree.addEventListener("reset", eventListener);
-    shadowOne.addEventListener("reset", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("reset", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that reset event is stopped at shadow root.");
-
-    // Test stopping "load" event.
-
-    elemOne.addEventListener("load", eventListener);
-    elemTwo.addEventListener("load", eventListener);
-    elemThree.addEventListener("load", eventListener);
-    shadowOne.addEventListener("load", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("load", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that load event is stopped at shadow root.");
-
-    // Test stopping "resize" event.
-
-    elemOne.addEventListener("resize", eventListener);
-    elemTwo.addEventListener("resize", eventListener);
-    elemThree.addEventListener("resize", eventListener);
-    shadowOne.addEventListener("resize", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("resize", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that resize event is stopped at shadow root.");
-
-    // Test stopping "scroll" event.
-
-    elemOne.addEventListener("scroll", eventListener);
-    elemTwo.addEventListener("scroll", eventListener);
-    elemThree.addEventListener("scroll", eventListener);
-    shadowOne.addEventListener("scroll", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("scroll", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that scroll event is stopped at shadow root.");
-
-    // Test stopping "selectstart" event.
-
-    elemOne.addEventListener("selectstart", eventListener);
-    elemTwo.addEventListener("selectstart", eventListener);
-    elemThree.addEventListener("selectstart", eventListener);
-    shadowOne.addEventListener("selectstart", eventListener);
-
-    eventChain = [];
-
-    customEvent = new CustomEvent("selectstart", { "bubbles" : true });
-    elemThree.dispatchEvent(customEvent);
-    isEventChain(eventChain, [elemThree, elemTwo, shadowOne], "Test that selectstart event is stopped at shadow root.");
-
-    SimpleTest.finish();
-  });
-</script>
-</body>
-</html>
diff --git a/dom/tests/unit/test_Fetch.js b/dom/tests/unit/test_Fetch.js
index 768cf671dd..1449a23854 100644
--- a/dom/tests/unit/test_Fetch.js
+++ b/dom/tests/unit/test_Fetch.js
@@ -216,7 +216,7 @@ add_test(function test_getTestFailedConnect() {
   do_test_pending();
   // try a server that's not there
   fetch("http://localhost:4/should/fail")
-    .then(response => {
+    .then(() => {
       do_throw("Request should not succeed");
     })
     .catch(err => {
@@ -230,7 +230,7 @@ add_test(function test_mozError() {
   do_test_pending();
   // try a server that's not there
   fetch("http://localhost:4/should/fail", { mozErrors: true })
-    .then(response => {
+    .then(() => {
       do_throw("Request should not succeed");
     })
     .catch(err => {
@@ -245,7 +245,7 @@ add_test(function test_request_mozError() {
   // try a server that's not there
   const r = new Request("http://localhost:4/should/fail", { mozErrors: true });
   fetch(r)
-    .then(response => {
+    .then(() => {
       do_throw("Request should not succeed");
     })
     .catch(err => {
diff --git a/dom/tests/unit/test_PromiseDebugging.js b/dom/tests/unit/test_PromiseDebugging.js
index 2262d60d61..6148b65c75 100644
--- a/dom/tests/unit/test_PromiseDebugging.js
+++ b/dom/tests/unit/test_PromiseDebugging.js
@@ -2,7 +2,7 @@ function run_test() {
   // Hack around Promise.jsm being stuck on my global
   Assert.equal(false, PromiseDebugging === undefined);
   var res;
-  var p = new Promise(function (resolve, reject) {
+  var p = new Promise(function (resolve) {
     res = resolve;
   });
   var state = PromiseDebugging.getState(p);
diff --git a/dom/tests/unit/test_geolocation_monitor.js b/dom/tests/unit/test_geolocation_monitor.js
index f0fc1ad74b..7b47463882 100644
--- a/dom/tests/unit/test_geolocation_monitor.js
+++ b/dom/tests/unit/test_geolocation_monitor.js
@@ -56,7 +56,7 @@ function watchPosition() {
 let observer = {
   QueryInterface: ChromeUtils.generateQI(["nsIObserver"]),
 
-  observe(subject, topic, data) {
+  observe(subject, topic) {
     Assert.equal(topic, "geolocation-position-events");
     observer._countEvents++;
     observer._lastData = toJSON(subject);
diff --git a/dom/tests/unit/test_geolocation_provider.js b/dom/tests/unit/test_geolocation_provider.js
index 8c58cd39f5..e08887bfce 100644
--- a/dom/tests/unit/test_geolocation_provider.js
+++ b/dom/tests/unit/test_geolocation_provider.js
@@ -12,10 +12,10 @@ function terminate(succ) {
   geolocation.clearWatch(watchID);
 }
 
-function successCallback(pos) {
+function successCallback() {
   terminate(true);
 }
-function errorCallback(pos) {
+function errorCallback() {
   terminate(false);
 }