From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../aboutlogins/tests/chrome/.eslintrc.js          |  16 +
 .../aboutlogins/tests/chrome/aboutlogins_common.js |  97 +++
 .../components/aboutlogins/tests/chrome/chrome.ini |  13 +
 .../tests/chrome/test_confirm_delete_dialog.html   | 127 ++++
 .../tests/chrome/test_fxaccounts_button.html       |  96 +++
 .../tests/chrome/test_login_filter.html            | 178 ++++++
 .../aboutlogins/tests/chrome/test_login_item.html  | 481 ++++++++++++++
 .../aboutlogins/tests/chrome/test_login_list.html  | 697 +++++++++++++++++++++
 .../aboutlogins/tests/chrome/test_menu_button.html | 260 ++++++++
 9 files changed, 1965 insertions(+)
 create mode 100644 browser/components/aboutlogins/tests/chrome/.eslintrc.js
 create mode 100644 browser/components/aboutlogins/tests/chrome/aboutlogins_common.js
 create mode 100644 browser/components/aboutlogins/tests/chrome/chrome.ini
 create mode 100644 browser/components/aboutlogins/tests/chrome/test_confirm_delete_dialog.html
 create mode 100644 browser/components/aboutlogins/tests/chrome/test_fxaccounts_button.html
 create mode 100644 browser/components/aboutlogins/tests/chrome/test_login_filter.html
 create mode 100644 browser/components/aboutlogins/tests/chrome/test_login_item.html
 create mode 100644 browser/components/aboutlogins/tests/chrome/test_login_list.html
 create mode 100644 browser/components/aboutlogins/tests/chrome/test_menu_button.html

(limited to 'browser/components/aboutlogins/tests/chrome')

diff --git a/browser/components/aboutlogins/tests/chrome/.eslintrc.js b/browser/components/aboutlogins/tests/chrome/.eslintrc.js
new file mode 100644
index 0000000000..9b6510bdd2
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/.eslintrc.js
@@ -0,0 +1,16 @@
+/* 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";
+
+module.exports = {
+  overrides: [
+    {
+      files: ["test_login_item.html"],
+      parserOptions: {
+        sourceType: "module",
+      },
+    },
+  ],
+};
diff --git a/browser/components/aboutlogins/tests/chrome/aboutlogins_common.js b/browser/components/aboutlogins/tests/chrome/aboutlogins_common.js
new file mode 100644
index 0000000000..d24c962da0
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/aboutlogins_common.js
@@ -0,0 +1,97 @@
+"use strict";
+
+/* exported asyncElementRendered, importDependencies */
+
+/**
+ * A helper to await on while waiting for an asynchronous rendering of a Custom
+ * Element.
+ * @returns {Promise}
+ */
+function asyncElementRendered() {
+  return Promise.resolve();
+}
+
+/**
+ * Import the templates from the real page to avoid duplication in the tests.
+ * @param {HTMLIFrameElement} templateFrame - Frame to copy the resources from
+ * @param {HTMLElement} destinationEl - Where to append the copied resources
+ */
+function importDependencies(templateFrame, destinationEl) {
+  let promises = [];
+  for (let template of templateFrame.contentDocument.querySelectorAll(
+    "template"
+  )) {
+    let imported = document.importNode(template, true);
+    destinationEl.appendChild(imported);
+    // Preload the styles in the actual page, to ensure they're loaded on time.
+    for (let element of imported.content.querySelectorAll(
+      "link[rel='stylesheet']"
+    )) {
+      let clone = element.cloneNode(true);
+      promises.push(
+        new Promise(resolve => {
+          clone.onload = function () {
+            resolve();
+            clone.remove();
+          };
+        })
+      );
+      destinationEl.appendChild(clone);
+    }
+  }
+  return Promise.all(promises);
+}
+
+Object.defineProperty(document, "l10n", {
+  configurable: true,
+  writable: true,
+  value: {
+    connectRoot() {},
+    translateElements() {
+      return Promise.resolve();
+    },
+    getAttributes(element) {
+      return {
+        id: element.getAttribute("data-l10n-id"),
+        args: element.getAttribute("data-l10n-args")
+          ? JSON.parse(element.getAttribute("data-l10n-args"))
+          : {},
+      };
+    },
+    setAttributes(element, id, args) {
+      element.setAttribute("data-l10n-id", id);
+      if (args) {
+        element.setAttribute("data-l10n-args", JSON.stringify(args));
+      } else {
+        element.removeAttribute("data-l10n-args");
+      }
+    },
+  },
+});
+
+Object.defineProperty(window, "AboutLoginsUtils", {
+  configurable: true,
+  writable: true,
+  value: {
+    getLoginOrigin(uriString) {
+      return uriString;
+    },
+    setFocus(element) {
+      return element.focus();
+    },
+    async promptForPrimaryPassword(resolve, messageId) {
+      resolve(true);
+    },
+    doLoginsMatch(login1, login2) {
+      return (
+        login1.origin == login2.origin &&
+        login1.username == login2.username &&
+        login1.password == login2.password
+      );
+    },
+    fileImportEnabled: SpecialPowers.getBoolPref(
+      "signon.management.page.fileImport.enabled"
+    ),
+    primaryPasswordEnabled: false,
+  },
+});
diff --git a/browser/components/aboutlogins/tests/chrome/chrome.ini b/browser/components/aboutlogins/tests/chrome/chrome.ini
new file mode 100644
index 0000000000..ac1ba7076c
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/chrome.ini
@@ -0,0 +1,13 @@
+[DEFAULT]
+scheme = https
+prefs =
+   identity.fxaccounts.enabled=true
+support-files =
+   aboutlogins_common.js
+
+[test_confirm_delete_dialog.html]
+[test_fxaccounts_button.html]
+[test_login_filter.html]
+[test_login_item.html]
+[test_login_list.html]
+[test_menu_button.html]
diff --git a/browser/components/aboutlogins/tests/chrome/test_confirm_delete_dialog.html b/browser/components/aboutlogins/tests/chrome/test_confirm_delete_dialog.html
new file mode 100644
index 0000000000..68a58aee4f
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/test_confirm_delete_dialog.html
@@ -0,0 +1,127 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Test the confirmation-dialog component
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test the confirmation-dialog component</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/confirmation-dialog.mjs"></script>
+  <script src="aboutlogins_common.js"></script>
+
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  <p id="display">
+  </p>
+<div id="content" style="display: none">
+  <iframe id="templateFrame" src="chrome://browser/content/aboutlogins/aboutLogins.html"
+          sandbox="allow-same-origin"></iframe>
+</div>
+<pre id="test">
+</pre>
+<script>
+/** Test the confirmation-dialog component **/
+
+let options = {
+  title: "confirm-delete-dialog-title",
+  message: "confirm-delete-dialog-message",
+  confirmButtonLabel: "confirm-delete-dialog-confirm-button"
+};
+let cancelButton, confirmButton, gConfirmationDialog;
+add_setup(async () => {
+  let templateFrame = document.getElementById("templateFrame");
+  let displayEl = document.getElementById("display");
+  await importDependencies(templateFrame, displayEl);
+
+  gConfirmationDialog = document.createElement("confirmation-dialog");
+  displayEl.appendChild(gConfirmationDialog);
+  ok(gConfirmationDialog, "The dialog should exist");
+
+  cancelButton = gConfirmationDialog.shadowRoot.querySelector(".cancel-button");
+  confirmButton = gConfirmationDialog.shadowRoot.querySelector(".confirm-button");
+  ok(cancelButton, "The cancel button should exist");
+  ok(confirmButton, "The confirm button should exist");
+});
+
+add_task(async function test_escape_key_to_cancel() {
+  gConfirmationDialog.show(options);
+  ok(!gConfirmationDialog.hidden, "The dialog should be visible");
+  sendKey("ESCAPE");
+  ok(gConfirmationDialog.hidden, "The dialog should be hidden after hitting Escape");
+  gConfirmationDialog.hide();
+});
+
+add_task(async function test_initial_focus() {
+  gConfirmationDialog.show(options);
+  ok(!gConfirmationDialog.hidden, "The dialog should be visible");
+  is(gConfirmationDialog.shadowRoot.activeElement, confirmButton,
+     "After initially opening the dialog, the confirm button should be focused");
+  gConfirmationDialog.hide();
+});
+
+add_task(async function test_tab_focus() {
+  gConfirmationDialog.show(options);
+  ok(!gConfirmationDialog.hidden, "The dialog should be visible");
+  sendKey("TAB");
+  is(gConfirmationDialog.shadowRoot.activeElement, cancelButton,
+     "After opening the dialog and tabbing once, the cancel button should be focused");
+  gConfirmationDialog.hide();
+});
+
+add_task(async function test_enter_key_to_cancel() {
+  let showPromise = gConfirmationDialog.show(options);
+  ok(!gConfirmationDialog.hidden, "The dialog should be visible");
+  sendKey("RETURN");
+  try {
+    await showPromise;
+    ok(true, "The dialog Promise should resolve after hitting Return with the confirm button focused");
+  } catch (ex) {
+    ok(false, "The dialog Promise should not reject after hitting Return with the confirm button focused");
+  }
+});
+
+add_task(async function test_enter_key_to_confirm() {
+  let showPromise = gConfirmationDialog.show(options);
+  ok(!gConfirmationDialog.hidden, "The dialog should be visible");
+  sendKey("TAB");
+  sendKey("RETURN");
+  try {
+    await showPromise;
+    ok(false, "The dialog Promise should not resolve after hitting Return with the cancel button focused");
+  } catch (ex) {
+    ok(true, "The dialog Promise should reject after hitting Return with the cancel button focused");
+  }
+});
+
+add_task(async function test_dialog_focus_trap() {
+  let displayEl = document.getElementById("display");
+  let displayElChildSpan = document.createElement("span");
+  displayElChildSpan.tabIndex = 0;
+  displayElChildSpan.id = "display-child";
+  displayEl.appendChild(displayElChildSpan);
+
+  gConfirmationDialog.show(options);
+
+  ok(!gConfirmationDialog.hidden, "The dialog should be visible");
+  ok(displayElChildSpan.tabIndex === -1, "The tabIndex value for elements with a hardcoded tabIndex attribute should be reset to '-1'.")
+  ok(displayElChildSpan.dataset.oldTabIndex === "0", "Existing tabIndex values should be stored in `dataset.oldTabIndex`.")
+
+  const isActiveElemDialogOrHTMLorBODY = (elemTagName) => {
+    return (["HTML", "BODY", "CONFIRMATION-DIALOG"].includes(elemTagName));
+  }
+
+  let iterator = 0;
+  while(iterator < 20) {
+    sendKey("TAB");
+    isnot(document.activeElement.id, "display-child", "The display-child element should not gain focus when the dialog is showing");
+    ok(isActiveElemDialogOrHTMLorBODY(document.activeElement.tagName), "The confirmation-dialog should always have focus when the dialog is showing");
+    iterator++;
+  }
+});
+
+</script>
+</body>
+</html>
diff --git a/browser/components/aboutlogins/tests/chrome/test_fxaccounts_button.html b/browser/components/aboutlogins/tests/chrome/test_fxaccounts_button.html
new file mode 100644
index 0000000000..ce6046bf2a
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/test_fxaccounts_button.html
@@ -0,0 +1,96 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Test the fxaccounts-button component
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test the fxaccounts-button component</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/fxaccounts-button.mjs"></script>
+  <script src="aboutlogins_common.js"></script>
+
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  <p id="display">
+  </p>
+<div id="content" style="display: none">
+  <iframe id="templateFrame" src="chrome://browser/content/aboutlogins/aboutLogins.html"
+          sandbox="allow-same-origin"></iframe>
+</div>
+<pre id="test">
+</pre>
+<script>
+/** Test the fxaccounts-button component **/
+
+const TEST_AVATAR_URL = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==";
+
+let gFxAccountsButton;
+add_setup(async () => {
+  let templateFrame = document.getElementById("templateFrame");
+  let displayEl = document.getElementById("display");
+  await importDependencies(templateFrame, displayEl);
+
+  gFxAccountsButton = document.createElement("fxaccounts-button");
+  displayEl.appendChild(gFxAccountsButton);
+});
+
+add_task(async function test_default_state() {
+  ok(gFxAccountsButton, "FxAccountsButton exists");
+  ok(!isHidden(gFxAccountsButton.shadowRoot.querySelector(".logged-out-view")),
+    "logged-out-view view is visible by default");
+  ok(isHidden(gFxAccountsButton.shadowRoot.querySelector(".logged-in-view")),
+    "logged-in-view view is hidden by default");
+});
+
+add_task(async function test_logged_in_without_login_syncing() {
+  gFxAccountsButton.updateState({
+    fxAccountsEnabled: true,
+    loggedIn: true,
+    loginSyncingEnabled: false,
+  });
+
+  ok(isHidden(gFxAccountsButton.shadowRoot.querySelector(".logged-out-view")),
+    "logged-out-view view is hidden");
+  ok(!isHidden(gFxAccountsButton.shadowRoot.querySelector(".logged-in-view")),
+    "logged-in-view view is visible");
+});
+
+add_task(async function test_logged_in_with_login_syncing() {
+  const TEST_EMAIL = "test@example.com";
+
+  gFxAccountsButton.updateState({
+    fxAccountsEnabled: true,
+    loggedIn: true,
+    loginSyncingEnabled: true,
+    email: TEST_EMAIL,
+    avatarURL: TEST_AVATAR_URL,
+  });
+
+  ok(isHidden(gFxAccountsButton.shadowRoot.querySelector(".logged-out-view")),
+    "logged-out-view view is hidden");
+  ok(!isHidden(gFxAccountsButton.shadowRoot.querySelector(".logged-in-view")),
+    "logged-in-view view is visible");
+  is(gFxAccountsButton.shadowRoot.querySelector(".fxaccount-email").textContent,
+    TEST_EMAIL,
+    "email should be shown");
+  is(gFxAccountsButton.shadowRoot.querySelector(".fxaccounts-avatar-button").style.getPropertyValue("--avatar-url"),
+    `url(${TEST_AVATAR_URL})`,
+    "--avatar-url should be set");
+});
+
+add_task(async function test_fxaccounts_disabled() {
+  gFxAccountsButton.updateState({
+    fxAccountsEnabled: false,
+  });
+
+  ok(isHidden(gFxAccountsButton),
+    "the whole button is hidden when fxaccounts are disabled");
+});
+
+</script>
+
+</body>
+</html>
diff --git a/browser/components/aboutlogins/tests/chrome/test_login_filter.html b/browser/components/aboutlogins/tests/chrome/test_login_filter.html
new file mode 100644
index 0000000000..00e0a96a51
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/test_login_filter.html
@@ -0,0 +1,178 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Test the login-filter component
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test the login-filter component</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/login-filter.mjs"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/login-list.mjs"></script>
+  <script src="aboutlogins_common.js"></script>
+
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  <p id="display">
+  </p>
+<div id="content" style="display: none">
+  <iframe id="templateFrame" src="chrome://browser/content/aboutlogins/aboutLogins.html"
+          sandbox="allow-same-origin"></iframe>
+</div>
+<pre id="test">
+</pre>
+<script>
+/** Test the login-filter component **/
+
+let gLoginFilter;
+let gLoginList;
+add_setup(async () => {
+  let templateFrame = document.getElementById("templateFrame");
+  let displayEl = document.getElementById("display");
+  importDependencies(templateFrame, displayEl);
+
+  gLoginFilter = document.createElement("login-filter");
+  displayEl.appendChild(gLoginFilter);
+
+  gLoginList = document.createElement("login-list");
+  displayEl.appendChild(gLoginList);
+});
+
+add_task(async function test_empty_filter() {
+  ok(gLoginFilter, "loginFilter exists");
+  is(gLoginFilter.shadowRoot.querySelector("input").value, "", "Initially empty");
+});
+
+add_task(async function test_input_events() {
+  let filterEvent = null;
+  window.addEventListener("AboutLoginsFilterLogins", event => filterEvent = event);
+  let input = SpecialPowers.wrap(gLoginFilter.shadowRoot.querySelector("input"));
+  input.setUserInput("test");
+  ok(filterEvent, "Filter event received");
+  is(filterEvent.detail, "test", "Event includes input value");
+});
+
+add_task(async function test_list_filtered() {
+  const LOGINS = [{
+    guid: "123456789",
+    origin: "https://example.com",
+    username: "user1",
+    password: "pass1",
+  }, {
+    guid: "987654321",
+    origin: "https://example.com",
+    username: "user2",
+    password: "pass2",
+  }];
+  gLoginList.setLogins(LOGINS);
+
+  let tests = [
+    ["", 2],
+    [LOGINS[0].username, 1],
+    [LOGINS[0].username + "-notfound", 0],
+    [LOGINS[0].username.substr(2, 3), 1],
+    ["", 2],
+    // The password is also used for search when MP is disabled.
+    [LOGINS[0].password, 1],
+    [LOGINS[0].password + "-notfound", 0],
+    [LOGINS[0].password.substr(2, 3), 1],
+    ["", 2],
+    [LOGINS[0].origin, 2],
+    [LOGINS[0].origin + "-notfound", 0],
+    [LOGINS[0].origin.substr(2, 3), 2],
+    ["", 2],
+    // The guid is not used for search.
+    [LOGINS[0].guid, 0],
+    [LOGINS[0].guid + "-notfound", 0],
+    [LOGINS[0].guid.substr(0, 2), 0],
+    ["", 2],
+  ];
+
+  let loginFilterInput = gLoginFilter.shadowRoot.querySelector("input");
+  loginFilterInput.focus();
+
+  for (let i = 0; i < tests.length; i++) {
+    info("Testcase: " + i);
+
+    let testObj = {
+      testCase: i,
+      query: tests[i][0],
+      resultExpectedCount: tests[i][1],
+    };
+
+    let filterLength = loginFilterInput.value.length;
+    while (filterLength-- > 0) {
+      sendKey("BACK_SPACE");
+    }
+    sendString(testObj.query);
+
+    await SimpleTest.promiseWaitForCondition(() => {
+      let countElement = gLoginList.shadowRoot.querySelector(".count");
+      return countElement.hasAttribute("data-l10n-args") &&
+             JSON.parse(countElement.getAttribute("data-l10n-args")).count == testObj.resultExpectedCount;
+    }, `Waiting for the search result count to update to ${testObj.resultExpectedCount} (tc#${testObj.testCase})`);
+  }
+});
+
+  add_task(async function test_keys_in_filter() {
+    const LOGINS = [{
+      guid: "123456789",
+      origin: "https://example.com",
+      username: "user1",
+      password: "pass1",
+    }, {
+      guid: "987654321",
+      origin: "https://example.com",
+      username: "user2",
+      password: "pass2",
+    }, {
+      guid: "333333333",
+      origin: "https://example.com",
+      username: "user3",
+      password: "pass3",
+    }];
+    gLoginList.setLogins(LOGINS);
+
+    const ol = gLoginList.shadowRoot.querySelector("ol");
+    const loginFilterInput = gLoginFilter.shadowRoot.querySelector("input");
+    loginFilterInput.focus();
+
+    // Up/down keys must select previous/next item in the list
+    function pressKeyAndExpectSelection(key, selectedIndex) {
+      sendKey(key);
+      ok(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[selectedIndex]?.classList?.contains("keyboard-selected"),
+        `item ${selectedIndex} should be marked as keyboard-selected`);
+      is(ol.querySelector(".selected").dataset.guid, LOGINS[selectedIndex].guid, `item ${selectedIndex} must be selected`);
+    }
+
+    pressKeyAndExpectSelection("DOWN", 1);
+    pressKeyAndExpectSelection("DOWN", 2);
+
+    // ENTER key in search box must click on selected item in the list
+    sendKey("RETURN");
+    is(ol.querySelector(".selected").dataset.guid, LOGINS[2].guid, "item 2 must still be selected");
+
+    pressKeyAndExpectSelection("DOWN", 2);
+    pressKeyAndExpectSelection("UP", 1);
+    pressKeyAndExpectSelection("UP", 0);
+    pressKeyAndExpectSelection("UP", 0);
+
+    // ESC must clear search box
+    async function expectItemCount(count) {
+      await SimpleTest.promiseWaitForCondition(() =>
+        JSON.parse(gLoginList.shadowRoot.querySelector(".count").getAttribute("data-l10n-args"))?.count == count,
+        `Waiting for the search result count to update to ${count}`);
+    }
+
+    sendString("unique string");
+    await expectItemCount(0);
+    sendKey("Escape");
+    ok(!loginFilterInput.value, "ESC must clear filter input");
+    await expectItemCount(LOGINS.length);
+  });
+</script>
+
+</body>
+</html>
diff --git a/browser/components/aboutlogins/tests/chrome/test_login_item.html b/browser/components/aboutlogins/tests/chrome/test_login_item.html
new file mode 100644
index 0000000000..a7946a0618
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/test_login_item.html
@@ -0,0 +1,481 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Test the login-item component
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test the login-item component</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/login-item.mjs"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/confirmation-dialog.mjs"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/login-timeline.mjs"></script>
+  <script src="aboutlogins_common.js"></script>
+
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  <p id="display">
+  </p>
+<div id="content" style="display: none">
+  <iframe id="templateFrame" src="chrome://browser/content/aboutlogins/aboutLogins.html"
+          sandbox="allow-same-origin"></iframe>
+</div>
+<pre id="test">
+</pre>
+<script type="module">
+
+import { CONCEALED_PASSWORD_TEXT } from "chrome://browser/content/aboutlogins/aboutLoginsUtils.mjs";
+
+/** Test the login-item component **/
+
+let gLoginItem, gConfirmationDialog;
+const TEST_LOGIN_1 = {
+  guid: "123456789",
+  origin: "https://example.com",
+  username: "user1",
+  password: "pass1",
+  timeCreated: "1000",
+  timePasswordChanged: "2000",
+  timeLastUsed: "4000",
+};
+
+const TEST_LOGIN_2 = {
+  guid: "987654321",
+  origin: "https://example.com",
+  username: "user2",
+  password: "pass2",
+  timeCreated: "2000",
+  timePasswordChanged: "4000",
+  timeLastUsed: "8000",
+};
+
+const TEST_BREACH = {
+  Name: "Test-Breach",
+  breachAlertURL: "https://monitor.firefox.com/breach-details/Test-Breach",
+};
+
+const TEST_BREACHES_MAP = new Map();
+TEST_BREACHES_MAP.set(TEST_LOGIN_1.guid, TEST_BREACH);
+
+const TEST_VULNERABLE_MAP = new Map();
+TEST_VULNERABLE_MAP.set(TEST_LOGIN_2.guid, true);
+
+const getLoginTimeline = loginItem =>
+  loginItem.shadowRoot.querySelector("login-timeline");
+
+const verifyTimelineActions = (actions, expectedActions) => {
+  is(
+    actions.length,
+    expectedActions.length,
+    `Number timeline actions length is correct. Actual: ${actions.length}. Expected: ${expectedActions.length}`
+  );
+
+  actions.forEach((point, index) => {
+    let actionId = document.l10n.getAttributes(point).id;
+    let expectedAction = expectedActions[index];
+
+    is(
+      actionId,
+      expectedAction,
+      `Rendered action is correct. Actual: ${actionId}. Expected: ${expectedAction}`
+    );
+  });
+};
+
+add_setup(async () => {
+  let templateFrame = document.getElementById("templateFrame");
+  let displayEl = document.getElementById("display");
+  await importDependencies(templateFrame, displayEl);
+
+  gLoginItem = document.createElement("login-item");
+  displayEl.appendChild(gLoginItem);
+
+  gConfirmationDialog = document.createElement("confirmation-dialog");
+  gConfirmationDialog.hidden = true;
+  displayEl.appendChild(gConfirmationDialog);
+});
+
+add_task(async function test_empty_item() {
+  ok(gLoginItem, "loginItem exists");
+  is(gLoginItem.shadowRoot.querySelector("a[name='origin']").getAttribute("href"), "", "origin should be blank");
+  is(gLoginItem.shadowRoot.querySelector("input[name='username']").value, "", "username should be blank");
+  is(gLoginItem._passwordInput.value, "", "password should be blank");
+  ok(!gLoginItem._passwordInput.isConnected, "Real password input should be disconnected");
+  is(gLoginItem._passwordDisplayInput.value, "", "password display should be blank");
+  ok(!isHidden(gLoginItem._passwordDisplayInput), "Password display input should be visible")
+  ok(isHidden(getLoginTimeline(gLoginItem)), "Timeline should be hidden");
+});
+
+add_task(async function test_set_login() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  await asyncElementRendered();
+
+  ok(!gLoginItem.dataset.editing, "loginItem should not be in 'edit' mode");
+  ok(!gLoginItem.dataset.isNewLogin, "loginItem should not be in 'isNewLogin' mode");
+  ok(isHidden(gLoginItem._originInput), "Origin input should be hidden when not in edit mode");
+  ok(!isHidden(gLoginItem._originDisplayInput), "Origin display link should be visible when not in edit mode");
+  let originLink = gLoginItem.shadowRoot.querySelector("a[name='origin']");
+  is(originLink.getAttribute("href"), TEST_LOGIN_1.origin, "origin should be populated");
+  let usernameInput = gLoginItem.shadowRoot.querySelector("input[name='username']");
+  is(usernameInput.value, TEST_LOGIN_1.username, "username should be populated");
+  is(document.l10n.getAttributes(usernameInput).id, "about-logins-login-item-username", "username field should have default placeholder when not editing");
+
+  let passwordInput = gLoginItem._passwordInput;
+  is(passwordInput.value, TEST_LOGIN_1.password, "password should be populated");
+  ok(!passwordInput.hasAttribute("value"), "Password shouldn't be exposed in @value");
+  ok(!gLoginItem._passwordInput.isConnected, "Real password input should be disconnected");
+  let passwordDisplayInput = gLoginItem._passwordDisplayInput;
+  is(passwordDisplayInput.value, CONCEALED_PASSWORD_TEXT, "password display should be populated");
+  ok(!isHidden(passwordDisplayInput), "Password display input should be visible");
+
+  let timeline = getLoginTimeline(gLoginItem);
+  ok(!isHidden(timeline), "Timeline should be visible");
+  let actions = timeline.shadowRoot.querySelectorAll(".action");
+  verifyTimelineActions(actions, [
+    "login-item-timeline-action-created",
+    "login-item-timeline-action-updated",
+    "login-item-timeline-action-used",
+  ]);
+
+  let copyButtons = [...gLoginItem.shadowRoot.querySelectorAll(".copy-button")];
+  ok(copyButtons.every(button => !isHidden(button)), "The copy buttons should be visible when viewing a login");
+
+  let loginNoUsername = Object.assign({}, TEST_LOGIN_1, {username: ""});
+  gLoginItem.setLogin(loginNoUsername);
+  ok(!gLoginItem.dataset.editing, "loginItem should not be in 'edit' mode");
+  is(document.l10n.getAttributes(usernameInput).id, "about-logins-login-item-username", "username field should have default placeholder when username is not present and not editing");
+  let copyUsernameButton = gLoginItem.shadowRoot.querySelector(".copy-username-button");
+  ok(copyUsernameButton.disabled, "The copy-username-button should be disabled if there is no username");
+
+  usernameInput.placeholder = "dummy placeholder";
+  gLoginItem.shadowRoot.querySelector(".edit-button").click();
+  await asyncElementRendered();
+  is(
+    document.l10n.getAttributes(usernameInput).id,
+    null,
+    "there should be no placeholder id on the username input in edit mode"
+  );
+  is(usernameInput.placeholder, "", "there should be no placeholder on the username input in edit mode");
+});
+
+add_task(async function test_update_breaches() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  gLoginItem.setBreaches(TEST_BREACHES_MAP);
+  await asyncElementRendered();
+
+  let breachAlert = gLoginItem.shadowRoot.querySelector(".breach-alert");
+  ok(!isHidden(breachAlert), "Breach alert should be visible");
+  is(breachAlert.querySelector(".alert-link").href, TEST_LOGIN_1.origin + "/", "Link in the text should point to the login origin");
+  let vulernableAlert = gLoginItem.shadowRoot.querySelector(".vulnerable-alert");
+  ok(isHidden(vulernableAlert), "Vulnerable alert should not be visible on a non-vulnerable login.");
+});
+
+add_task(async function test_breach_alert_is_correctly_hidden() {
+  gLoginItem.setLogin(TEST_LOGIN_2);
+  gLoginItem.setBreaches(TEST_BREACHES_MAP);
+  await asyncElementRendered();
+
+  let breachAlert = gLoginItem.shadowRoot.querySelector(".breach-alert");
+  ok(isHidden(breachAlert), "Breach alert should not be visible on login without an associated breach.");
+  let vulernableAlert = gLoginItem.shadowRoot.querySelector(".vulnerable-alert");
+  ok(isHidden(vulernableAlert), "Vulnerable alert should not be visible on a non-vulnerable login.");
+});
+
+add_task(async function test_update_vulnerable() {
+  gLoginItem.setLogin(TEST_LOGIN_2);
+  gLoginItem.setVulnerableLogins(TEST_VULNERABLE_MAP);
+  await asyncElementRendered();
+
+  let breachAlert = gLoginItem.shadowRoot.querySelector(".breach-alert");
+  ok(isHidden(breachAlert), "Breach alert should not be visible on login without an associated breach.");
+  let vulernableAlert = gLoginItem.shadowRoot.querySelector(".vulnerable-alert");
+  ok(!isHidden(vulernableAlert), "Vulnerable alert should be visible");
+  is(vulernableAlert.querySelector(".alert-link").href, TEST_LOGIN_2.origin + "/", "Link in the text should point to the login origin");
+});
+
+add_task(async function test_vulnerable_alert_is_correctly_hidden() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  gLoginItem.setVulnerableLogins(TEST_VULNERABLE_MAP);
+  gLoginItem.setBreaches(new Map());
+  await asyncElementRendered();
+
+  let breachAlert = gLoginItem.shadowRoot.querySelector(".breach-alert");
+  ok(isHidden(breachAlert), "Breach alert should not be visible on login without an associated breach.");
+  let vulernableAlert = gLoginItem.shadowRoot.querySelector(".vulnerable-alert");
+  ok(isHidden(vulernableAlert), "Vulnerable alert should not be visible on a non-vulnerable login.");
+});
+
+add_task(async function test_edit_login() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  let usernameInput = gLoginItem.shadowRoot.querySelector("input[name='username']");
+  usernameInput.placeholder = "dummy placeholder";
+  gLoginItem.shadowRoot.querySelector(".edit-button").click();
+  await asyncElementRendered();
+  await asyncElementRendered();
+
+  ok(gLoginItem.dataset.editing, "loginItem should be in 'edit' mode");
+  ok(isHidden(gLoginItem.shadowRoot.querySelector(".edit-button")), "edit button should be hidden in 'edit' mode");
+  ok(!gLoginItem.dataset.isNewLogin, "loginItem should not be in 'isNewLogin' mode");
+  let deleteButton = gLoginItem.shadowRoot.querySelector(".delete-button");
+  ok(!deleteButton.disabled, "Delete button should be enabled when editing a login");
+  ok(isHidden(gLoginItem._originInput), "Origin input should be hidden in edit mode");
+  ok(!isHidden(gLoginItem._originDisplayInput), "Origin display link should be visible in edit mode");
+  is(gLoginItem.shadowRoot.querySelector("a[name='origin']").getAttribute("href"), TEST_LOGIN_1.origin, "origin should be populated");
+  is(usernameInput.value, TEST_LOGIN_1.username, "username should be populated");
+  is(usernameInput, document.activeElement?.shadowRoot?.activeElement, "username is focused");
+  is(usernameInput.selectionStart, 0, "username value is selected from start");
+  is(usernameInput.selectionEnd, usernameInput.value.length, "username value is selected to the end");
+  is(
+    document.l10n.getAttributes(usernameInput).id,
+    null,
+    "there should be no placeholder id on the username input in edit mode"
+  );
+  is(usernameInput.placeholder, "", "there should be no placeholder on the username input in edit mode");
+  is(gLoginItem._passwordInput.value, TEST_LOGIN_1.password, "password should be populated");
+  is(gLoginItem._passwordDisplayInput.value, CONCEALED_PASSWORD_TEXT, "password display should be populated");
+
+  let timeline = getLoginTimeline(gLoginItem);
+  ok(!isHidden(timeline), "Timeline should be visible");
+
+  let copyButtons = [...gLoginItem.shadowRoot.querySelectorAll(".copy-button")];
+  ok(copyButtons.every(button => isHidden(button)), "The copy buttons should be hidden when editing a login");
+
+  usernameInput.value = "newUsername";
+  gLoginItem._passwordInput.value = "newPassword";
+
+  let updateEventDispatched = false;
+  document.addEventListener("AboutLoginsUpdateLogin", event => {
+    is(event.detail.guid, TEST_LOGIN_1.guid, "event should include guid");
+    is(event.detail.origin, TEST_LOGIN_1.origin, "event should include origin");
+    is(event.detail.username, "newUsername", "event should include new username");
+    is(event.detail.password, "newPassword", "event should include new password");
+    updateEventDispatched = true;
+  }, {once: true});
+  gLoginItem.shadowRoot.querySelector(".save-changes-button").click();
+  ok(updateEventDispatched, "Clicking the .save-changes-button should dispatch the AboutLoginsUpdateLogin event");
+});
+
+add_task(async function test_edit_login_cancel() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  gLoginItem.shadowRoot.querySelector(".edit-button").click();
+  await asyncElementRendered();
+
+  ok(gLoginItem.dataset.editing, "loginItem should be in 'edit' mode");
+  is(!!gLoginItem.dataset.isNewLogin, false,
+     "loginItem should not be in 'isNewLogin' mode");
+
+  gLoginItem.shadowRoot.querySelector(".cancel-button").click();
+  gConfirmationDialog.shadowRoot.querySelector(".confirm-button").click();
+
+  await SimpleTest.promiseWaitForCondition(
+    () => gConfirmationDialog.hidden,
+    "waiting for confirmation dialog to hide"
+  );
+
+  ok(!gLoginItem.dataset.editing, "loginItem should not be in 'edit' mode");
+  ok(!gLoginItem.dataset.isNewLogin, "loginItem should not be in 'isNewLogin' mode");
+});
+
+add_task(async function test_reveal_password_change_selected_login() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  let revealCheckbox = gLoginItem.shadowRoot.querySelector(".reveal-password-checkbox");
+  let passwordInput = gLoginItem._passwordInput;
+
+  ok(!revealCheckbox.checked, "reveal-checkbox should not be checked by default");
+  is(passwordInput.type, "password", "Password should be masked by default");
+  revealCheckbox.click();
+  ok(revealCheckbox.checked, "reveal-checkbox should be checked after clicking");
+  await SimpleTest.promiseWaitForCondition(() => passwordInput.type == "text",
+    "waiting for password input type to change after checking for primary password");
+  is(passwordInput.type, "text", "Password should be unmasked when checkbox is clicked");
+  ok(!isHidden(passwordInput), "Password input should be visible");
+
+  let editButton = gLoginItem.shadowRoot.querySelector(".edit-button");
+  editButton.click();
+  await asyncElementRendered();
+  ok(!isHidden(passwordInput), "Password input should still be visible");
+  ok(revealCheckbox.checked, "reveal-checkbox should remain checked when entering 'edit' mode");
+  gLoginItem.shadowRoot.querySelector(".cancel-button").click();
+  ok(!revealCheckbox.checked, "reveal-checkbox should be unchecked after canceling 'edit' mode");
+  revealCheckbox.click();
+  ok(isHidden(passwordInput), "Password input should be hidden");
+  ok(!isHidden(gLoginItem._passwordDisplayInput), "Password display should be visible");
+  gLoginItem.setLogin(TEST_LOGIN_2);
+  ok(!revealCheckbox.checked, "reveal-checkbox should be unchecked when changing logins");
+  is(passwordInput.type, "password", "Password should be masked by default when switching logins");
+  ok(isHidden(passwordInput), "Password input should be hidden");
+  ok(!isHidden(gLoginItem._passwordDisplayInput), "Password display should be visible");
+});
+
+add_task(async function test_set_login_empty() {
+  gLoginItem.setLogin({});
+  await asyncElementRendered();
+
+  ok(gLoginItem.dataset.editing, "loginItem should be in 'edit' mode");
+  ok(isHidden(gLoginItem.shadowRoot.querySelector(".edit-button")), "edit button should be hidden in 'edit' mode");
+  ok(gLoginItem.dataset.isNewLogin, "loginItem should be in 'isNewLogin' mode");
+  let deleteButton = gLoginItem.shadowRoot.querySelector(".delete-button");
+  ok(deleteButton.disabled, "Delete button should be disabled when creating a login");
+  ok(!isHidden(gLoginItem._originInput), "Origin input should be visible in new login edit mode");
+  ok(isHidden(gLoginItem._originDisplayInput), "Origin display should be hidden in new login edit mode");
+  is(gLoginItem.shadowRoot.querySelector("input[name='origin']").value, "", "origin should be empty");
+  is(gLoginItem.shadowRoot.querySelector("input[name='username']").value, "", "username should be empty");
+  is(gLoginItem._passwordInput.value, "", "password should be empty");
+  ok(!isHidden(gLoginItem._passwordInput), "Real password input should be visible in edit mode");
+  ok(isHidden(gLoginItem._passwordDisplayInput), "Password display should be hidden in edit mode");
+  ok(!gLoginItem._passwordInput.hasAttribute("value"), "Password shouldn't be exposed in @value");
+
+  let timeline = getLoginTimeline(gLoginItem);
+  ok(isHidden(timeline), "Timeline should be visible");
+
+  let copyButtons = [...gLoginItem.shadowRoot.querySelectorAll(".copy-button")];
+  ok(copyButtons.every(button => isHidden(button)), "The copy buttons should be hidden when creating a login");
+
+  let createEventDispatched = false;
+  document.addEventListener("AboutLoginsCreateLogin", event => {
+    createEventDispatched = true;
+  }, {once: true});
+  gLoginItem.shadowRoot.querySelector(".save-changes-button").click();
+  ok(!createEventDispatched, "Clicking the .save-changes-button shouldn't dispatch the event when fields are invalid");
+  let originInput = gLoginItem.shadowRoot.querySelector("input[name='origin']");
+  ok(originInput.matches(":invalid"), "origin value is required");
+  is(originInput.value, "", "origin input should be blank at start");
+
+  for (let originTuple of [
+    ["ftp://ftp.example.com/", "ftp://ftp.example.com/"],
+    ["https://example.com/", "https://example.com/"],
+    ["http://example.com/", "http://example.com/"],
+    ["www.example.com/bar", "https://www.example.com/bar"],
+    ["example.com/foo", "https://example.com/foo"],
+  ]) {
+    originInput.value = originTuple[0];
+    sendKey("TAB");
+    is(originInput.value, originTuple[1],
+      "origin input should have https:// prefix when not provided by user");
+    // Return focus back to the origin input
+    synthesizeKey("VK_TAB", { shiftKey: true });
+  }
+
+  gLoginItem.shadowRoot.querySelector("input[name='username']").value = "user1";
+  gLoginItem._passwordInput.value = "pass1";
+
+  document.addEventListener("AboutLoginsCreateLogin", event => {
+    is(event.detail.guid, undefined, "event should not include guid");
+    is(event.detail.origin, "https://example.com/foo", "event should include origin");
+    is(event.detail.username, "user1", "event should include new username");
+    is(event.detail.password, "pass1", "event should include new password");
+    createEventDispatched = true;
+  }, {once: true});
+  gLoginItem.shadowRoot.querySelector(".save-changes-button").click();
+  ok(createEventDispatched, "Clicking the .save-changes-button should dispatch the AboutLoginsCreateLogin event");
+});
+
+add_task(async function test_different_login_modified() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  let otherLogin = Object.assign({}, TEST_LOGIN_1, {username: "fakeuser", guid: "fakeguid"});
+  gLoginItem.loginModified(otherLogin);
+  await asyncElementRendered();
+
+  is(gLoginItem.shadowRoot.querySelector("a[name='origin']").getAttribute("href"), TEST_LOGIN_1.origin, "origin should be unchanged");
+  is(gLoginItem.shadowRoot.querySelector("input[name='username']").value, TEST_LOGIN_1.username, "username should be unchanged");
+  is(gLoginItem._passwordInput.value, TEST_LOGIN_1.password, "password should be unchanged");
+  ok(!gLoginItem._passwordInput.hasAttribute("value"), "Password shouldn't be exposed in @value");
+  ok(!gLoginItem._passwordInput.isConnected, "Real password input should be disconnected in masked non-edit mode");
+  ok(!isHidden(gLoginItem._passwordDisplayInput), "Password display should be visible in masked non-edit mode");
+});
+
+add_task(async function test_different_login_removed() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  let otherLogin = Object.assign({}, TEST_LOGIN_1, {username: "fakeuser", guid: "fakeguid"});
+  gLoginItem.loginRemoved(otherLogin);
+  await asyncElementRendered();
+
+  is(gLoginItem.shadowRoot.querySelector("a[name='origin']").getAttribute("href"), TEST_LOGIN_1.origin, "origin should be unchanged");
+  is(gLoginItem.shadowRoot.querySelector("input[name='username']").value, TEST_LOGIN_1.username, "username should be unchanged");
+  is(gLoginItem._passwordInput.value, TEST_LOGIN_1.password, "password should be unchanged");
+  ok(!gLoginItem._passwordInput.hasAttribute("value"), "Password shouldn't be exposed in @value");
+  ok(!gLoginItem._passwordInput.isConnected, "Real password input should be disconnected in masked non-edit mode");
+  ok(!isHidden(gLoginItem._passwordDisplayInput), "Password display should be visible in masked non-edit mode");
+});
+
+add_task(async function test_login_modified() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  let modifiedLogin = Object.assign({}, TEST_LOGIN_1, {username: "updateduser"});
+  gLoginItem.loginModified(modifiedLogin);
+  await asyncElementRendered();
+
+  is(gLoginItem.shadowRoot.querySelector("a[name='origin']").getAttribute("href"), modifiedLogin.origin, "origin should be updated");
+  is(gLoginItem.shadowRoot.querySelector("input[name='username']").value, modifiedLogin.username, "username should be updated");
+  is(gLoginItem._passwordInput.value, modifiedLogin.password, "password should be updated");
+  ok(!gLoginItem._passwordInput.hasAttribute("value"), "Password shouldn't be exposed in @value");
+  ok(!gLoginItem._passwordInput.isConnected, "Real password input should be disconnected in masked non-edit mode");
+  ok(!isHidden(gLoginItem._passwordDisplayInput), "Password display should be visible in masked non-edit mode");
+});
+
+add_task(async function test_login_removed() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  gLoginItem.loginRemoved(TEST_LOGIN_1);
+  await asyncElementRendered();
+
+  is(gLoginItem.shadowRoot.querySelector("input[name='origin']").value, "", "origin should be cleared");
+  is(gLoginItem.shadowRoot.querySelector("input[name='username']").value, "", "username should be cleared");
+  is(gLoginItem._passwordInput.value, "", "password should be cleared");
+  ok(!gLoginItem._passwordInput.hasAttribute("value"), "Password shouldn't be exposed in @value");
+
+  let timeline = getLoginTimeline(gLoginItem);
+  ok(isHidden(timeline), "Timeline should be visible");
+});
+
+add_task(async function test_login_long_username_scrollLeft_reset() {
+  let loginLongUsername = Object.assign({}, TEST_LOGIN_1, {username: "user2longnamelongnamelongnamelongnamelongname"});
+  gLoginItem.setLogin(loginLongUsername);
+  gLoginItem.shadowRoot.querySelector(".edit-button").click();
+  await asyncElementRendered();
+  await asyncElementRendered();
+  let usernameInput = gLoginItem.shadowRoot.querySelector("input[name='username']");
+  usernameInput.scrollLeft = usernameInput.scrollLeftMax;
+  gLoginItem.shadowRoot.querySelector(".cancel-button").click();
+  is(usernameInput.scrollLeft, 0, "username input should be scrolled horizontally to the beginning");
+});
+
+add_task(async function test_copy_button_state() {
+  gLoginItem.setLogin(TEST_LOGIN_1);
+  await asyncElementRendered();
+
+  let copyUsernameButton = gLoginItem.shadowRoot.querySelector(".copy-username-button");
+  ok(!copyUsernameButton.disabled, "The copy-username-button should be enabled");
+
+  let copyPasswordButton = gLoginItem.shadowRoot.querySelector(".copy-password-button");
+  ok(!copyPasswordButton.disabled, "The copy-passwoed-button should be enabled");
+
+  copyUsernameButton.click();
+  ok(copyUsernameButton.disabled, "The copy-username-button should be disabled when it is clicked");
+  ok(!copyPasswordButton.disabled, "The copy-passwoed-button should be enabled when the copy-username-button is clicked");
+
+  copyPasswordButton.click();
+  await SimpleTest.promiseWaitForCondition(() => copyPasswordButton.disabled,
+  "waiting for copy-password-button to become disabled after checking for primary password");
+
+  ok(copyPasswordButton.disabled, "The copy-passwoed-button should be disabled when it is clicked");
+  ok(!copyUsernameButton.disabled, "The copy-username-button should be enabled when the copy-password-button is clicked");
+
+  let loginNoUsername = Object.assign({}, TEST_LOGIN_2, {username: ""});
+  gLoginItem.setLogin(loginNoUsername);
+
+  ok(copyUsernameButton.disabled, "The copy-username-button should be disabled when the username is empty");
+  ok(!copyPasswordButton.disabled, "The copy-passwoed-button should be enabled");
+
+  copyPasswordButton.click();
+  await SimpleTest.promiseWaitForCondition(() => copyPasswordButton.disabled,
+  "waiting for copy-password-button to become disabled after checking for primary password");
+
+  ok(copyPasswordButton.disabled, "The copy-passwoed-button should be disabled when it is clicked");
+  ok(copyUsernameButton.disabled, "The copy-username-button should still be disabled after clicking the password button when the username is empty");
+});
+
+</script>
+
+</body>
+</html>
diff --git a/browser/components/aboutlogins/tests/chrome/test_login_list.html b/browser/components/aboutlogins/tests/chrome/test_login_list.html
new file mode 100644
index 0000000000..98342978fb
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/test_login_list.html
@@ -0,0 +1,697 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Test the login-list component
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test the login-list component</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/login-list.mjs"></script>
+  <script src="aboutlogins_common.js"></script>
+
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  <p id="display">
+  </p>
+<div id="content" style="display: none">
+  <iframe id="templateFrame" src="chrome://browser/content/aboutlogins/aboutLogins.html"
+          sandbox="allow-same-origin"></iframe>
+</div>
+<pre id="test">
+</pre>
+<script>
+/** Test the login-list component **/
+
+let gLoginList;
+const TEST_LOGIN_1 = {
+  guid: "123456789",
+  origin: "https://abc.example.com",
+  httpRealm: null,
+  username: "user1",
+  password: "pass1",
+  title: "abc.example.com",
+  // new Date("December 13, 2018").getTime()
+  timeLastUsed: 1544677200000,
+  timePasswordChanged: 1544677200000,
+};
+const TEST_LOGIN_2 = {
+  guid: "987654321",
+  origin: "https://example.com",
+  httpRealm: null,
+  username: "user2",
+  password: "pass2",
+  title: "example.com",
+  // new Date("June 1, 2019").getTime()
+  timeLastUsed: 1559361600000,
+  timePasswordChanged: 1559361600000,
+};
+const TEST_LOGIN_3 = {
+  guid: "1111122222",
+  origin: "https://def.example.com",
+  httpRealm: null,
+  username: "",
+  password: "pass3",
+  title: "def.example.com",
+  // new Date("June 1, 2019").getTime()
+  timeLastUsed: 1559361600000,
+  timePasswordChanged: 1559361600000,
+};
+const TEST_HTTP_AUTH_LOGIN_1 = {
+  guid: "8675309",
+  origin: "https://httpauth.example.com",
+  httpRealm: "My Realm",
+  username: "http_auth_user",
+  password: "pass4",
+  title: "httpauth.example.com (My Realm)",
+  // new Date("June 1, 2019").getTime()
+  timeLastUsed: 1559361600000,
+  timePasswordChanged: 1559361600000,
+};
+
+const TEST_BREACH = {
+  AddedDate: "2018-12-20T23:56:26Z",
+  BreachDate: "2018-12-11",
+  Domain: "abc.example.com",
+  Name: "ABC Example",
+  PwnCount: 1643100,
+  DataClasses: ["Usernames", "Passwords"],
+  _status: "synced",
+  id: "047940fe-d2fd-4314-b636-b4a952ee0043",
+  last_modified: "1541615610052",
+  schema: "1541615609018",
+  breachAlertURL: "https://monitor.firefox.com/breach-details/ABC-Example",
+};
+
+
+const TEST_BREACHES_MAP = new Map();
+TEST_BREACHES_MAP.set(TEST_LOGIN_1.guid, TEST_BREACH);
+
+add_setup(async () => {
+  let templateFrame = document.getElementById("templateFrame");
+  let displayEl = document.getElementById("display");
+  await importDependencies(templateFrame, displayEl);
+
+  gLoginList = document.createElement("login-list");
+  displayEl.appendChild(gLoginList);
+});
+
+add_task(async function test_empty_list() {
+  ok(gLoginList, "loginList exists");
+  is(gLoginList.textContent, "", "Initially empty");
+  gLoginList.classList.add("no-logins");
+  let loginListBox = gLoginList.shadowRoot.querySelector("ol");
+  let introText = gLoginList.shadowRoot.querySelector(".intro");
+  let emptySearchText = gLoginList.shadowRoot.querySelector(".empty-search-message");
+  ok(isHidden(loginListBox), "The login-list ol should be hidden when there are no logins");
+  ok(!isHidden(introText), "The intro text should be visible when the list is empty");
+  ok(isHidden(emptySearchText), "The empty-search text should be hidden when there are no logins");
+
+  gLoginList.classList.add("create-login-selected");
+  ok(!isHidden(loginListBox), "The login-list ol should be visible when the create-login mode is active");
+  ok(isHidden(introText), "The intro text should be hidden when the create-login mode is active");
+  ok(isHidden(emptySearchText), "The empty-search text should be hidden when the create-login mode is active");
+  gLoginList.classList.remove("create-login-selected");
+
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "foo",
+  }));
+  ok(isHidden(loginListBox), "The login-list ol should be hidden when there are no logins");
+  ok(!isHidden(introText), "The intro text should be visible when the list is empty");
+  ok(isHidden(emptySearchText), "The empty-search text should be hidden when there are no logins even if a filter is applied");
+
+  // Clean up state for next test
+  gLoginList.classList.remove("no-logins");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "",
+  }));
+});
+
+add_task(async function test_keyboard_navigation() {
+  let logins = [];
+  for (let i = 0; i < 20; i++) {
+    let suffix = i % 2 ? "odd" : "even";
+    logins.push(Object.assign({}, TEST_LOGIN_1, {
+      guid: "" + i,
+      username: `testuser-${suffix}-${i}`,
+      password: `testpass-${suffix}-${i}`,
+    }));
+  }
+  gLoginList.setLogins(logins);
+  let ol = gLoginList.shadowRoot.querySelector("ol");
+  is(ol.querySelectorAll(".login-list-item[data-guid]").length, 20, "there should be 20 logins in the list");
+  is(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])").length, 20, "all logins should be visible");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "odd",
+  }));
+  is(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])").length, 10, "half of the logins in the list");
+
+  while (document.activeElement != gLoginList &&
+         gLoginList.shadowRoot.querySelector("#login-sort") != gLoginList.shadowRoot.activeElement) {
+    sendKey("TAB");
+    await new Promise(resolve => requestAnimationFrame(resolve));
+  }
+  sendKey("TAB");
+  let loginSort = gLoginList.shadowRoot.querySelector("#login-sort");
+  await SimpleTest.promiseWaitForCondition(() => loginSort == gLoginList.shadowRoot.activeElement,
+    "waiting for login-sort to get focus");
+  ok(loginSort == gLoginList.shadowRoot.activeElement, "#login-sort should be focused after tabbing to it");
+
+  sendKey("TAB");
+  await SimpleTest.promiseWaitForCondition(() => ol.matches(":focus"),
+    "waiting for 'ol' to get focus");
+  ok(ol.matches(":focus"), "'ol' should be focused after tabbing to it");
+
+  let selectedGuid = ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[0].dataset.guid;
+  let loginSelectedEvent = null;
+  gLoginList.addEventListener("AboutLoginsLoginSelected", event => loginSelectedEvent = event, {once: true});
+  sendKey("RETURN");
+  is(ol.querySelector(".selected").dataset.guid, selectedGuid, "item should be marked as selected");
+  ok(loginSelectedEvent, "AboutLoginsLoginSelected event should be dispatched on pressing Enter");
+  is(loginSelectedEvent.detail.guid, selectedGuid, "event should have expected login attached");
+
+  for (let [keyFwd, keyRev] of [["LEFT", "RIGHT"], ["DOWN", "UP"]]) {
+    sendKey(keyFwd);
+    await SimpleTest.promiseWaitForCondition(() => ol.getAttribute("aria-activedescendant") == ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[1].id,
+      `waiting for second item in list to get focused (${keyFwd})`);
+    ok(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[1].classList.contains("keyboard-selected"), `second item should be marked as keyboard-selected (${keyFwd})`);
+
+    sendKey(keyRev);
+    await SimpleTest.promiseWaitForCondition(() => ol.getAttribute("aria-activedescendant") == ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[0].id,
+      `waiting for first item in list to get focused (${keyRev})`);
+    ok(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[0].classList.contains("keyboard-selected"), `first item should be marked as keyboard-selected (${keyRev})`);
+  }
+
+  sendKey("DOWN");
+  await SimpleTest.promiseWaitForCondition(() => ol.getAttribute("aria-activedescendant") == ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[1].id,
+    `waiting for second item in list to get focused (DOWN)`);
+  ok(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[1].classList.contains("keyboard-selected"), `second item should be marked as keyboard-selected (DOWN)`);
+  selectedGuid = ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[1].dataset.guid;
+
+  synthesizeKey("VK_DOWN", { repeat: 5 });
+  ok(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[6].classList.contains("keyboard-selected"), `sixth item should be marked as keyboard-selected after 5 DOWN repeats`);
+  synthesizeKey("VK_UP", { repeat: 5 });
+  ok(ol.querySelectorAll(".login-list-item[data-guid]:not([hidden])")[1].classList.contains("keyboard-selected"), `second item should be marked as keyboard-selected again after 5 UP repeats`);
+
+  loginSelectedEvent = null;
+  gLoginList.addEventListener("AboutLoginsLoginSelected", event => loginSelectedEvent = event, {once: true});
+  sendKey("RETURN");
+  is(ol.querySelector(".selected").dataset.guid, selectedGuid, "item should be marked as selected");
+  ok(loginSelectedEvent, "AboutLoginsLoginSelected event should be dispatched on pressing Enter");
+  is(loginSelectedEvent.detail.guid, selectedGuid, "event should have expected login attached");
+
+  // Clean up state for next test
+  gLoginList.classList.remove("no-logins");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "",
+  }));
+});
+
+add_task(async function test_empty_login_username_in_list() {
+  // Clear the selection so the 'new' login will be in the list too.
+  window.dispatchEvent(new CustomEvent("AboutLoginsLoginSelected", {
+    detail: {},
+  }));
+
+  gLoginList.setLogins([TEST_LOGIN_3]);
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems.length, 1, "The one stored login should be displayed");
+  is(loginListItems[0].dataset.guid, TEST_LOGIN_3.guid, "login-list-item should have correct guid attribute");
+  let loginUsername = loginListItems[0].querySelector(".username");
+  is(loginUsername.getAttribute("data-l10n-id"), "login-list-item-subtitle-missing-username", "login should show missing username text");
+});
+
+add_task(async function test_populated_list() {
+  gLoginList.setLogins([TEST_LOGIN_1, TEST_LOGIN_2]);
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems.length, 2, "The two stored logins should be displayed");
+  is(loginListItems[0].getAttribute("role"), "option", "Each login-list-item should have role='option'");
+  is(loginListItems[0].dataset.guid, TEST_LOGIN_1.guid, "login-list-item should have correct guid attribute");
+  is(loginListItems[0].querySelector(".title").textContent, TEST_LOGIN_1.title,
+     "login-list-item origin should match");
+  is(loginListItems[0].querySelector(".username").textContent, TEST_LOGIN_1.username,
+     "login-list-item username should match");
+  ok(loginListItems[0].classList.contains("selected"), "The first item should be selected by default");
+  ok(!loginListItems[1].classList.contains("selected"), "The second item should not be selected by default");
+  loginListItems[0].click();
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems.length, 2, "After selecting one, only the two stored logins should be displayed");
+  ok(loginListItems[0].classList.contains("selected"), "The first item should be selected");
+  ok(!loginListItems[1].classList.contains("selected"), "The second item should still not be selected");
+});
+
+add_task(async function test_breach_indicator() {
+  gLoginList.setLogins([TEST_LOGIN_1, TEST_LOGIN_2, Object.assign({}, TEST_LOGIN_3, {password: TEST_LOGIN_1.password})]);
+  gLoginList.setBreaches(TEST_BREACHES_MAP);
+  let vulnerableLogins = new Map();
+  vulnerableLogins.set(TEST_LOGIN_1.guid, true);
+  vulnerableLogins.set(TEST_LOGIN_3.guid, true);
+  gLoginList.setVulnerableLogins(vulnerableLogins);
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  let alertIcon = loginListItems[0].querySelector(".alert-icon");
+  is(loginListItems[0].dataset.guid, TEST_LOGIN_1.guid, "The first login should be TEST_LOGIN_1");
+  ok(!loginListItems[0].classList.contains("vulnerable"), "The first login should not have the .vulnerable class");
+  ok(loginListItems[0].classList.contains("breached"), "The first login should have the .breached class.");
+  is(alertIcon.src, "chrome://browser/content/aboutlogins/icons/breached-website.svg", "The alert icon should be the breach warning icon");
+  is(loginListItems[1].dataset.guid, TEST_LOGIN_3.guid, "The second login should be TEST_LOGIN_3");
+  ok(loginListItems[1].classList.contains("vulnerable"), "The second login should have the .vulnerable class");
+  ok(!loginListItems[1].classList.contains("breached"), "The second login should not have the .breached class");
+  alertIcon = loginListItems[1].querySelector(".alert-icon");
+  is(alertIcon.src, "chrome://browser/content/aboutlogins/icons/vulnerable-password.svg", "The alert icon should be the vulnerable password icon");
+  is(loginListItems[2].dataset.guid, TEST_LOGIN_2.guid, "The third login should be TEST_LOGIN_2");
+  alertIcon = loginListItems[2].querySelector(".alert-icon");
+  ok(!loginListItems[2].classList.contains("vulnerable"), "The third login should not have the .vulnerable class");
+  ok(!loginListItems[2].classList.contains("breached"), "The third login should not have the .breached class");
+  is(alertIcon.src, "chrome://mochitests/content/chrome/browser/components/aboutlogins/tests/chrome/test_login_list.html",  "The alert icon src should be empty");
+});
+
+function assertCount({ count, total }) {
+  const countSpan = gLoginList.shadowRoot.querySelector(".count");
+  const actual = JSON.parse(countSpan.getAttribute("data-l10n-args"));
+  isDeeply(actual, { count, total }, "Login count updated");
+}
+
+add_task(async function test_filtered_list() {
+  function findItemFromUsername(list, username) {
+    for (let item of list) {
+      if ((item._cachedUsername || (item._cachedUsername = item.querySelector('.username').textContent)) == username) {
+        return item;
+      }
+    }
+    ok(false, `The ${username} wasn't in the list of logins.`)
+    return list[0];
+  }
+  gLoginList.setLogins([TEST_LOGIN_1, TEST_LOGIN_2]);
+  let emptySearchText = gLoginList.shadowRoot.querySelector(".empty-search-message");
+  ok(isHidden(emptySearchText), "The empty search text should be hidden when there are results in the list");
+  is(gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])").length, 2, "Both logins should be visible");
+
+  assertCount({ count: 2, total: 2 });
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "user1",
+  }));
+  assertCount({ count: 1, total: 2 });
+  ok(isHidden(emptySearchText), "The empty search text should be hidden when there are results in the list");
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]");
+  is(loginListItems[0].querySelector(".username").textContent, "user1", "user1 is expected first");
+  ok(!loginListItems[0].hidden, "user1 should remain visible");
+  ok(loginListItems[1].hidden, "user2 should be hidden");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "user2",
+  }));
+  assertCount({ count: 1, total: 2 });
+  ok(isHidden(emptySearchText), "The empty search text should be hidden when there are results in the list");
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]");
+  ok(findItemFromUsername(loginListItems, 'user1').hidden, "user1 should be hidden");
+  ok(!findItemFromUsername(loginListItems, 'user2').hidden, "user2 should be visible");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "user",
+  }));
+  assertCount({ count: 2, total: 2 });
+  ok(!gLoginList._sortSelect.disabled, "The sort should be enabled when there are visible logins in the list");
+  ok(isHidden(emptySearchText), "The empty search text should be hidden when there are results in the list");
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]");
+  ok(!findItemFromUsername(loginListItems, 'user1').hidden, "user1 should be visible");
+  ok(!findItemFromUsername(loginListItems, 'user2').hidden, "user2 should be visible");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "foo",
+  }));
+  assertCount({ count: 0, total: 2 });
+  ok(gLoginList._sortSelect.disabled, "The sort should be disabled when there are no visible logins in the list");
+  ok(!isHidden(emptySearchText), "The empty search text should be visible when there are no results in the list");
+  isnot(gLoginList.shadowRoot.querySelector(".container > ol").getAttribute("aria-activedescendant"), "new-login-list-item", "new-login-list-item shouldn't be the active descendant");
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]");
+  ok(findItemFromUsername(loginListItems, 'user1').hidden, "user1 should be hidden");
+  ok(findItemFromUsername(loginListItems, 'user2').hidden, "user2 should be hidden");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "",
+  }));
+  ok(!gLoginList._sortSelect.disabled, "The sort should be re-enabled when there are visible logins in the list");
+  ok(isHidden(emptySearchText), "The empty search text should be hidden when there are results in the list");
+  assertCount({ count: 2, total: 2 });
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]");
+  ok(!findItemFromUsername(loginListItems, 'user1').hidden, "user1 should be visible");
+  ok(!findItemFromUsername(loginListItems, 'user2').hidden, "user2 should be visible");
+
+  info("Add an HTTP Auth login");
+  gLoginList.setLogins([TEST_LOGIN_1, TEST_LOGIN_2, TEST_HTTP_AUTH_LOGIN_1]);
+  await asyncElementRendered();
+  assertCount({ count: 3, total: 3 });
+  info("Filter by httpRealm");
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "realm",
+  }));
+  assertCount({ count: 1, total: 3 });
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]");
+  ok(findItemFromUsername(loginListItems, 'user1').hidden, "user1 should be hidden");
+  ok(findItemFromUsername(loginListItems, 'user2').hidden, "user2 should be hidden");
+  ok(!findItemFromUsername(loginListItems, 'http_auth_user').hidden, "http_auth_user should be visible");
+
+  gLoginList.setLogins([TEST_LOGIN_1, TEST_LOGIN_2]);
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "",
+  }));
+  await asyncElementRendered();
+});
+
+add_task(async function test_initial_empty_results() {
+  // Create a new instance to reset state
+  gLoginList.remove();
+  gLoginList = document.createElement("login-list");
+  document.getElementById("display").appendChild(gLoginList);
+  await asyncElementRendered();
+
+  let emptySearchText = gLoginList.shadowRoot.querySelector(".empty-search-message");
+
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "foo",
+  }));
+  assertCount({ count: 0, total: 0 });
+  ok(gLoginList._sortSelect.disabled, "The sort should be disabled when there are no visible logins in the list");
+  ok(!isHidden(emptySearchText), "The empty search text should be visible when there are no results in the list");
+  isnot(gLoginList.shadowRoot.querySelector(".container > ol").getAttribute("aria-activedescendant"), "new-login-list-item", "new-login-list-item shouldn't be the active descendant");
+  ok(gLoginList.shadowRoot.querySelector("#new-login-list-item").hidden, "new-login-list-item should be @hidden");
+
+  gLoginList.setLogins([TEST_LOGIN_1, TEST_LOGIN_2]);
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    bubbles: true,
+    detail: "",
+  }));
+  await asyncElementRendered();
+});
+
+add_task(async function test_login_modified() {
+  let modifiedLogin = Object.assign(TEST_LOGIN_1, {username: "user11"});
+  gLoginList.loginModified(modifiedLogin);
+  await asyncElementRendered();
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]:not([hidden])");
+  is(loginListItems.length, 2, "Both logins should be displayed");
+  is(loginListItems[0].dataset.guid, TEST_LOGIN_1.guid, "login-list-item should have correct guid attribute");
+  is(loginListItems[0].querySelector(".title").textContent, TEST_LOGIN_1.title,
+     "login-list-item origin should match");
+  is(loginListItems[0].querySelector(".username").textContent, modifiedLogin.username,
+     "login-list-item username should have been updated");
+  is(loginListItems[1].querySelector(".username").textContent, TEST_LOGIN_2.username,
+     "login-list-item2 username should remain unchanged");
+});
+
+add_task(async function test_login_added() {
+  info("selected sort: " + gLoginList.shadowRoot.getElementById("login-sort").selectedIndex);
+
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems.length, 2, "Should have two logins at start of test");
+  let newLogin = Object.assign({}, TEST_LOGIN_1, {title: "example2.example.com", guid: "111222"});
+  gLoginList.loginAdded(newLogin);
+  await asyncElementRendered();
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems.length, 3, "New login should be added to the list");
+  is(loginListItems[0].dataset.guid, TEST_LOGIN_1.guid, "login-list-item1 should have correct guid attribute");
+  is(loginListItems[1].dataset.guid, TEST_LOGIN_2.guid, "login-list-item2 should have correct guid attribute");
+  is(loginListItems[2].dataset.guid, newLogin.guid, "login-list-item3 should have correct guid attribute");
+  is(loginListItems[2].querySelector(".title").textContent, newLogin.title,
+     "login-list-item origin should match");
+  is(loginListItems[2].querySelector(".username").textContent, newLogin.username,
+     "login-list-item username should have been updated");
+});
+
+add_task(async function test_login_removed() {
+  gLoginList.loginRemoved({guid: "111222"});
+  await asyncElementRendered();
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems.length, 2, "New login should be removed from the list");
+  is(loginListItems[0].dataset.guid, TEST_LOGIN_1.guid, "login-list-item1 should have correct guid attribute");
+  is(loginListItems[1].dataset.guid, TEST_LOGIN_2.guid, "login-list-item2 should have correct guid attribute");
+});
+
+add_task(async function test_login_added_filtered() {
+  assertCount({ count: 2, total: 2 });
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    detail: "user1",
+  }));
+  assertCount({ count: 1, total: 2 });
+
+  let newLogin = Object.assign({}, TEST_LOGIN_1, {title: "example2.example.com", username: "user22", guid: "111222"});
+  gLoginList.loginAdded(newLogin);
+  await asyncElementRendered();
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]");
+  is(loginListItems.length, 3, "New login should be added to the list");
+  is(loginListItems[0].dataset.guid, TEST_LOGIN_1.guid, "login-list-item1 should have correct guid attribute");
+  is(loginListItems[1].dataset.guid, TEST_LOGIN_2.guid, "login-list-item2 should have correct guid attribute");
+  is(loginListItems[2].dataset.guid, newLogin.guid, "login-list-item3 should have correct guid attribute");
+  ok(!loginListItems[0].hidden, "login-list-item1 should be visible");
+  ok(loginListItems[1].hidden, "login-list-item2 should be hidden");
+  ok(loginListItems[2].hidden, "login-list-item3 should be hidden");
+  assertCount({ count: 1, total: 3 });
+});
+
+add_task(async function test_sorted_list() {
+  function dispatchChangeEvent(target) {
+    let event = document.createEvent("UIEvent");
+    event.initEvent("change", true, true);
+    target.dispatchEvent(event);
+  }
+
+  // Clear the filter
+  window.dispatchEvent(new CustomEvent("AboutLoginsFilterLogins", {
+    detail: "",
+  }));
+
+  // Clear the selection so the 'new' login will be in the list too.
+  window.dispatchEvent(new CustomEvent("AboutLoginsLoginSelected", {
+    detail: {},
+  }));
+
+  // make sure that the logins have distinct orderings based on sort order
+  let [guid1, guid2, guid3] = gLoginList._loginGuidsSortedOrder;
+  gLoginList._logins[guid1].login.timeLastUsed = 0;
+  gLoginList._logins[guid2].login.timeLastUsed = 1;
+  gLoginList._logins[guid3].login.timeLastUsed = 2;
+  gLoginList._logins[guid1].login.title = "a";
+  gLoginList._logins[guid2].login.title = "b";
+  gLoginList._logins[guid3].login.title = "c";
+  gLoginList._logins[guid1].login.username = "a";
+  gLoginList._logins[guid2].login.username = "b";
+  gLoginList._logins[guid3].login.username = "c";
+  gLoginList._logins[guid1].login.timePasswordChanged = 1;
+  gLoginList._logins[guid2].login.timePasswordChanged = 2;
+  gLoginList._logins[guid3].login.timePasswordChanged = 0;
+
+  // sort by last used
+  let loginSort = gLoginList.shadowRoot.getElementById("login-sort");
+  loginSort.value = "last-used";
+  dispatchChangeEvent(loginSort);
+  let loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems.length, 3, "The list should contain the three stored logins");
+  let timeUsed1 = gLoginList._logins[loginListItems[0].dataset.guid].login.timeLastUsed;
+  let timeUsed2 = gLoginList._logins[loginListItems[1].dataset.guid].login.timeLastUsed;
+  let timeUsed3 = gLoginList._logins[loginListItems[2].dataset.guid].login.timeLastUsed;
+  is(timeUsed1 > timeUsed2, true, "Logins sorted by timeLastUsed. First: " + timeUsed1 + "; Second: " + timeUsed2);
+  is(timeUsed2 > timeUsed3, true, "Logins sorted by timeLastUsed. Second: " + timeUsed2 + "; Third: " + timeUsed3);
+
+  // sort by title
+  loginSort.value = "name";
+  dispatchChangeEvent(loginSort);
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  let title1 = gLoginList._logins[loginListItems[0].dataset.guid].login.title;
+  let title2 = gLoginList._logins[loginListItems[1].dataset.guid].login.title;
+  let title3 = gLoginList._logins[loginListItems[2].dataset.guid].login.title;
+  is(title1.localeCompare(title2), -1, "Logins sorted by title. First: " + title1 + "; Second: " + title2);
+  is(title2.localeCompare(title3), -1, "Logins sorted by title. Second: " + title2 + "; Third: " + title3);
+
+  // sort by title in reverse alphabetical order
+  loginSort.value = "name-reverse";
+  dispatchChangeEvent(loginSort);
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  title1 = gLoginList._logins[loginListItems[0].dataset.guid].login.title;
+  title2 = gLoginList._logins[loginListItems[1].dataset.guid].login.title;
+  title3 = gLoginList._logins[loginListItems[2].dataset.guid].login.title;
+  let testDescription = "Logins sorted by title in reverse alphabetical order."
+  is(title1.localeCompare(title2), 1, `${testDescription} First: ${title2}; Second: ${title1}`);
+  is(title2.localeCompare(title3), 1, `${testDescription} Second: ${title3}; Third: ${title2}`);
+
+  // sort by last changed
+  loginSort.value = "last-changed";
+  dispatchChangeEvent(loginSort);
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  let pwChanged1 = gLoginList._logins[loginListItems[0].dataset.guid].login.timePasswordChanged;
+  let pwChanged2 = gLoginList._logins[loginListItems[1].dataset.guid].login.timePasswordChanged;
+  let pwChanged3 = gLoginList._logins[loginListItems[2].dataset.guid].login.timePasswordChanged;
+  is(pwChanged1 > pwChanged2, true, "Logins sorted by timePasswordChanged. First: " + pwChanged1 + "; Second: " + pwChanged2);
+  is(pwChanged2 > pwChanged3, true, "Logins sorted by timePasswordChanged. Second: " + pwChanged2 + "; Third: " + pwChanged3);
+
+  // sort by breached when there are breached logins
+  gLoginList.setBreaches(TEST_BREACHES_MAP);
+  loginSort.value = "alerts";
+  let vulnerableLogins = new Map();
+  gLoginList.setVulnerableLogins(vulnerableLogins);
+  dispatchChangeEvent(loginSort);
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  is(loginListItems[0].classList.contains("breached"), true, "Breached login should be displayed at top of list");
+  is(!loginListItems[1].classList.contains("breached"), true, "Non-breached login should be displayed below breached");
+
+  // sort by username
+  loginSort.value = "username";
+  dispatchChangeEvent(loginSort);
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  let username1 = gLoginList._logins[loginListItems[0].dataset.guid].login.username;
+  let username2 = gLoginList._logins[loginListItems[1].dataset.guid].login.username;
+  let username3 = gLoginList._logins[loginListItems[2].dataset.guid].login.username;
+  is(username1.localeCompare(username2), -1, "Logins sorted by username. First: " + username1 + "; Second: " + username2);
+  is(username2.localeCompare(username3), -1, "Logins sorted by username. Second: " + username2 + "; Third: " + username3);
+
+  // sort by username in reverse alphabetical order
+  loginSort.value = "username-reverse";
+  dispatchChangeEvent(loginSort);
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  username1 = gLoginList._logins[loginListItems[0].dataset.guid].login.username;
+  username2 = gLoginList._logins[loginListItems[1].dataset.guid].login.username;
+  username3 = gLoginList._logins[loginListItems[2].dataset.guid].login.username;
+  testDescription = "Logins sorted by username in reverse alphabetical order.";
+  is(username3.localeCompare(username2), -1, `${testDescription} First: ${username3} Second: ${username2}`);
+  is(username2.localeCompare(username1), -1, `${testDescription} Second: ${username2} Third: ${username1}`);
+
+  // sort by name when there are no breached logins
+  gLoginList.setBreaches(new Map());
+  loginSort.value = "alerts";
+  dispatchChangeEvent(loginSort);
+  loginListItems = gLoginList.shadowRoot.querySelectorAll(".login-list-item:not(#new-login-list-item, [hidden])");
+  title1 = gLoginList._logins[loginListItems[0].dataset.guid].login.title;
+  title2 = gLoginList._logins[loginListItems[1].dataset.guid].login.title;
+  is(title1.localeCompare(title2), -1, "Logins should be sorted alphabetically by hostname");
+});
+
+add_task(async function test_login_list_item_removed_next_selected() {
+  let logins = [];
+  for (let i = 0; i < 12; i++) {
+    let group = i % 2 ? "BB" : "AA";
+    // Create logins of the form `jared0AAa@example.com`,
+    // `jared1BBb@example.com`, `jared2AAc@example.com`, etc.
+    logins.push({
+      guid: `${i}`,
+      username: `jared${i}${group}${String.fromCharCode(97 + i)}@example.com`,
+      password: "omgsecret!!1",
+      origin: "https://www.example.com",
+    });
+  }
+
+  gLoginList.setLogins(logins);
+  let visibleLogins = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]:not([hidden])");
+  await SimpleTest.promiseWaitForCondition(() => {
+    return visibleLogins.length == 12;
+  }, "Waiting for all logins to be visible");
+  is(gLoginList._selectedGuid, logins[0].guid, "login0 should be selected by default");
+
+  window.dispatchEvent(
+    new CustomEvent("AboutLoginsFilterLogins", {
+      bubbles: true,
+      detail: "BB",
+    })
+  );
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    visibleLogins = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]:not([hidden])");
+    return visibleLogins.length == 6;
+  }, "Only logins with BB in the username should be visible, visible count: " + visibleLogins.length);
+
+  is(gLoginList._selectedGuid, logins[0].guid, "login0 should still be selected after filtering");
+
+  gLoginList.loginRemoved({guid: logins[0].guid});
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    return gLoginList._loginGuidsSortedOrder.length == 11;
+  }, "Waiting for login to get removed");
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    visibleLogins = gLoginList.shadowRoot.querySelectorAll(".login-list-item[data-guid]:not([hidden])");
+    return visibleLogins.length == 6;
+  }, "the number of visible logins should not change, got " + visibleLogins.length);
+  is(gLoginList._selectedGuid, logins[1].guid,
+     "login1 should be selected after delete since the deleted login was not visible and login1 was the first in the list");
+
+  let loginToSwitchTo = gLoginList._logins[visibleLogins[1].dataset.guid].login;
+  window.dispatchEvent(
+    new CustomEvent("AboutLoginsLoginSelected", {
+      bubbles: true,
+      detail: loginToSwitchTo,
+    })
+  );
+  is(gLoginList._selectedGuid, loginToSwitchTo.guid, "login3 should be selected");
+
+  gLoginList.loginRemoved({guid: logins[3].guid});
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    return gLoginList._loginGuidsSortedOrder.length == 10;
+  }, "Waiting for login to get removed");
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    visibleLogins = gLoginList.shadowRoot.querySelectorAll(
+      ".login-list-item[data-guid]:not([hidden])"
+    );
+    return visibleLogins.length == 5;
+  }, "the number of filtered logins should decrease by 1");
+  is(gLoginList._selectedGuid, visibleLogins[0].dataset.guid, "the first login should now be selected");
+
+  gLoginList.loginRemoved({guid: logins[1].guid});
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    return gLoginList._loginGuidsSortedOrder.length == 9;
+  }, "Waiting for login to get removed");
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    visibleLogins = gLoginList.shadowRoot.querySelectorAll(
+      ".login-list-item[data-guid]:not([hidden])"
+    );
+    return visibleLogins.length == 4;
+  }, "the number of filtered logins should decrease by 1");
+  is(gLoginList._selectedGuid, visibleLogins[0].dataset.guid, "the first login should now still be selected");
+
+  loginToSwitchTo = gLoginList._logins[visibleLogins[3].dataset.guid].login;
+  window.dispatchEvent(
+    new CustomEvent("AboutLoginsLoginSelected", {
+      bubbles: true,
+      detail: loginToSwitchTo,
+    })
+  );
+  is(gLoginList._selectedGuid, visibleLogins[3].dataset.guid, "the last login should now still be selected");
+
+  gLoginList.loginRemoved({guid: logins[10].guid});
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    return gLoginList._loginGuidsSortedOrder.length == 8;
+  }, "Waiting for login to get removed");
+
+  await SimpleTest.promiseWaitForCondition(() => {
+    visibleLogins = gLoginList.shadowRoot.querySelectorAll(
+      ".login-list-item[data-guid]:not([hidden])"
+    );
+    return visibleLogins.length == 4;
+  }, "the number of filtered logins should decrease by 1");
+  is(gLoginList._selectedGuid, visibleLogins[3].dataset.guid, "the last login should now be selected");
+
+  loginToSwitchTo = gLoginList._logins[visibleLogins[2].dataset.guid].login;
+  window.dispatchEvent(
+    new CustomEvent("AboutLoginsLoginSelected", {
+      bubbles: true,
+      detail: loginToSwitchTo,
+    })
+  );
+  is(gLoginList._selectedGuid, visibleLogins[2].dataset.guid, "the last login should now still be selected");
+});
+</script>
+
+</body>
+</html>
diff --git a/browser/components/aboutlogins/tests/chrome/test_menu_button.html b/browser/components/aboutlogins/tests/chrome/test_menu_button.html
new file mode 100644
index 0000000000..2beede09f1
--- /dev/null
+++ b/browser/components/aboutlogins/tests/chrome/test_menu_button.html
@@ -0,0 +1,260 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+Test the menu-button component
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test the menu-button component</title>
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+  <script type="module" src="chrome://browser/content/aboutlogins/components/menu-button.mjs"></script>
+  <script src="aboutlogins_common.js"></script>
+
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+  <p id="display">
+  </p>
+<div id="content" style="display: none">
+  <iframe id="templateFrame" src="chrome://browser/content/aboutlogins/aboutLogins.html"
+          sandbox="allow-same-origin"></iframe>
+</div>
+<pre id="test">
+</pre>
+<script>
+/** Test the menu-button component **/
+
+let gMenuButton;
+add_setup(async () => {
+  let templateFrame = document.getElementById("templateFrame");
+  let displayEl = document.getElementById("display");
+  await importDependencies(templateFrame, displayEl);
+
+  gMenuButton = document.createElement("menu-button");
+  displayEl.appendChild(gMenuButton);
+  gMenuButton.style.marginInlineStart = "100px";
+
+  isnot(document.activeElement, gMenuButton, "menu-button should not be focused by default");
+  while (document.activeElement != gMenuButton) {
+    sendKey("TAB");
+    await new Promise(resolve => requestAnimationFrame(resolve));
+  }
+});
+
+add_task(async function test_menu_click_button () {
+  let menu = gMenuButton.shadowRoot.querySelector(".menu");
+  let menuButton = gMenuButton.shadowRoot.querySelector(".menu-button");
+  ok(menu.hidden, "menu should be hidden before being clicked");
+  await synthesizeMouseAtCenter(menuButton, {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(!menu.hidden, "menu should be visible after clicked");
+
+  let menuListSeparators = gMenuButton.shadowRoot.querySelectorAll(".menuitem-separator");
+  await synthesizeMouseAtCenter(menuListSeparators[0], {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(!menu.hidden, "menu should still be visible after menu separator has been clicked");
+
+  let menuListButtons = gMenuButton.shadowRoot.querySelectorAll(".menuitem-button");
+  await synthesizeMouseAtCenter(menuListButtons[0], {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(menu.hidden, "menu should be hidden after a button has been clicked");
+});
+
+add_task(async function test_menu_click_outside () {
+  let menu = gMenuButton.shadowRoot.querySelector(".menu");
+  let menuButton = gMenuButton.shadowRoot.querySelector(".menu-button");
+  ok(menu.hidden, "menu should be hidden before being clicked");
+  await synthesizeMouseAtCenter(menuButton, {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(!menu.hidden, "menu should be visible after clicked");
+
+  let menuListSeparators = gMenuButton.shadowRoot.querySelectorAll(".menuitem-separator");
+  await synthesizeMouseAtCenter(menuListSeparators[0], {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(!menu.hidden, "menu should still be visible after menu separator has been clicked");
+
+  let outsideEl = document.getElementById("test");
+  await synthesizeMouseAtCenter(outsideEl, {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(menu.hidden, "menu should be hidden after a click outside of the menu has been clicked");
+
+  for (let key of ["KEY_ArrowDown", "KEY_ArrowUp"]) {
+    synthesizeKey(key);
+    await new Promise(resolve => requestAnimationFrame(resolve));
+    ok(menu.hidden, `menu should still be hidden when ${key} is entered`);
+  }
+});
+
+add_task(async function test_menu_esc_after_click_disabled_item () {
+  let menu = gMenuButton.shadowRoot.querySelector(".menu");
+  let menuButton = gMenuButton.shadowRoot.querySelector(".menu-button");
+  ok(menu.hidden, "menu should be hidden before being clicked");
+  await synthesizeMouseAtCenter(menuButton, {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(!menu.hidden, "menu should be visible after clicked");
+
+  let menuListSeparators = gMenuButton.shadowRoot.querySelectorAll(".menuitem-separator");
+  await synthesizeMouseAtCenter(menuListSeparators[0], {});
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(!menu.hidden, "menu should still be visible after menu separator has been clicked");
+
+  sendKey("ESCAPE");
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(menu.hidden, "menu should be hidden after pressing 'escape'");
+});
+
+add_task(async function test_menu_open_close() {
+  is(document.activeElement, gMenuButton, "menu-button should be focused to start the test");
+
+  let menu = gMenuButton.shadowRoot.querySelector(".menu");
+  is(true, menu.hidden, "menu should be hidden before pressing 'space'");
+  sendKey("SPACE");
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(!menu.hidden, "menu should be visible after pressing 'space'");
+
+  sendKey("ESCAPE");
+  await new Promise(resolve => requestAnimationFrame(resolve));
+  ok(menu.hidden, "menu should be hidden after pressing 'escape'");
+  is(gMenuButton.shadowRoot.activeElement, gMenuButton.shadowRoot.querySelector(".menu-button"),
+    "the .menu-button should be focused after closing the menu via keyboard");
+
+  sendKey("RETURN");
+  let firstVisibleItem = gMenuButton.shadowRoot.querySelector(".menuitem-button:not([hidden])");
+  await SimpleTest.promiseWaitForCondition(() => firstVisibleItem.matches(":focus"),
+    "waiting for firstVisibleItem to get focus");
+
+  ok(!menu.hidden, "menu should be visible after pressing 'return'");
+  ok(firstVisibleItem.matches(":focus"), "firstVisibleItem should be focused after opening popup");
+
+  synthesizeKey("VK_TAB", { shiftKey: true });
+  await SimpleTest.promiseWaitForCondition(() => !firstVisibleItem.matches(":focus"),
+    "waiting for firstVisibleItem to lose focus");
+  ok(!firstVisibleItem.matches(":focus"), "firstVisibleItem should lose focus after tabbing away from it");
+  sendKey("TAB");
+  await SimpleTest.promiseWaitForCondition(() => firstVisibleItem.matches(":focus"),
+    "waiting for firstVisibleItem to get focus again");
+  ok(firstVisibleItem.matches(":focus"), "firstVisibleItem should be focused after tabbing to it again");
+  if (SpecialPowers.getBoolPref("signon.management.page.fileImport.enabled")) {
+    sendKey("TAB"); // Import from file
+  }
+  sendKey("TAB"); // Export
+  sendKey("TAB"); // Remove All Logins
+
+  if (navigator.platform == "Win32" || navigator.platform == "MacIntel") {
+    // The Import menuitem is only visible on Windows/macOS, where we will need another Tab
+    // press to get to the Preferences item.
+    let preferencesItem = gMenuButton.shadowRoot.querySelector(".menuitem-preferences");
+    sendKey("DOWN");
+    await SimpleTest.promiseWaitForCondition(() => preferencesItem.matches(":focus"),
+      "waiting for preferencesItem to gain focus");
+    ok(preferencesItem.matches(":focus"), `.menuitem-preferences should be now be focused (DOWN)`);
+    sendKey("UP");
+    await SimpleTest.promiseWaitForCondition(() => !preferencesItem.matches(":focus"),
+      `waiting for preferencesItem to lose focus (UP)`);
+    ok(!preferencesItem.matches(":focus"), `.menuitem-preferences should lose focus after pressing up`);
+
+    sendKey("TAB");
+    await SimpleTest.promiseWaitForCondition(() => preferencesItem.matches(":focus"),
+      "waiting for preferencesItem to get focus");
+    ok(preferencesItem.matches(":focus"), ".menuitem-preferences should be focused after tabbing to it");
+  }
+
+  let openPreferencesEvent = null;
+  ok(!menu.hidden, "menu should be visible before pressing 'space' on .menuitem-preferences");
+  window.addEventListener(
+    "AboutLoginsOpenPreferences",
+    event => openPreferencesEvent = event,
+    {once: true}
+  );
+  sendKey("SPACE");
+  ok(openPreferencesEvent, "AboutLoginsOpenPreferences event should be dispatched after pressing 'space' on .menuitem-preferences");
+  ok(menu.hidden, "menu should be hidden after pressing 'space' on .menuitem-preferences");
+
+  // Clean up task
+  sendKey("TAB");
+  synthesizeKey("VK_TAB", { shiftKey: true });
+});
+
+add_task(async function test_menu_keyboard_cycling() {
+  function waitForElementFocus(selector) {
+    return SimpleTest.promiseWaitForCondition(
+      () => gMenuButton.shadowRoot.querySelector(selector).matches(":focus"),
+      `waiting for ${selector} to be focused`
+    );
+  }
+
+  function getFocusedMenuItem() {
+    return gMenuButton.shadowRoot.querySelector(".menuitem-button:focus");
+  }
+
+  let allItems = [
+    "menuitem-export",
+    "menuitem-remove-all-logins",
+    "menuitem-preferences",
+    "menuitem-help",
+  ];
+  if (SpecialPowers.getBoolPref("signon.management.page.fileImport.enabled")) {
+    allItems = ["menuitem-import-file", ...allItems];
+  }
+  if (navigator.platform == "Win32" || navigator.platform == "MacIntel") {
+    allItems = ["menuitem-import-browser", ...allItems];
+  }
+
+  let menu = gMenuButton.shadowRoot.querySelector(".menu");
+
+  is(document.activeElement, gMenuButton, "menu-button should be focused to start the test");
+  is(true, menu.hidden, "menu should be hidden before pressing 'space'");
+
+  sendKey("RETURN");
+
+  await SimpleTest.promiseWaitForCondition(() => !menu.hidden, "waiting for menu to show");
+
+  ok(!menu.hidden, "menu should be visible after pressing 'enter'");
+
+  for (let item of allItems) {
+    await waitForElementFocus("." + item);
+    ok(
+      getFocusedMenuItem().classList.contains(item),
+      `.${item} should be selected after key is pressed`
+    );
+    sendKey("DOWN");
+  }
+
+
+  await waitForElementFocus("." + allItems[0]);
+  ok(
+    getFocusedMenuItem().classList.contains(allItems[0]),
+    "Focused item should not change if left arrow is pressed"
+  )
+  sendKey("LEFT");
+
+  await waitForElementFocus("." + allItems[0]);
+  ok(
+    getFocusedMenuItem().classList.contains(allItems[0]),
+    "Focused item should not change if right arrow is pressed"
+  )
+  sendKey("RIGHT");
+
+  await waitForElementFocus("." + allItems[0]);
+  ok(
+    getFocusedMenuItem().classList.contains(allItems[0]),
+    "Last item should cycle back to first item"
+  );
+
+  sendKey("UP");
+
+  let reversedItems = allItems.reverse();
+  for (let item of reversedItems) {
+    await waitForElementFocus("." + item);
+    ok(
+      getFocusedMenuItem().classList.contains(item),
+      `.${item} should be selected after up key is pressed`
+    );
+    sendKey("UP");
+  }
+});
+</script>
+
+</body>
+</html>
-- 
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