--- a/accessible/tests/browser/.eslintrc.js
+++ b/accessible/tests/browser/.eslintrc.js
@@ -1,60 +1,14 @@
 "use strict";
 
 module.exports = {
   "extends": [
     "plugin:mozilla/browser-test"
   ],
-  // All globals made available in the test environment.
-  "globals": {
-    // Content scripts have global 'content' object
-    "content": true,
-
-    "add_task": true,
-
-    // Defined in accessible/tests/mochitest/ common.js, name.js, states.js
-    "prettyName": true,
-    "statesToString": true,
-    "eventTypeToString": true,
-    "testAttrs": true,
-    "testAbsentAttrs": true,
-    "testName": true,
-    "testDescr": true,
-    "testStates": true,
-    "testRelation": true,
-    "testValue": true,
-    "testAccessibleTree": true,
-    "isAccessible": true,
-    "getAccessibleDOMNodeID": true,
-
-    // Defined for all top level accessibility browser tests.
-    "setE10sPrefs": true,
-    "unsetE10sPrefs": true,
-    "initPromise": true,
-    "shutdownPromise": true,
-    "forceGC": true,
-
-    // Defined for all e10s accessibility browser tests.
-    "addAccessibleTask": true,
-    "BrowserTestUtils": true,
-    "ContentTask": true,
-    "gBrowser": true,
-    "isDefunct": true,
-    "loadScripts": true,
-    "loadFrameScripts": true,
-    "Logger": true,
-    "MOCHITESTS_DIR": true,
-    "waitForEvent": true,
-    "waitForMultipleEvents": true,
-    "invokeSetAttribute": true,
-    "invokeSetStyle": true,
-    "invokeFocus": true,
-    "findAccessibleChildByID": true
-  },
   "rules": {
     "mozilla/no-aArgs": "error",
     "mozilla/no-cpows-in-tests": "error",
     "mozilla/reject-importGlobalProperties": "error",
     "mozilla/var-only-at-top-level": "error",
 
     "block-scoped-var": "error",
     "camelcase": "error",

--- a/accessible/tests/browser/e10s/browser_caching_attributes.js
+++ b/accessible/tests/browser/e10s/browser_caching_attributes.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_FOCUS */
-
+/* import-globals-from ../../mochitest/attributes.js */
 loadScripts({ name: 'attributes.js', dir: MOCHITESTS_DIR });
 
 /**
  * Default textbox accessible attributes.
  */
 const defaultAttributes = {
   'margin-top': '0px',
   'margin-right': '0px',

--- a/accessible/tests/browser/e10s/browser_caching_description.js
+++ b/accessible/tests/browser/e10s/browser_caching_description.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_DESCRIPTION_CHANGE, EVENT_NAME_CHANGE, EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/name.js */
 loadScripts({ name: 'name.js', dir: MOCHITESTS_DIR });
 
 /**
  * Test data has the format of:
  * {
  *   desc      {String}   description for better logging
  *   expected  {String}   expected description value for a given accessible
  *   attrs     {?Array}   an optional list of attributes to update

--- a/accessible/tests/browser/e10s/browser_caching_name.js
+++ b/accessible/tests/browser/e10s/browser_caching_name.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER, EVENT_TEXT_INSERTED */
-
+/* import-globals-from ../../mochitest/name.js */
 loadScripts({ name: 'name.js', dir: MOCHITESTS_DIR });
 
 /**
  * Rules for name tests that are inspired by
  *   accessible/tests/mochitest/name/markuprules.xul
  *
  * Each element in the list of rules represents a name calculation rule for a
  * particular test case.

--- a/accessible/tests/browser/e10s/browser_caching_relations.js
+++ b/accessible/tests/browser/e10s/browser_caching_relations.js
@@ -1,18 +1,15 @@
 /* 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';
 
-/* global RELATION_LABELLED_BY, RELATION_LABEL_FOR, RELATION_DESCRIBED_BY,
-          RELATION_DESCRIPTION_FOR, RELATION_CONTROLLER_FOR,
-          RELATION_CONTROLLED_BY, RELATION_FLOWS_TO, RELATION_FLOWS_FROM */
-
+/* import-globals-from ../../mochitest/relations.js */
 loadScripts({ name: 'relations.js', dir: MOCHITESTS_DIR });
 
 /**
  * A test specification that has the following format:
  * [
  *   attr                 relevant aria attribute
  *   hostRelation         corresponding host relation type
  *   dependantRelation    corresponding dependant relation type

--- a/accessible/tests/browser/e10s/browser_caching_states.js
+++ b/accessible/tests/browser/e10s/browser_caching_states.js
@@ -1,17 +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';
 
-/* global EVENT_STATE_CHANGE, STATE_CHECKED, STATE_BUSY, STATE_REQUIRED,
-          STATE_INVALID, EXT_STATE_ENABLED */
-
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR },
             { name: 'states.js', dir: MOCHITESTS_DIR });
 
 /**
  * Test data has the format of:
  * {
  *   desc      {String}   description for better logging
  *   expected  {Array}    expected states for a given accessible that have the

--- a/accessible/tests/browser/e10s/browser_caching_value.js
+++ b/accessible/tests/browser/e10s/browser_caching_value.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global nsIAccessibleValue, EVENT_VALUE_CHANGE, EVENT_TEXT_VALUE_CHANGE */
-
+/* import-globals-from ../../mochitest/value.js */
 loadScripts({ name: 'value.js', dir: MOCHITESTS_DIR });
 
 /**
  * Test data has the format of:
  * {
  *   desc      {String}       description for better logging
  *   id        {String}       given accessible DOMNode ID
  *   expected  {String}       expected value for a given accessible

--- a/accessible/tests/browser/e10s/browser_events_caretmove.js
+++ b/accessible/tests/browser/e10s/browser_events_caretmove.js
@@ -1,14 +1,12 @@
 /* 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/. */
 
-/* global EVENT_TEXT_CARET_MOVED, nsIAccessibleCaretMoveEvent */
-
 'use strict';
 
 /**
  * Test caret move event and its interface:
  *   - caretOffset
  */
 addAccessibleTask('<input id="textbox" value="hello"/>', function*(browser) {
   let onCaretMoved = waitForEvent(EVENT_TEXT_CARET_MOVED, 'textbox');

--- a/accessible/tests/browser/e10s/browser_events_hide.js
+++ b/accessible/tests/browser/e10s/browser_events_hide.js
@@ -1,14 +1,12 @@
 /* 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/. */
 
-/* global EVENT_HIDE */
-
 'use strict';
 
 /**
  * Test hide event and its interface:
  *   - targetParent
  *   - targetNextSibling
  *   - targetPrevSibling
  */

--- a/accessible/tests/browser/e10s/browser_events_show.js
+++ b/accessible/tests/browser/e10s/browser_events_show.js
@@ -1,14 +1,12 @@
 /* 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/. */
 
-/* global EVENT_SHOW */
-
 'use strict';
 
 /**
  * Test show event
  */
 addAccessibleTask('<div id="div" style="visibility: hidden;"></div>',
   function*(browser) {
     let onShow = waitForEvent(EVENT_SHOW, 'div');

--- a/accessible/tests/browser/e10s/browser_events_statechange.js
+++ b/accessible/tests/browser/e10s/browser_events_statechange.js
@@ -1,17 +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/. */
 
-/* global STATE_CHECKED, EXT_STATE_EDITABLE, nsIAccessibleStateChangeEvent,
-          EVENT_STATE_CHANGE */
-
 'use strict';
 
+/* import-globals-from ../../mochitest/role.js */
+/* import-globals-from ../../mochitest/states.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR },
             { name: 'states.js', dir: MOCHITESTS_DIR });
 
 function checkStateChangeEvent(event, state, isExtraState, isEnabled) {
   let scEvent = event.QueryInterface(nsIAccessibleStateChangeEvent);
   is(scEvent.state, state, 'Correct state of the statechange event.');
   is(scEvent.isExtraState, isExtraState,
     'Correct extra state bit of the statechange event.');

--- a/accessible/tests/browser/e10s/browser_events_textchange.js
+++ b/accessible/tests/browser/e10s/browser_events_textchange.js
@@ -1,15 +1,12 @@
 /* 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/. */
 
-/* global EVENT_TEXT_INSERTED, EVENT_TEXT_REMOVED,
-          nsIAccessibleTextChangeEvent */
-
 'use strict';
 
 function checkTextChangeEvent(event, id, text, start, end, isInserted, isFromUserInput) {
   let tcEvent = event.QueryInterface(nsIAccessibleTextChangeEvent);
   is(tcEvent.start, start, `Correct start offset for ${prettyName(id)}`);
   is(tcEvent.length, end - start, `Correct length for ${prettyName(id)}`);
   is(tcEvent.isInserted, isInserted,
     `Correct isInserted flag for ${prettyName(id)}`);

--- a/accessible/tests/browser/e10s/browser_treeupdate_ariadialog.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_ariadialog.js
@@ -1,17 +1,15 @@
 /* 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';
 
-/* global EVENT_SHOW, ROLE_DIALOG, ROLE_PUSHBUTTON, ROLE_TEXT_LEAF, ROLE_ENTRY,
-          ROLE_DOCUMENT */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 // Test ARIA Dialog
 addAccessibleTask('doc_treeupdate_ariadialog.html', function*(browser, accDoc) {
   testAccessibleTree(accDoc, {
     role: ROLE_DOCUMENT,
     children: [ ]
   });

--- a/accessible/tests/browser/e10s/browser_treeupdate_ariaowns.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_ariaowns.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 function* testContainer1(browser, accDoc) {
   const id = 't1_container';
   const docID = getAccessibleDOMNodeID(accDoc);
   const acc = findAccessibleChildByID(accDoc, id);
 
   /* ================= Initial tree test ==================================== */

--- a/accessible/tests/browser/e10s/browser_treeupdate_canvas.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_canvas.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_SHOW */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask(`
   <canvas id="canvas">
     <div id="dialog" role="dialog" style="display: none;"></div>
   </canvas>`, function*(browser, accDoc) {
   let canvas = findAccessibleChildByID(accDoc, 'canvas');
   let dialog = findAccessibleChildByID(accDoc, 'dialog');

--- a/accessible/tests/browser/e10s/browser_treeupdate_cssoverflow.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_cssoverflow.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask(`
   <div id="container"><div id="scrollarea" style="overflow:auto;"><input>
   </div></div>
   <div id="container2"><div id="scrollarea2" style="overflow:hidden;">
   </div></div>`, function*(browser, accDoc) {
   const id1 = 'container';

--- a/accessible/tests/browser/e10s/browser_treeupdate_doc.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_doc.js
@@ -1,17 +1,15 @@
 /* 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';
 
-/* global ROLE_PUSHBUTTON, ROLE_TEXT_LEAF, EVENT_REORDER, ROLE_DOCUMENT,
-          nsIAccessibleDocument */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 const iframeSrc = `data:text/html,
   <html>
     <head>
       <meta charset='utf-8'/>
       <title>Inner Iframe</title>
     </head>

--- a/accessible/tests/browser/e10s/browser_treeupdate_gencontent.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_gencontent.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask(`
   <style>
     .gentext:before {
       content: "START"
     }
     .gentext:after {

--- a/accessible/tests/browser/e10s/browser_treeupdate_hidden.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_hidden.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 function* setHidden(browser, value) {
   let onReorder = waitForEvent(EVENT_REORDER, 'container');
   yield invokeSetAttribute(browser, 'child', 'hidden', value);
   yield onReorder;
 }
 

--- a/accessible/tests/browser/e10s/browser_treeupdate_imagemap.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_imagemap.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER, ROLE_LINK */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 function* testImageMap(browser, accDoc) {
   const id = 'imgmap';
   const acc = findAccessibleChildByID(accDoc, id);
 
   /* ================= Initial tree test ==================================== */
   let tree = {

--- a/accessible/tests/browser/e10s/browser_treeupdate_list.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_list.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global ROLE_TEXT_LEAF, EVENT_REORDER, ROLE_STATICTEXT, ROLE_LISTITEM */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 function* setDisplayAndWaitForReorder(browser, value) {
   let onReorder = waitForEvent(EVENT_REORDER, 'ul');
   yield invokeSetStyle(browser, 'li', 'display', value);
   return yield onReorder;
 }
 

--- a/accessible/tests/browser/e10s/browser_treeupdate_list_editabledoc.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_list_editabledoc.js
@@ -1,17 +1,15 @@
 /* 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';
 
-/* global ROLE_TEXT_LEAF, EVENT_REORDER, ROLE_LISTITEM, ROLE_LIST,
-          ROLE_STATICTEXT */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask('<ol id="list"></ol>', function*(browser, accDoc) {
   let list = findAccessibleChildByID(accDoc, 'list');
 
   testAccessibleTree(list, {
     role: ROLE_LIST,
     children: [ ]

--- a/accessible/tests/browser/e10s/browser_treeupdate_listener.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_listener.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask('<span id="parent"><span id="child"></span></span>',
   function*(browser, accDoc) {
     is(findAccessibleChildByID(accDoc, 'parent'), null,
       'Check that parent is not accessible.');
     is(findAccessibleChildByID(accDoc, 'child'), null,
       'Check that child is not accessible.');

--- a/accessible/tests/browser/e10s/browser_treeupdate_optgroup.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_optgroup.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask('<select id="select"></select>', function*(browser, accDoc) {
   let select = findAccessibleChildByID(accDoc, 'select');
 
   let onEvent = waitForEvent(EVENT_REORDER, 'select');
   // Create a combobox with grouping and 2 standalone options
   yield ContentTask.spawn(browser, {}, () => {

--- a/accessible/tests/browser/e10s/browser_treeupdate_removal.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_removal.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask('doc_treeupdate_removal.xhtml', function*(browser, accDoc) {
   ok(isAccessible(findAccessibleChildByID(accDoc, 'the_table')),
     'table should be accessible');
 
   // Move the_table element into hidden subtree.
   let onReorder = waitForEvent(EVENT_REORDER, 'body');

--- a/accessible/tests/browser/e10s/browser_treeupdate_table.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_table.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask(`
   <table id="table">
     <tr>
       <td>cell1</td>
       <td>cell2</td>
     </tr>

--- a/accessible/tests/browser/e10s/browser_treeupdate_textleaf.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_textleaf.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER, ROLE_TEXT_CONTAINER ROLE_PARAGRAPH, ROLE_TEXT_LEAF */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 function* removeTextData(browser, accessible, id, role) {
   let tree = {
     role: role,
     children: [ { role: ROLE_TEXT_LEAF, name: "text" } ]
   };
   testAccessibleTree(accessible, tree);

--- a/accessible/tests/browser/e10s/browser_treeupdate_visibility.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_visibility.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 function* testTreeOnHide(browser, accDoc, containerID, id, before, after) {
   let acc = findAccessibleChildByID(accDoc, containerID);
   testAccessibleTree(acc, before);
 
   let onReorder = waitForEvent(EVENT_REORDER, containerID);
   yield invokeSetStyle(browser, id, 'visibility', 'hidden');

--- a/accessible/tests/browser/e10s/browser_treeupdate_whitespace.js
+++ b/accessible/tests/browser/e10s/browser_treeupdate_whitespace.js
@@ -1,16 +1,15 @@
 /* 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';
 
-/* global EVENT_REORDER */
-
+/* import-globals-from ../../mochitest/role.js */
 loadScripts({ name: 'role.js', dir: MOCHITESTS_DIR });
 
 addAccessibleTask('doc_treeupdate_whitespace.html', function*(browser, accDoc) {
   let container1 = findAccessibleChildByID(accDoc, 'container1');
   let container2Parent = findAccessibleChildByID(accDoc, 'container2-parent');
 
   let tree = {
     SECTION: [

--- a/accessible/tests/browser/e10s/events.js
+++ b/accessible/tests/browser/e10s/events.js
@@ -1,16 +1,17 @@
 /* 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';
 
-/* global nsIAccessibleEvent, nsIAccessibleDocument,
-          nsIAccessibleStateChangeEvent, nsIAccessibleTextChangeEvent */
+// This is loaded by head.js, so has the same globals, hence we import the
+// globals from there.
+/* import-globals-from head.js */
 
 /* exported EVENT_REORDER, EVENT_SHOW, EVENT_TEXT_INSERTED, EVENT_TEXT_REMOVED,
             EVENT_DOCUMENT_LOAD_COMPLETE, EVENT_HIDE, EVENT_TEXT_CARET_MOVED,
             EVENT_DESCRIPTION_CHANGE, EVENT_NAME_CHANGE, EVENT_STATE_CHANGE,
             EVENT_VALUE_CHANGE, EVENT_TEXT_VALUE_CHANGE, EVENT_FOCUS,
             waitForEvent, waitForMultipleEvents */
 
 const EVENT_DOCUMENT_LOAD_COMPLETE = nsIAccessibleEvent.EVENT_DOCUMENT_LOAD_COMPLETE;

--- a/accessible/tests/browser/e10s/head.js
+++ b/accessible/tests/browser/e10s/head.js
@@ -1,19 +1,18 @@
 /* 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';
 
-/* global EVENT_DOCUMENT_LOAD_COMPLETE, CURRENT_CONTENT_DIR, loadFrameScripts */
-
-/* exported addAccessibleTask */
+/* exported addAccessibleTask, findAccessibleChildByID, isDefunct */
 
 // Load the shared-head file first.
+/* import-globals-from ../shared-head.js */
 Services.scriptloader.loadSubScript(
   'chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js',
   this);
 
 /**
  * A wrapper around browser test add_task that triggers an accessible test task
  * as a new browser test task with given document, data URL or markup snippet.
  * @param  {String}             doc    URL (relative to current directory) or
@@ -74,11 +73,53 @@ function addAccessibleTask(doc, task) {
       Logger.log(`Actually remote browser: ${browser.isRemoteBrowser}`);
 
       let event = yield onDocLoad;
       yield task(browser, event.accessible);
     });
   });
 }
 
+/**
+ * Check if an accessible object has a defunct test.
+ * @param  {nsIAccessible}  accessible object to test defunct state for
+ * @return {Boolean}        flag indicating defunct state
+ */
+function isDefunct(accessible) {
+  let defunct = false;
+  try {
+    let extState = {};
+    accessible.getState({}, extState);
+    defunct = extState.value & Ci.nsIAccessibleStates.EXT_STATE_DEFUNCT;
+  } catch (x) {
+    defunct = true;
+  } finally {
+    if (defunct) {
+      Logger.log(`Defunct accessible: ${prettyName(accessible)}`);
+    }
+  }
+  return defunct;
+}
+
+/**
+ * Traverses the accessible tree starting from a given accessible as a root and
+ * looks for an accessible that matches based on its DOMNode id.
+ * @param  {nsIAccessible}  accessible root accessible
+ * @param  {String}         id         id to look up accessible for
+ * @return {nsIAccessible?}            found accessible if any
+ */
+function findAccessibleChildByID(accessible, id) {
+  if (getAccessibleDOMNodeID(accessible) === id) {
+    return accessible;
+  }
+  for (let i = 0; i < accessible.children.length; ++i) {
+    let found = findAccessibleChildByID(accessible.getChildAt(i), id);
+    if (found) {
+      return found;
+    }
+  }
+}
+
 // Loading and common.js from accessible/tests/mochitest/ for all tests, as
 // well as events.js.
+/* import-globals-from ../../mochitest/common.js */
+/* import-globals-from events.js */
 loadScripts({ name: 'common.js', dir: MOCHITESTS_DIR }, 'e10s/events.js');

--- a/accessible/tests/browser/head.js
+++ b/accessible/tests/browser/head.js
@@ -28,16 +28,17 @@ function setE10sPrefs() {
  */
 function unsetE10sPrefs() {
   return new Promise(resolve => {
     SpecialPowers.popPrefEnv(resolve);
   });
 }
 
 // Load the shared-head file first.
+/* import-globals-from shared-head.js */
 Services.scriptloader.loadSubScript(
   'chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js',
   this);
 
 /**
  * Returns a promise that resolves when 'a11y-init-or-shutdown' event is fired.
  * @return {Promise} event promise evaluating to event's data
  */

--- a/accessible/tests/browser/shared-head.js
+++ b/accessible/tests/browser/shared-head.js
@@ -1,16 +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';
 
-/* exported Logger, MOCHITESTS_DIR, isDefunct, invokeSetAttribute, invokeFocus,
-            invokeSetStyle, findAccessibleChildByID, getAccessibleDOMNodeID,
+/* exported Logger, MOCHITESTS_DIR, invokeSetAttribute, invokeFocus,
+            invokeSetStyle, getAccessibleDOMNodeID,
             CURRENT_CONTENT_DIR, loadScripts, loadFrameScripts, Cc, Cu */
 
 const { interfaces: Ci, utils: Cu, classes: Cc } = Components;
 
 /**
  * Current browser test directory path used to load subscripts.
  */
 const CURRENT_DIR =
@@ -73,37 +73,16 @@ let Logger = {
   logToAppConsole(msg) {
     if (this.dumpToAppConsole) {
       Services.console.logStringMessage(`${msg}`);
     }
   }
 };
 
 /**
- * Check if an accessible object has a defunct test.
- * @param  {nsIAccessible}  accessible object to test defunct state for
- * @return {Boolean}        flag indicating defunct state
- */
-function isDefunct(accessible) {
-  let defunct = false;
-  try {
-    let extState = {};
-    accessible.getState({}, extState);
-    defunct = extState.value & Ci.nsIAccessibleStates.EXT_STATE_DEFUNCT;
-  } catch (x) {
-    defunct = true;
-  } finally {
-    if (defunct) {
-      Logger.log(`Defunct accessible: ${prettyName(accessible)}`);
-    }
-  }
-  return defunct;
-}
-
-/**
  * Asynchronously set or remove content element's attribute (in content process
  * if e10s is enabled).
  * @param  {Object}  browser  current "tabbrowser" element
  * @param  {String}  id       content element id
  * @param  {String}  attr     attribute name
  * @param  {String?} value    optional attribute value, if not present, remove
  *                            attribute
  * @return {Promise}          promise indicating that attribute is set/removed
@@ -167,35 +146,16 @@ function invokeFocus(browser, id) {
         elm instanceof Ci.nsIDOMXULTextBoxElement) {
       elm.selectionStart = elm.selectionEnd = elm.value.length;
     }
     elm.focus();
   });
 }
 
 /**
- * Traverses the accessible tree starting from a given accessible as a root and
- * looks for an accessible that matches based on its DOMNode id.
- * @param  {nsIAccessible}  accessible root accessible
- * @param  {String}         id         id to look up accessible for
- * @return {nsIAccessible?}            found accessible if any
- */
-function findAccessibleChildByID(accessible, id) {
-  if (getAccessibleDOMNodeID(accessible) === id) {
-    return accessible;
-  }
-  for (let i = 0; i < accessible.children.length; ++i) {
-    let found = findAccessibleChildByID(accessible.getChildAt(i), id);
-    if (found) {
-      return found;
-    }
-  }
-}
-
-/**
  * Load a list of scripts into the test
  * @param {Array} scripts  a list of scripts to load
  */
 function loadScripts(...scripts) {
   for (let script of scripts) {
     let path = typeof script === 'string' ? `${CURRENT_DIR}${script}` :
       `${script.dir}${script.name}`;
     Services.scriptloader.loadSubScript(path, this);

--- a/accessible/tests/mochitest/jsat/dom_helper.js
+++ b/accessible/tests/mochitest/jsat/dom_helper.js
@@ -1,12 +1,10 @@
 'use strict';
 
-/* global getMainChromeWindow, AccessFuTest, GestureSettings, GestureTracker,
-   SimpleTest, getBoundsForDOMElm, Point, Utils */
 /* exported loadJSON, eventMap */
 
 var Ci = Components.interfaces;
 var Cu = Components.utils;
 
 Cu.import('resource://gre/modules/Geometry.jsm');
 
 var win = getMainChromeWindow(window);

--- a/accessible/tests/mochitest/treeupdate/test_ariaowns.html
+++ b/accessible/tests/mochitest/treeupdate/test_ariaowns.html
@@ -582,25 +582,26 @@
       this.eventSeq = [
         new invokerChecker(EVENT_SHOW, () => {
           let doc = getNode('t9_container').contentDocument;
           return doc && doc.getElementById('container');
         })
       ];
 
       this.invoke = () => {
-        getNode('t9_container').src =
-          `data:text/html,
-            <html><body></body>
-            <script>
-              let el = document.createElement('div');
-              el.id = 'container';
-              el.innerHTML = "<input id='input'>";
-              document.documentElement.appendChild(el);
-            </` + `script></html>`;
+        // The \ before the final /script avoids the script from being terminated
+        // by the html parser.
+        getNode('t9_container').src = `data:text/html,
+          <html><body></body>
+          <script>
+            let el = document.createElement('div');
+            el.id = 'container';
+            el.innerHTML = "<input id='input'>";
+            document.documentElement.appendChild(el);
+          <\/script></html>`;
       }
 
       this.finalCheck = () => {
         var tree =
           { INTERNAL_FRAME: [
             { DOCUMENT: [
               { SECTION: [
                 { ENTRY: [] }