--- a/browser/base/content/test/general/browser_aboutSupport_newtab_security_state.js
+++ b/browser/base/content/test/general/browser_aboutSupport_newtab_security_state.js
@@ -1,18 +1,11 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: window.location is null");
-
-
 add_task(async function checkIdentityOfAboutSupport() {
   let tab = gBrowser.loadOneTab("about:support", {
     referrerURI: null,
     inBackground: false,
     allowThirdPartyFixup: false,
     relatedToCurrent: false,
     skipAnimation: true,
     allowMixedContent: false,

--- a/browser/base/content/test/general/browser_scope.js
+++ b/browser/base/content/test/general/browser_scope.js
@@ -1,10 +1,4 @@
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.docShell is null");
-
 function test() {
   ok(!!gBrowser, "gBrowser exists");
   is(gBrowser, getBrowser(), "both ways of getting tabbrowser work");
 }

--- a/browser/base/content/test/general/browser_tabs_owner.js
+++ b/browser/base/content/test/general/browser_tabs_owner.js
@@ -1,20 +1,8 @@
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: gBrowser._finalizeTabSwitch is not a function");
-
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: gBrowser._finalizeTabSwitch is not a function");
-
 function test() {
   BrowserTestUtils.addTab(gBrowser);
   BrowserTestUtils.addTab(gBrowser);
   BrowserTestUtils.addTab(gBrowser);
 
   var tabs = gBrowser.tabs;
   var owner;
 

--- a/browser/base/content/test/social/browser_social_activation.js
+++ b/browser/base/content/test/social/browser_social_activation.js
@@ -1,19 +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/. */
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: Assert is null");
-
-
 var SocialService = Cu.import("resource:///modules/SocialService.jsm", {}).SocialService;
 
 var tabsToRemove = [];
 
 function removeProvider(provider) {
   return new Promise(resolve => {
     // a full install sets the manifest into a pref, addProvider alone doesn't,
     // make sure we uninstall if the manifest was added.

--- a/browser/base/content/test/sync/browser_aboutAccounts.js
+++ b/browser/base/content/test/sync/browser_aboutAccounts.js
@@ -1,18 +1,12 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: window.location is null");
-
 XPCOMUtils.defineLazyModuleGetter(this, "Promise",
   "resource://gre/modules/Promise.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "fxAccounts",
   "resource://gre/modules/FxAccounts.jsm");
 XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
   "resource://gre/modules/FileUtils.jsm");
 
 const CHROME_BASE = "chrome://mochitests/content/browser/browser/base/content/test/sync/";

--- a/browser/extensions/activity-stream/test/functional/mochitest/.eslintrc.js
+++ b/browser/extensions/activity-stream/test/functional/mochitest/.eslintrc.js
@@ -26,17 +26,16 @@ module.exports = {
     "OpenBrowserWindow": false,
     "Preferences": false,
     "registerCleanupFunction": false,
     "requestLongerTimeout": false,
     "Services": false,
     "SimpleTest": false,
     "SpecialPowers": false,
     "TestUtils": false,
-    "thisTestLeaksUncaughtRejectionsAndShouldBeFixed": false,
     "todo": false,
     "todo_is": false,
     "todo_isnot": false,
     "waitForClipboard": false,
     "waitForExplicitFinish": false,
     "waitForFocus": false
   }
 };

--- a/devtools/client/debugger/new/test/mochitest/.eslintrc
+++ b/devtools/client/debugger/new/test/mochitest/.eslintrc
@@ -21,17 +21,16 @@
     "is": false,
     "isnot": false,
     "ok": false,
     "registerCleanupFunction": false,
     "requestLongerTimeout": false,
     "SimpleTest": false,
     "SpecialPowers": false,
     "TestUtils": false,
-    "thisTestLeaksUncaughtRejectionsAndShouldBeFixed": false,
     "todo": false,
     "todo_is": false,
     "todo_isnot": false,
     "waitForClipboard": false,
     "waitForExplicitFinish": false,
     "waitForFocus": false,
 
     // Globals introduced in debugger-specific head.js

--- a/devtools/client/debugger/test/mochitest/browser_dbg_break-on-dom-01.js
+++ b/devtools/client/debugger/test/mochitest/browser_dbg_break-on-dom-01.js
@@ -1,19 +1,13 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejections should be fixed.
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("[object Object]");
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed(
-  "TypeError: this.transport is null");
-
 /**
  * Tests that event listeners aren't fetched when the events tab isn't selected.
  */
 
 const TAB_URL = EXAMPLE_URL + "doc_event-listeners-02.html";
 
 function test() {
   let options = {

--- a/devtools/client/debugger/test/mochitest/browser_dbg_terminate-on-tab-close.js
+++ b/devtools/client/debugger/test/mochitest/browser_dbg_terminate-on-tab-close.js
@@ -1,17 +1,13 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejections should be fixed.
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("[object Object]");
-
 /**
  * Tests that debuggee scripts are terminated on tab closure.
  */
 
 // The following rejection should not be left uncaught. This test has been
 // whitelisted until the issue is fixed.
 if (!gMultiProcessBrowser) {
   Cu.import("resource://testing-common/PromiseTestUtils.jsm", this);

--- a/devtools/client/debugger/test/mochitest/browser_dbg_worker-window.js
+++ b/devtools/client/debugger/test/mochitest/browser_dbg_worker-window.js
@@ -1,17 +1,13 @@
 // Check to make sure that a worker can be attached to a toolbox
 // directly, and that the toolbox has expected properties.
 
 "use strict";
 
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejections should be fixed.
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("[object Object]");
-
 // The following "connectionClosed" rejection should not be left uncaught. This
 // test has been whitelisted until the issue is fixed.
 Cu.import("resource://testing-common/PromiseTestUtils.jsm", this);
 PromiseTestUtils.expectUncaughtRejection(/[object Object]/);
 
 var TAB_URL = EXAMPLE_URL + "doc_WorkerActor.attachThread-tab.html";
 var WORKER_URL = "code_WorkerActor.attachThread-worker.js";
 

--- a/devtools/client/framework/test/browser_devtools_api.js
+++ b/devtools/client/framework/test/browser_devtools_api.js
@@ -1,22 +1,13 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejections should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.docShell is null");
-
-// When running in a standalone directory, we get this error
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.doc is undefined");
-
 // Tests devtools API
 
 const toolId1 = "test-tool-1";
 const toolId2 = "test-tool-2";
 
 function test() {
   addTab("about:blank").then(runTests1);
 }

--- a/devtools/client/framework/test/browser_toolbox_tool_ready.js
+++ b/devtools/client/framework/test/browser_toolbox_tool_ready.js
@@ -2,23 +2,16 @@
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
 requestLongerTimeout(5);
 
-/**
- * Whitelisting this test.
- * As part of bug 1077403, the leaking uncaught rejection should be fixed.
- */
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Shader Editor is " +
-  "still waiting for a WebGL context to be created.");
-
 function performChecks(target) {
   return Task.spawn(function* () {
     let toolIds = gDevTools.getToolDefinitionArray()
                            .filter(def => def.isTargetSupported(target))
                            .map(def => def.id);
 
     let toolbox;
     for (let index = 0; index < toolIds.length; index++) {

--- a/devtools/client/framework/test/browser_toolbox_tool_remote_reopen.js
+++ b/devtools/client/framework/test/browser_toolbox_tool_remote_reopen.js
@@ -1,22 +1,15 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-/**
- * Whitelisting this test.
- * As part of bug 1077403, the leaking uncaught rejection should be fixed.
- */
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Shader Editor is " +
-  "still waiting for a WebGL context to be created.");
-
 const { DebuggerServer } = require("devtools/server/main");
 const { DebuggerClient } = require("devtools/shared/client/main");
 
 // Bug 1277805: Too slow for debug runs
 requestLongerTimeout(2);
 
 /**
  * Bug 979536: Ensure fronts are destroyed after toolbox close.

--- a/devtools/client/inspector/computed/test/browser_computed_style-editor-link.js
+++ b/devtools/client/inspector/computed/test/browser_computed_style-editor-link.js
@@ -1,18 +1,14 @@
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Unknown sheet source");
-
 // Tests the links from the computed view to the style editor.
 
 const STYLESHEET_URL = "data:text/css," + encodeURIComponent(
   ".highlight {color: blue}");
 
 const DOCUMENT_URL = "data:text/html;charset=utf-8," + encodeURIComponent(
   `<html>
    <head>

--- a/devtools/client/inspector/rules/test/browser_rules_style-editor-link.js
+++ b/devtools/client/inspector/rules/test/browser_rules_style-editor-link.js
@@ -1,18 +1,14 @@
 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-// FIXME: Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Unknown sheet source");
-
 // Test the links from the rule-view to the styleeditor
 
 const STYLESHEET_URL = "data:text/css," + encodeURIComponent(
   ["#first {",
    "color: blue",
    "}"].join("\n"));
 
 const EXTERNAL_STYLESHEET_FILE_NAME = "doc_style_editor_link.css";

--- a/devtools/client/inspector/test/browser_inspector_highlighter-comments.js
+++ b/devtools/client/inspector/test/browser_inspector_highlighter-comments.js
@@ -1,21 +1,15 @@
 /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set ts=2 et sw=2 tw=80: */
 /* 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";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("false");
-
 // Test that hovering over the markup-view's containers doesn't always show the
 // highlighter, depending on the type of node hovered over.
 
 const TEST_PAGE = URL_ROOT +
   "doc_inspector_highlighter-comments.html";
 
 add_task(function* () {
   let {inspector, testActor} = yield openInspectorForURL(TEST_PAGE);

--- a/devtools/client/projecteditor/test/browser_projecteditor_editing_01.js
+++ b/devtools/client/projecteditor/test/browser_projecteditor_editing_01.js
@@ -1,20 +1,14 @@
 /* vim: set ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("destroy");
-
 loadHelperScript("helper_edits.js");
 
 // Test ProjectEditor basic functionality
 add_task(function* () {
   let projecteditor = yield addProjectEditorTabForTempDirectory();
   let TEMP_PATH = projecteditor.project.allPaths()[0];
 
   is(getTempFile("").path, TEMP_PATH, "Temp path is set correctly.");

--- a/devtools/client/projecteditor/test/browser_projecteditor_editors_image.js
+++ b/devtools/client/projecteditor/test/browser_projecteditor_editors_image.js
@@ -1,20 +1,14 @@
 /* vim: set ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("destroy");
-
 loadHelperScript("helper_edits.js");
 
 // Test ProjectEditor image editor functionality
 add_task(function* () {
   let projecteditor = yield addProjectEditorTabForTempDirectory();
   let TEMP_PATH = projecteditor.project.allPaths()[0];
 
   is(getTempFile("").path, TEMP_PATH, "Temp path is set correctly.");

--- a/devtools/client/projecteditor/test/browser_projecteditor_immediate_destroy.js
+++ b/devtools/client/projecteditor/test/browser_projecteditor_immediate_destroy.js
@@ -1,21 +1,14 @@
 /* vim: set ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("destroy");
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.window is null");
-
 // Test that projecteditor can be destroyed in various states of loading
 // without causing any leaks or exceptions.
 
 add_task(function* () {
 
   info("Testing tab closure when projecteditor is in various states");
   let loaderUrl = "chrome://mochitests/content/browser/devtools/client/projecteditor/test/projecteditor-test.xul";
 

--- a/devtools/client/projecteditor/test/browser_projecteditor_saveall.js
+++ b/devtools/client/projecteditor/test/browser_projecteditor_saveall.js
@@ -1,20 +1,14 @@
 /* vim: set ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("destroy");
-
 loadHelperScript("helper_edits.js");
 
 // Test ProjectEditor basic functionality
 add_task(function* () {
   let projecteditor = yield addProjectEditorTabForTempDirectory();
   let TEMP_PATH = projecteditor.project.allPaths()[0];
 
   is(getTempFile("").path, TEMP_PATH, "Temp path is set correctly.");

--- a/devtools/client/projecteditor/test/browser_projecteditor_tree_selection_02.js
+++ b/devtools/client/projecteditor/test/browser_projecteditor_tree_selection_02.js
@@ -1,20 +1,14 @@
 /* vim: set ts=2 et sw=2 tw=80: */
 /* Any copyright is dedicated to the Public Domain.
  http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("destroy");
-
 // Test that files get reselected in the tree when their editor
 // is focused.  https://bugzilla.mozilla.org/show_bug.cgi?id=1011116.
 
 add_task(function* () {
   let projecteditor = yield addProjectEditorTabForTempDirectory();
   let TEMP_PATH = projecteditor.project.allPaths()[0];
 
   is(getTempFile("").path, TEMP_PATH, "Temp path is set correctly.");

--- a/devtools/client/responsivedesign/test/browser_responsive_cmd.js
+++ b/devtools/client/responsivedesign/test/browser_responsive_cmd.js
@@ -1,19 +1,13 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("destroy");
-
 function test() {
   let manager = ResponsiveUIManager;
   let done;
 
   function isOpen() {
     return gBrowser.getBrowserContainer(gBrowser.selectedBrowser)
                    .hasAttribute("responsivemode");
   }

--- a/devtools/client/shared/test/browser_telemetry_toolboxtabs_shadereditor.js
+++ b/devtools/client/shared/test/browser_telemetry_toolboxtabs_shadereditor.js
@@ -1,20 +1,13 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed(
-  "Error: Shader Editor is still waiting for a WebGL context to be created.");
-
 const TEST_URI = "data:text/html;charset=utf-8," +
   "<p>browser_telemetry_toolboxtabs_shadereditor.js</p>";
 
 // Because we need to gather stats for the period of time that a tool has been
 // opened we make use of setTimeout() to create tool active times.
 const TOOL_DELAY = 200;
 const TOOL_PREF = "devtools.shadereditor.enabled";
 

--- a/devtools/client/shared/test/browser_toolbar_tooltip.js
+++ b/devtools/client/shared/test/browser_toolbar_tooltip.js
@@ -1,23 +1,15 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 "use strict";
 
 // Tests that the developer toolbar works properly
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed(
-  "Protocol error (unknownError): Error: Got an invalid root window in DocumentWalker"
-);
-
 const TEST_URI = "data:text/html;charset=utf-8,<p>Tooltip Tests</p>";
 const PREF_DEVTOOLS_THEME = "devtools.theme";
 
 registerCleanupFunction(() => {
   // Set preferences back to their original values
   Services.prefs.clearUserPref(PREF_DEVTOOLS_THEME);
 });
 

--- a/devtools/client/webaudioeditor/test/browser_wa_first-run.js
+++ b/devtools/client/webaudioeditor/test/browser_wa_first-run.js
@@ -1,17 +1,11 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Connection closed");
-
 /**
  * Tests that the reloading/onContentLoaded hooks work.
  */
 
 add_task(function* () {
   let { target, panel } = yield initWebAudioEditor(SIMPLE_CONTEXT_URL);
   let { gFront, $ } = panel.panelWin;
 

--- a/devtools/client/webaudioeditor/test/browser_wa_reset-01.js
+++ b/devtools/client/webaudioeditor/test/browser_wa_reset-01.js
@@ -1,17 +1,11 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Connection closed");
-
 /**
  * Tests that reloading a tab will properly listen for the `start-context`
  * event and reshow the tools after reloading.
  */
 
 add_task(function* () {
   let { target, panel } = yield initWebAudioEditor(SIMPLE_CONTEXT_URL);
   let { gFront, $ } = panel.panelWin;

--- a/devtools/client/webaudioeditor/test/browser_wa_reset-04.js
+++ b/devtools/client/webaudioeditor/test/browser_wa_reset-04.js
@@ -1,17 +1,11 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Connection closed");
-
 /**
  * Tests that switching to an iframe works fine.
  */
 
 add_task(function* () {
   Services.prefs.setBoolPref("devtools.command-button-frames.enabled", true);
 
   let { target, panel, toolbox } = yield initWebAudioEditor(IFRAME_CONTEXT_URL);

--- a/devtools/client/webconsole/test/browser_webconsole_output_01.js
+++ b/devtools/client/webconsole/test/browser_webconsole_output_01.js
@@ -4,18 +4,16 @@
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 // Whitelisting this test.
 // As part of bug 1077403, the leaking uncaught rejection should be fixed.
 //
 
 "use strict";
 
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("null");
-
 // Test the webconsole output for various types of objects.
 
 const TEST_URI = "data:text/html;charset=utf8,test for console output - 01";
 
 var {DebuggerServer} = require("devtools/server/main");
 
 var longString = (new Array(DebuggerServer.LONG_STRING_LENGTH + 4)).join("a");
 var initialString = longString.substring(0, DebuggerServer.LONG_STRING_INITIAL_LENGTH);

--- a/devtools/client/webconsole/test/browser_webconsole_output_04.js
+++ b/devtools/client/webconsole/test/browser_webconsole_output_04.js
@@ -4,18 +4,16 @@
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 // Whitelisting this test.
 // As part of bug 1077403, the leaking uncaught rejection should be fixed.
 //
 
 "use strict";
 
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("null");
-
 // Test the webconsole output for various types of objects.
 
 const TEST_URI = "http://example.com/browser/devtools/client/webconsole/" +
                  "test/test-console-output-04.html";
 
 var inputTests = [
   // 0
   {

--- a/devtools/client/webconsole/test/browser_webconsole_output_dom_elements_01.js
+++ b/devtools/client/webconsole/test/browser_webconsole_output_dom_elements_01.js
@@ -3,20 +3,16 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 // Whitelisting this test.
 // As part of bug 1077403, the leaking uncaught rejections should be fixed.
 
 "use strict";
 
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed(null);
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed(
-  "TypeError: this.toolbox is null");
-
 // Test the webconsole output for various types of DOM Nodes.
 
 const TEST_URI = "http://example.com/browser/devtools/client/webconsole/" +
                  "test/test-console-output-dom-elements.html";
 
 var inputTests = [
   {
     input: "testBodyNode()",

--- a/devtools/client/webconsole/test/browser_webconsole_output_events.js
+++ b/devtools/client/webconsole/test/browser_webconsole_output_events.js
@@ -3,18 +3,16 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 // Whitelisting this test.
 // As part of bug 1077403, the leaking uncaught rejection should be fixed.
 
 "use strict";
 
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("null");
-
 // Test the webconsole output for DOM events.
 
 const TEST_URI = "http://example.com/browser/devtools/client/webconsole/" +
                  "test/test-console-output-events.html";
 
 add_task(function* () {
   yield loadTab(TEST_URI);
 

--- a/testing/mochitest/browser-test.js
+++ b/testing/mochitest/browser-test.js
@@ -1029,19 +1029,16 @@ function testScope(aTester, aTest, expec
   this.expectUncaughtException = function test_expectUncaughtException(aExpecting) {
     self.SimpleTest.expectUncaughtException(aExpecting);
   };
 
   this.ignoreAllUncaughtExceptions = function test_ignoreAllUncaughtExceptions(aIgnoring) {
     self.SimpleTest.ignoreAllUncaughtExceptions(aIgnoring);
   };
 
-  this.thisTestLeaksUncaughtRejectionsAndShouldBeFixed = function(...rejections) {
-  };
-
   this.expectAssertions = function test_expectAssertions(aMin, aMax) {
     let min = aMin;
     let max = aMax;
     if (typeof(max) == "undefined") {
       max = min;
     }
     if (typeof(min) != "number" || typeof(max) != "number" ||
         min < 0 || max < min) {

--- a/toolkit/components/startup/tests/browser/browser_bug537449.js
+++ b/toolkit/components/startup/tests/browser/browser_bug537449.js
@@ -1,20 +1,14 @@
 /* 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";
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.docShell is null");
-
 SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
 
 const TEST_URL = "http://example.com/browser/toolkit/components/startup/tests/browser/beforeunload.html";
 
 function test() {
   waitForExplicitFinish();
 
   gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser, TEST_URL);

--- a/toolkit/mozapps/extensions/test/browser/browser_bug570760.js
+++ b/toolkit/mozapps/extensions/test/browser/browser_bug570760.js
@@ -1,15 +1,12 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("");
-
 // Bug 570760 - Make ctrl-f and / focus the search box in the add-ons manager
 
 var gManagerWindow;
 var focusCount = 0;
 
 function test() {
   waitForExplicitFinish();
 

--- a/toolkit/mozapps/extensions/test/xpinstall/browser_auth3.js
+++ b/toolkit/mozapps/extensions/test/xpinstall/browser_auth3.js
@@ -1,20 +1,13 @@
 // ----------------------------------------------------------------------------
 // Test whether an install fails when authentication is required and it is
 // canceled
 // This verifies bug 312473
 
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.docShell is null");
-
-
 function test() {
   Harness.authenticationCallback = get_auth_info;
   Harness.downloadFailedCallback = download_failed;
   Harness.installEndedCallback = install_ended;
   Harness.installsCompletedCallback = finish_test;
   Harness.setup();
 
   var pm = Services.perms;

--- a/toolkit/mozapps/extensions/test/xpinstall/browser_auth4.js
+++ b/toolkit/mozapps/extensions/test/xpinstall/browser_auth4.js
@@ -1,16 +1,8 @@
-//
-// Whitelisting this test.
-// As part of bug 1077403, the leaking uncaught rejection should be fixed.
-//
-thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: this.docShell is null");
-
-
-// ----------------------------------------------------------------------------
 // Test whether a request for auth for an XPI switches to the appropriate tab
 var gNewTab;
 
 function test() {
   Harness.authenticationCallback = get_auth_info;
   Harness.downloadFailedCallback = download_failed;
   Harness.installEndedCallback = install_ended;
   Harness.installsCompletedCallback = finish_test;

--- a/tools/lint/eslint/eslint-plugin-mozilla/lib/configs/browser-test.js
+++ b/tools/lint/eslint/eslint-plugin-mozilla/lib/configs/browser-test.js
@@ -40,17 +40,16 @@ module.exports = {
     "ignoreAllUncaughtExceptions": false,
     "info": false,
     "is": false,
     "isnot": false,
     "ok": false,
     "privateNoteIntentionalCrash": false,
     "registerCleanupFunction": false,
     "requestLongerTimeout": false,
-    "thisTestLeaksUncaughtRejectionsAndShouldBeFixed": false,
     "todo": false,
     "todo_is": false,
     "todo_isnot": false,
     "waitForClipboard": false,
     "waitForExplicitFinish": false,
     "waitForFocus": false
   },