--- a/browser/base/content/aboutaccounts/aboutaccounts.js
+++ b/browser/base/content/aboutaccounts/aboutaccounts.js
@@ -265,17 +265,17 @@ var wrapper = {
 
     fxAccounts.signOut().then(
       () => this.injectData("message", { status: "sign_out" }),
       (err) => this.injectData("message", { status: "error", error: err })
     );
   },
 
   handleRemoteCommand(evt) {
-    log('command: ' + evt.detail.command);
+    log("command: " + evt.detail.command);
     let data = evt.detail.data;
 
     switch (evt.detail.command) {
       case "login":
         this.onLogin(data);
         break;
       case "can_link_account":
         this.onCanLinkAccount(data);
@@ -415,29 +415,29 @@ function setErrorPage(errorType) {
 // Causes the "top-level" element with |id| to be shown - all other top-level
 // elements are hidden.  Optionally, ensures that only 1 "second-level" element
 // inside the top-level one is shown.
 function show(id, childId) {
   // top-level items are either <div> or <iframe>
   let allTop = document.querySelectorAll("body > div, iframe");
   for (let elt of allTop) {
     if (elt.getAttribute("id") == id) {
-      elt.style.display = 'block';
+      elt.style.display = "block";
     } else {
-      elt.style.display = 'none';
+      elt.style.display = "none";
     }
   }
   if (childId) {
     // child items are all <div>
     let allSecond = document.querySelectorAll("#" + id + " > div");
     for (let elt of allSecond) {
       if (elt.getAttribute("id") == childId) {
-        elt.style.display = 'block';
+        elt.style.display = "block";
       } else {
-        elt.style.display = 'none';
+        elt.style.display = "none";
       }
     }
   }
 }
 
 // Migrate sync data from the default profile to the dev-edition profile.
 // Returns a promise of a true value if migration succeeded, or false if it
 // failed.
@@ -495,27 +495,27 @@ function getDefaultProfilePath() {
                         .getService(Ci.nsIToolkitProfileService)
                         .defaultProfile;
   return defaultProfile.rootDir.path;
 }
 
 document.addEventListener("DOMContentLoaded", function onload() {
   document.removeEventListener("DOMContentLoaded", onload, true);
   init();
-  var buttonGetStarted = document.getElementById('buttonGetStarted');
-  buttonGetStarted.addEventListener('click', getStarted);
+  var buttonGetStarted = document.getElementById("buttonGetStarted");
+  buttonGetStarted.addEventListener("click", getStarted);
 
-  var buttonRetry = document.getElementById('buttonRetry');
-  buttonRetry.addEventListener('click', retry);
+  var buttonRetry = document.getElementById("buttonRetry");
+  buttonRetry.addEventListener("click", retry);
 
-  var oldsync = document.getElementById('oldsync');
-  oldsync.addEventListener('click', handleOldSync);
+  var oldsync = document.getElementById("oldsync");
+  oldsync.addEventListener("click", handleOldSync);
 
-  var buttonOpenPrefs = document.getElementById('buttonOpenPrefs')
-  buttonOpenPrefs.addEventListener('click', openPrefs);
+  var buttonOpenPrefs = document.getElementById("buttonOpenPrefs")
+  buttonOpenPrefs.addEventListener("click", openPrefs);
 }, true);
 
 function initObservers() {
   function observe(subject, topic, data) {
     log("about:accounts observed " + topic);
     if (topic == fxAccountsCommon.ONLOGOUT_NOTIFICATION) {
       // All about:account windows get changed to action=signin on logout.
       window.location = "about:accounts?action=signin";

--- a/browser/base/content/browser-places.js
+++ b/browser/base/content/browser-places.js
@@ -1692,17 +1692,17 @@ var BookmarkingUI = {
       let widthDiff = referenceRect.width - rectToPosition.width;
       return [(leftDiff + .5 * widthDiff) + "px", (topDiff + .5 * heightDiff) + "px"];
     }
 
     if (this._notificationTimeout) {
       clearTimeout(this._notificationTimeout);
     }
 
-    if (this.notifier.style.transform == '') {
+    if (this.notifier.style.transform == "") {
       // Get all the relevant nodes and computed style objects
       let dropmarker = document.getAnonymousElementByAttribute(this.button, "anonid", "dropmarker");
       let dropmarkerIcon = document.getAnonymousElementByAttribute(dropmarker, "class", "dropmarker-icon");
       let dropmarkerStyle = getComputedStyle(dropmarkerIcon);
 
       // Check for RTL and get bounds
       let isRTL = getComputedStyle(this.button).direction == "rtl";
       let buttonRect = this.button.getBoundingClientRect();
@@ -1737,18 +1737,18 @@ var BookmarkingUI = {
       this.dropmarkerNotifier.setAttribute("notification", "finish");
     }
 
     this._notificationTimeout = setTimeout( () => {
       this.notifier.removeAttribute("notification");
       this.dropmarkerNotifier.removeAttribute("notification");
       this.button.removeAttribute("notification");
 
-      this.dropmarkerNotifier.style.transform = '';
-      this.notifier.style.transform = '';
+      this.dropmarkerNotifier.style.transform = "";
+      this.notifier.style.transform = "";
     }, 1000);
   },
 
   _showSubview() {
     let view = document.getElementById("PanelUI-bookmarks");
     view.addEventListener("ViewShowing", this);
     view.addEventListener("ViewHiding", this);
     let anchor = document.getElementById(this.BOOKMARK_BUTTON_ID);

--- a/browser/base/content/browser-plugins.js
+++ b/browser/base/content/browser-plugins.js
@@ -413,17 +413,17 @@ var gPluginHandler = {
             }
           }
         }
       ];
       n = notificationBox.
         appendNotification(message, "plugin-hidden", null,
                            notificationBox.PRIORITY_INFO_HIGH, buttons);
       if (haveInsecure) {
-        n.classList.add('pluginVulnerable');
+        n.classList.add("pluginVulnerable");
       }
     }
 
     if (actions.length == 0) {
       hideNotification();
     } else {
       let notificationPermission = Services.perms.testPermissionFromPrincipal(
         principal, "plugin-hidden-notification");

--- a/browser/base/content/browser-syncui.js
+++ b/browser/base/content/browser-syncui.js
@@ -427,19 +427,19 @@ var gSyncUI = {
     let sixDaysAgo = (() => {
       let tempDate = new Date();
       tempDate.setDate(tempDate.getDate() - 6);
       tempDate.setHours(0, 0, 0, 0);
       return tempDate;
     })();
     // It may be confusing for the user to see "Last Sync: Monday" when the last sync was a indeed a Monday but 3 weeks ago
     if (date < sixDaysAgo) {
-      dateFormat = {month: 'long', day: 'numeric'};
+      dateFormat = {month: "long", day: "numeric"};
     } else {
-      dateFormat = {weekday: 'long', hour: 'numeric', minute: 'numeric'};
+      dateFormat = {weekday: "long", hour: "numeric", minute: "numeric"};
     }
     let lastSyncDateString = date.toLocaleDateString(undefined, dateFormat);
     return this._stringBundle.formatStringFromName("lastSync2.label", [lastSyncDateString], 1);
   },
 
   onClientsSynced() {
     let broadcaster = document.getElementById("sync-syncnow-state");
     if (broadcaster) {

--- a/browser/base/content/browser.js
+++ b/browser/base/content/browser.js
@@ -113,17 +113,17 @@ if (AppConstants.MOZ_CRASHREPORTER) {
 
 XPCOMUtils.defineLazyGetter(this, "BrowserToolboxProcess", function() {
   let tmp = {};
   Cu.import("resource://devtools/client/framework/ToolboxProcess.jsm", tmp);
   return tmp.BrowserToolboxProcess;
 });
 
 XPCOMUtils.defineLazyGetter(this, "gBrowserBundle", function() {
-  return Services.strings.createBundle('chrome://browser/locale/browser.properties');
+  return Services.strings.createBundle("chrome://browser/locale/browser.properties");
 });
 
 XPCOMUtils.defineLazyGetter(this, "gCustomizeMode", function() {
   let scope = {};
   Cu.import("resource:///modules/CustomizeMode.jsm", scope);
   return new scope.CustomizeMode(window);
 });
 
@@ -748,17 +748,17 @@ function gKeywordURIFixup({ target: brow
   // Additionally, we need the host of the parsed url
   let hostName = alternativeURI.host;
   // and the ascii-only host for the pref:
   let asciiHost = alternativeURI.asciiHost;
   // Normalize out a single trailing dot - NB: not using endsWith/lastIndexOf
   // because we need to be sure this last dot is the *only* dot, too.
   // More generally, this is used for the pref and should stay in sync with
   // the code in nsDefaultURIFixup::KeywordURIFixup .
-  if (asciiHost.indexOf('.') == asciiHost.length - 1) {
+  if (asciiHost.indexOf(".") == asciiHost.length - 1) {
     asciiHost = asciiHost.slice(0, -1);
   }
 
   let isIPv4Address = host => {
     let parts = host.split(".");
     if (parts.length != 4) {
       return false;
     }
@@ -844,17 +844,17 @@ function gKeywordURIFixup({ target: brow
 // A shared function used by both remote and non-remote browser XBL bindings to
 // load a URI or redirect it to the correct process.
 function _loadURIWithFlags(browser, uri, params) {
   if (!uri) {
     uri = "about:blank";
   }
   let flags = params.flags || 0;
   let referrer = params.referrerURI;
-  let referrerPolicy = ('referrerPolicy' in params ? params.referrerPolicy :
+  let referrerPolicy = ("referrerPolicy" in params ? params.referrerPolicy :
                         Ci.nsIHttpChannel.REFERRER_POLICY_UNSET);
   let postData = params.postData;
 
   let currentRemoteType = browser.remoteType;
   let requiredRemoteType =
     E10SUtils.getRemoteTypeForURI(uri, gMultiProcessBrowser, currentRemoteType);
   let mustChangeProcess = requiredRemoteType != currentRemoteType;
 
@@ -1587,34 +1587,34 @@ var gBrowserInit = {
 };
 
 if (AppConstants.platform == "macosx") {
   // nonBrowserWindowStartup(), nonBrowserWindowDelayedStartup(), and
   // nonBrowserWindowShutdown() are used for non-browser windows in
   // macBrowserOverlay
   gBrowserInit.nonBrowserWindowStartup = function() {
     // Disable inappropriate commands / submenus
-    var disabledItems = ['Browser:SavePage',
-                         'Browser:SendLink', 'cmd_pageSetup', 'cmd_print', 'cmd_find', 'cmd_findAgain',
-                         'viewToolbarsMenu', 'viewSidebarMenuMenu', 'Browser:Reload',
-                         'viewFullZoomMenu', 'pageStyleMenu', 'charsetMenu', 'View:PageSource', 'View:FullScreen',
-                         'viewHistorySidebar', 'Browser:AddBookmarkAs', 'Browser:BookmarkAllTabs',
-                         'View:PageInfo'];
+    var disabledItems = ["Browser:SavePage",
+                         "Browser:SendLink", "cmd_pageSetup", "cmd_print", "cmd_find", "cmd_findAgain",
+                         "viewToolbarsMenu", "viewSidebarMenuMenu", "Browser:Reload",
+                         "viewFullZoomMenu", "pageStyleMenu", "charsetMenu", "View:PageSource", "View:FullScreen",
+                         "viewHistorySidebar", "Browser:AddBookmarkAs", "Browser:BookmarkAllTabs",
+                         "View:PageInfo"];
     var element;
 
     for (let disabledItem of disabledItems) {
       element = document.getElementById(disabledItem);
       if (element)
         element.setAttribute("disabled", "true");
     }
 
     // If no windows are active (i.e. we're the hidden window), disable the close, minimize
     // and zoom menu commands as well
     if (window.location.href == "chrome://browser/content/hiddenWindow.xul") {
-      var hiddenWindowDisabledItems = ['cmd_close', 'minimizeWindow', 'zoomWindow'];
+      var hiddenWindowDisabledItems = ["cmd_close", "minimizeWindow", "zoomWindow"];
       for (let hiddenWindowDisabledItem of hiddenWindowDisabledItems) {
         element = document.getElementById(hiddenWindowDisabledItem);
         if (element)
           element.setAttribute("disabled", "true");
       }
 
       // also hide the window-list separator
       element = document.getElementById("sep-window-list");
@@ -1717,17 +1717,17 @@ function HandleAppCommandEvent(evt) {
     break;
   case "Close":
     BrowserCloseTabOrWindow();
     break;
   case "Find":
     gFindBar.onFindCommand();
     break;
   case "Help":
-    openHelpLink('firefox-help');
+    openHelpLink("firefox-help");
     break;
   case "Open":
     BrowserOpenFileWindow();
     break;
   case "Print":
     PrintUtils.printWindow(gBrowser.selectedBrowser.outerWindowID,
                            gBrowser.selectedBrowser);
     break;
@@ -2926,18 +2926,18 @@ var BrowserOnClick = {
               params.prefetchCert = true;
             case 1 : // Pre-populate
               params.location = location;
           }
         } catch (e) {
           Components.utils.reportError("Couldn't get ssl_override pref: " + e);
         }
 
-        window.openDialog('chrome://pippki/content/exceptionDialog.xul',
-                          '', 'chrome,centerscreen,modal', params);
+        window.openDialog("chrome://pippki/content/exceptionDialog.xul",
+                          "", "chrome,centerscreen,modal", params);
 
         // If the user added the exception cert, attempt to reload the page
         if (params.exceptionAdded) {
           browser.reload();
         }
         break;
 
       case "returnButton":
@@ -2995,23 +2995,23 @@ var BrowserOnClick = {
     Services.obs.addObserver(tabCloser, "captive-portal-login-success", false);
   },
 
   onAboutBlocked(elementId, reason, isTopFrame, location) {
     // Depending on what page we are displaying here (malware/phishing/unwanted)
     // use the right strings and links for each.
     let bucketName = "";
     let sendTelemetry = false;
-    if (reason === 'malware') {
+    if (reason === "malware") {
       sendTelemetry = true;
       bucketName = "WARNING_MALWARE_PAGE_";
-    } else if (reason === 'phishing') {
+    } else if (reason === "phishing") {
       sendTelemetry = true;
       bucketName = "WARNING_PHISHING_PAGE_";
-    } else if (reason === 'unwanted') {
+    } else if (reason === "unwanted") {
       sendTelemetry = true;
       bucketName = "WARNING_UNWANTED_PAGE_";
     }
     let secHistogram = Services.telemetry.getHistogramById("SECURITY_UI");
     let nsISecTel = Ci.nsISecurityUITelemetry;
     bucketName += isTopFrame ? "TOP_" : "FRAME_";
     switch (elementId) {
       case "getMeOutButton":
@@ -3080,35 +3080,35 @@ var BrowserOnClick = {
 
     let buttons = [{
       label: gNavigatorBundle.getString("safebrowsing.getMeOutOfHereButton.label"),
       accessKey: gNavigatorBundle.getString("safebrowsing.getMeOutOfHereButton.accessKey"),
       callback() { getMeOutOfHere(); }
     }];
 
     let title;
-    if (reason === 'malware') {
+    if (reason === "malware") {
       title = gNavigatorBundle.getString("safebrowsing.reportedAttackSite");
       buttons[1] = {
         label: gNavigatorBundle.getString("safebrowsing.notAnAttackButton.label"),
         accessKey: gNavigatorBundle.getString("safebrowsing.notAnAttackButton.accessKey"),
         callback() {
-          openUILinkIn(gSafeBrowsing.getReportURL('MalwareMistake'), 'tab');
+          openUILinkIn(gSafeBrowsing.getReportURL("MalwareMistake"), "tab");
         }
       };
-    } else if (reason === 'phishing') {
+    } else if (reason === "phishing") {
       title = gNavigatorBundle.getString("safebrowsing.deceptiveSite");
       buttons[1] = {
         label: gNavigatorBundle.getString("safebrowsing.notADeceptiveSiteButton.label"),
         accessKey: gNavigatorBundle.getString("safebrowsing.notADeceptiveSiteButton.accessKey"),
         callback() {
-          openUILinkIn(gSafeBrowsing.getReportURL('PhishMistake'), 'tab');
+          openUILinkIn(gSafeBrowsing.getReportURL("PhishMistake"), "tab");
         }
       };
-    } else if (reason === 'unwanted') {
+    } else if (reason === "unwanted") {
       title = gNavigatorBundle.getString("safebrowsing.reportedUnwantedSite");
       // There is no button for reporting errors since Google doesn't currently
       // provide a URL endpoint for these reports.
     }
 
     let notificationBox = gBrowser.getNotificationBox();
     let value = "blocked-badware-page";
 
@@ -3306,17 +3306,17 @@ function getDetailedCertErrorInfo(locati
   return certErrorDetails;
 }
 
 // TODO: can we pull getDERString and getPEMString in from pippki.js instead of
 // duplicating them here?
 function getDERString(cert) {
   var length = {};
   var derArray = cert.getRawDER(length);
-  var derString = '';
+  var derString = "";
   for (var i = 0; i < derArray.length; i++) {
     derString += String.fromCharCode(derArray[i]);
   }
   return derString;
 }
 
 function getPEMString(cert) {
   var derb64 = btoa(getDERString(cert));
@@ -4042,17 +4042,17 @@ function OpenBrowserWindow(options) {
   // is being closed right after it was opened to avoid leaking.
   Services.obs.addObserver(newDocumentShown, "document-shown", false);
   Services.obs.addObserver(windowClosed, "domwindowclosed", false);
 
   var charsetArg = new String();
   var handler = Components.classes["@mozilla.org/browser/clh;1"]
                           .getService(Components.interfaces.nsIBrowserHandler);
   var defaultArgs = handler.defaultArgs;
-  var wintype = document.documentElement.getAttribute('windowtype');
+  var wintype = document.documentElement.getAttribute("windowtype");
 
   var extraFeatures = "";
   if (options && options.private) {
     extraFeatures = ",private";
     if (!PrivateBrowsingUtils.permanentPrivateBrowsing) {
       // Force the new window to load about:privatebrowsing instead of the default home page
       defaultArgs = "about:privatebrowsing";
     }
@@ -4153,17 +4153,17 @@ function updateEditUIVisibility() {
  * sourceEvent. This attribute is propagated to the top level originAttributes
  * living on the tab's docShell.
  *
  * @param event
  *        A click event on a userContext File Menu option
  */
 function openNewUserContextTab(event) {
   openUILinkIn(BROWSER_NEW_TAB_URL, "tab", {
-    userContextId: parseInt(event.target.getAttribute('data-usercontextid')),
+    userContextId: parseInt(event.target.getAttribute("data-usercontextid")),
   });
 }
 
 /**
  * Updates File Menu User Context UI visibility depending on
  * privacy.userContext.enabled pref state.
  */
 function updateUserContextUIVisibility() {
@@ -4450,26 +4450,26 @@ var XULBrowserWindow = {
           }
         }
 
         this.status = "";
         this.setDefaultStatus(msg);
 
         // Disable menu entries for images, enable otherwise
         if (browser.documentContentType && BrowserUtils.mimeTypeIsTextBased(browser.documentContentType)) {
-          this.isImage.removeAttribute('disabled');
+          this.isImage.removeAttribute("disabled");
         } else {
           canViewSource = false;
-          this.isImage.setAttribute('disabled', 'true');
+          this.isImage.setAttribute("disabled", "true");
         }
 
         if (canViewSource) {
-          this.canViewSource.removeAttribute('disabled');
+          this.canViewSource.removeAttribute("disabled");
         } else {
-          this.canViewSource.setAttribute('disabled', 'true');
+          this.canViewSource.setAttribute("disabled", "true");
         }
       }
 
       this.isBusy = false;
 
       if (this._busyUI) {
         this._busyUI = false;
 
@@ -4502,19 +4502,19 @@ var XULBrowserWindow = {
         }
       }
     }
 
     let browser = gBrowser.selectedBrowser;
 
     // Disable menu entries for images, enable otherwise
     if (browser.documentContentType && BrowserUtils.mimeTypeIsTextBased(browser.documentContentType))
-      this.isImage.removeAttribute('disabled');
+      this.isImage.removeAttribute("disabled");
     else
-      this.isImage.setAttribute('disabled', 'true');
+      this.isImage.setAttribute("disabled", "true");
 
     this.hideOverLinkImmediately = true;
     this.setOverLink("", null);
     this.hideOverLinkImmediately = false;
 
     // We should probably not do this if the value has changed since the user
     // searched
     // Update urlbar only if a new page was loaded on the primary content area
@@ -5322,17 +5322,17 @@ var gHomeButton = {
     this.updateTooltip();
   },
 
   updateTooltip(homeButton) {
     if (!homeButton)
       homeButton = document.getElementById("home-button");
     if (homeButton) {
       var homePage = this.getHomePage();
-      homePage = homePage.replace(/\|/g, ', ');
+      homePage = homePage.replace(/\|/g, ", ");
       if (["about:home", "about:newtab"].includes(homePage.toLowerCase()))
         homeButton.setAttribute("tooltiptext", homeButton.getAttribute("aboutHomeOverrideTooltip"));
       else
         homeButton.setAttribute("tooltiptext", homePage);
     }
   },
 
   getHomePage() {

--- a/browser/base/content/content.js
+++ b/browser/base/content/content.js
@@ -259,21 +259,21 @@ function getSerializedSecurityInfo(docSh
 
   return serhelper.serializeToString(securityInfo);
 }
 
 var AboutNetAndCertErrorListener = {
   init(chromeGlobal) {
     addMessageListener("CertErrorDetails", this);
     addMessageListener("Browser:CaptivePortalFreed", this);
-    chromeGlobal.addEventListener('AboutNetErrorLoad', this, false, true);
-    chromeGlobal.addEventListener('AboutNetErrorOpenCaptivePortal', this, false, true);
-    chromeGlobal.addEventListener('AboutNetErrorSetAutomatic', this, false, true);
-    chromeGlobal.addEventListener('AboutNetErrorOverride', this, false, true);
-    chromeGlobal.addEventListener('AboutNetErrorResetPreferences', this, false, true);
+    chromeGlobal.addEventListener("AboutNetErrorLoad", this, false, true);
+    chromeGlobal.addEventListener("AboutNetErrorOpenCaptivePortal", this, false, true);
+    chromeGlobal.addEventListener("AboutNetErrorSetAutomatic", this, false, true);
+    chromeGlobal.addEventListener("AboutNetErrorOverride", this, false, true);
+    chromeGlobal.addEventListener("AboutNetErrorResetPreferences", this, false, true);
   },
 
   get isAboutNetError() {
     return content.document.documentURI.startsWith("about:neterror");
   },
 
   get isAboutCertError() {
     return content.document.documentURI.startsWith("about:certerror");
@@ -542,21 +542,21 @@ var ClickEventHandler = {
       location: ownerDoc.location.href,
       elementId: targetElement.getAttribute("id"),
       isTopFrame: (ownerDoc.defaultView.parent === ownerDoc.defaultView),
       securityInfoAsString: getSerializedSecurityInfo(docShell),
     });
   },
 
   onAboutBlocked(targetElement, ownerDoc) {
-    var reason = 'phishing';
+    var reason = "phishing";
     if (/e=malwareBlocked/.test(ownerDoc.documentURI)) {
-      reason = 'malware';
+      reason = "malware";
     } else if (/e=unwantedBlocked/.test(ownerDoc.documentURI)) {
-      reason = 'unwanted';
+      reason = "unwanted";
     }
     sendAsyncMessage("Browser:SiteBlockedError", {
       location: ownerDoc.location.href,
       reason,
       elementId: targetElement.getAttribute("id"),
       isTopFrame: (ownerDoc.defaultView.parent === ownerDoc.defaultView)
     });
   },

--- a/browser/base/content/contentSearchUI.js
+++ b/browser/base/content/contentSearchUI.js
@@ -618,17 +618,17 @@ ContentSearchUIController.prototype = {
 
   _updateSearchWithHeader() {
     if (!this._strings) {
       return;
     }
     let searchWithHeader = document.getElementById("contentSearchSearchWithHeader");
     if (this.input.value) {
       searchWithHeader.innerHTML = this._strings.searchForSomethingWith;
-      searchWithHeader.querySelector('.contentSearchSearchWithHeaderSearchText').textContent = this.input.value;
+      searchWithHeader.querySelector(".contentSearchSearchWithHeaderSearchText").textContent = this.input.value;
     } else {
       searchWithHeader.textContent = this._strings.searchWithHeader;
     }
   },
 
   _speculativeConnect() {
     if (this.defaultEngine) {
       this._sendMsg("SpeculativeConnect", this.defaultEngine.name);

--- a/browser/base/content/pageinfo/pageInfo.js
+++ b/browser/base/content/pageinfo/pageInfo.js
@@ -147,18 +147,18 @@ const COL_IMAGE_NODE    = 5;
 const COL_IMAGE_BG      = 6;
 
 // column number to copy from, second argument to pageInfoTreeView's constructor
 const COPYCOL_NONE = -1;
 const COPYCOL_META_CONTENT = 1;
 const COPYCOL_IMAGE = COL_IMAGE_ADDRESS;
 
 // one nsITreeView for each tree in the window
-var gMetaView = new pageInfoTreeView('metatree', COPYCOL_META_CONTENT);
-var gImageView = new pageInfoTreeView('imagetree', COPYCOL_IMAGE);
+var gMetaView = new pageInfoTreeView("metatree", COPYCOL_META_CONTENT);
+var gImageView = new pageInfoTreeView("imagetree", COPYCOL_IMAGE);
 
 gImageView.getCellProperties = function(row, col) {
   var data = gImageView.data[row];
   var item = gImageView.data[row][COL_IMAGE_NODE];
   var props = "";
   if (!checkProtocol(data) ||
       item instanceof HTMLEmbedElement ||
       (item instanceof HTMLObjectElement && !item.type.startsWith("image/")))
@@ -1000,31 +1000,31 @@ function formatNumber(number) {
 function formatDate(datestr, unknown) {
   var date = new Date(datestr);
   if (!date.valueOf())
     return unknown;
 
   const locale = Components.classes["@mozilla.org/chrome/chrome-registry;1"]
                  .getService(Components.interfaces.nsIXULChromeRegistry)
                  .getSelectedLocale("global", true);
-  const dtOptions = { year: 'numeric', month: 'long', day: 'numeric',
-                      hour: 'numeric', minute: 'numeric', second: 'numeric' };
+  const dtOptions = { year: "numeric", month: "long", day: "numeric",
+                      hour: "numeric", minute: "numeric", second: "numeric" };
   return date.toLocaleString(locale, dtOptions);
 }
 
 function doCopy() {
   if (!gClipboardHelper)
     return;
 
   var elem = document.commandDispatcher.focusedElement;
 
   if (elem && "treeBoxObject" in elem) {
     var view = elem.view;
     var selection = view.selection;
-    var text = [], tmp = '';
+    var text = [], tmp = "";
     var min = {}, max = {};
 
     var count = selection.getRangeCount();
 
     for (var i = 0; i < count; i++) {
       selection.getRangeAt(i, min, max);
 
       for (var row = min.value; row <= max.value; row++) {

--- a/browser/base/content/pageinfo/permissions.js
+++ b/browser/base/content/pageinfo/permissions.js
@@ -156,23 +156,23 @@ function onCheckboxClick(aPartId) {
     setRadioState(aPartId, perm);
   } else {
     onRadioClick(aPartId);
     command.removeAttribute("disabled");
   }
 }
 
 function onPluginRadioClick(aEvent) {
-  onRadioClick(aEvent.originalTarget.getAttribute("id").split('#')[0]);
+  onRadioClick(aEvent.originalTarget.getAttribute("id").split("#")[0]);
 }
 
 function onRadioClick(aPartId) {
   var radioGroup = document.getElementById(aPartId + "RadioGroup");
   var id = radioGroup.selectedItem.id;
-  var permission = id.split('#')[1];
+  var permission = id.split("#")[1];
   SitePermissions.set(gPermURI, aPartId, permission);
 }
 
 function setRadioState(aPartId, aValue) {
   var radio = document.getElementById(aPartId + "#" + aValue);
   if (radio) {
     radio.radioGroup.selectedItem = radio;
   }

--- a/browser/base/content/tab-content.js
+++ b/browser/base/content/tab-content.js
@@ -100,17 +100,17 @@ addMessageListener("SecondScreen:tab-mir
     let height = content.innerHeight;
     let viewport = {cssWidth: width, cssHeight: height, width, height};
     app.mirror(function() {}, content, viewport, function() {}, content);
   }
 });
 
 var AboutHomeListener = {
   init(chromeGlobal) {
-    chromeGlobal.addEventListener('AboutHomeLoad', this, false, true);
+    chromeGlobal.addEventListener("AboutHomeLoad", this, false, true);
   },
 
   get isAboutHome() {
     return content.document.documentURI.toLowerCase() == "about:home";
   },
 
   handleEvent(aEvent) {
     if (!this.isAboutHome) {

--- a/browser/base/content/test/general/browser_aboutCertError.js
+++ b/browser/base/content/test/general/browser_aboutCertError.js
@@ -374,17 +374,17 @@ function getCertChain(securityInfoAsStri
     certChain += getPEMString(cert);
   }
   return certChain;
 }
 
 function getDERString(cert) {
   var length = {};
   var derArray = cert.getRawDER(length);
-  var derString = '';
+  var derString = "";
   for (var i = 0; i < derArray.length; i++) {
     derString += String.fromCharCode(derArray[i]);
   }
   return derString;
 }
 
 function getPEMString(cert) {
   var derb64 = btoa(getDERString(cert));

--- a/browser/base/content/test/general/browser_blob-channelname.js
+++ b/browser/base/content/test/general/browser_blob-channelname.js
@@ -1,11 +1,11 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 Cu.import("resource://gre/modules/NetUtil.jsm");
 
 function test() {
-    var file = new File([new Blob(['test'], {type: 'text/plain'})], "test-name");
+    var file = new File([new Blob(["test"], {type: "text/plain"})], "test-name");
     var url = URL.createObjectURL(file);
     var channel = NetUtil.newChannel({uri: url, loadUsingSystemPrincipal: true});
 
-    is(channel.contentDispositionFilename, 'test-name', "filename matches");
+    is(channel.contentDispositionFilename, "test-name", "filename matches");
 }

--- a/browser/base/content/test/general/browser_bookmark_titles.js
+++ b/browser/base/content/test/general/browser_bookmark_titles.js
@@ -1,27 +1,27 @@
 /* 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/. */
 
 // This file is tests for the default titles that new bookmarks get.
 
 var tests = [
     // Common page.
-    ['http://example.com/browser/browser/base/content/test/general/dummy_page.html',
-     'Dummy test page'],
+    ["http://example.com/browser/browser/base/content/test/general/dummy_page.html",
+     "Dummy test page"],
     // Data URI.
-    ['data:text/html;charset=utf-8,<title>test%20data:%20url</title>',
-     'test data: url'],
+    ["data:text/html;charset=utf-8,<title>test%20data:%20url</title>",
+     "test data: url"],
     // about:neterror
-    ['data:application/vnd.mozilla.xul+xml,',
-     'data:application/vnd.mozilla.xul+xml,'],
+    ["data:application/vnd.mozilla.xul+xml,",
+     "data:application/vnd.mozilla.xul+xml,"],
     // about:certerror
-    ['https://untrusted.example.com/somepage.html',
-     'https://untrusted.example.com/somepage.html']
+    ["https://untrusted.example.com/somepage.html",
+     "https://untrusted.example.com/somepage.html"]
 ];
 
 add_task(function* () {
     gBrowser.selectedTab = gBrowser.addTab();
     let browser = gBrowser.selectedBrowser;
     browser.stop(); // stop the about:blank load.
 
     // Test that a bookmark of each URI gets the corresponding default title.
@@ -35,35 +35,35 @@ add_task(function* () {
     }
 
     // Network failure test: now that dummy_page.html is in history, bookmarking
     // it should give the last known page title as the default bookmark title.
 
     // Simulate a network outage with offline mode. (Localhost is still
     // accessible in offline mode, so disable the test proxy as well.)
     BrowserOffline.toggleOfflineStatus();
-    let proxy = Services.prefs.getIntPref('network.proxy.type');
-    Services.prefs.setIntPref('network.proxy.type', 0);
+    let proxy = Services.prefs.getIntPref("network.proxy.type");
+    Services.prefs.setIntPref("network.proxy.type", 0);
     registerCleanupFunction(function() {
         BrowserOffline.toggleOfflineStatus();
-        Services.prefs.setIntPref('network.proxy.type', proxy);
+        Services.prefs.setIntPref("network.proxy.type", proxy);
     });
 
     // LOAD_FLAGS_BYPASS_CACHE isn't good enough. So clear the cache.
     Services.cache2.clear();
 
     let [uri, title] = tests[0];
 
     let promiseLoaded = promisePageLoaded(browser);
     BrowserTestUtils.loadURI(browser, uri);
     yield promiseLoaded;
 
     // The offline mode test is only good if the page failed to load.
     yield ContentTask.spawn(browser, null, function() {
-      is(content.document.documentURI.substring(0, 14), 'about:neterror',
+      is(content.document.documentURI.substring(0, 14), "about:neterror",
           "Offline mode successfully simulated network outage.");
     });
     yield checkBookmark(uri, title);
 
     gBrowser.removeCurrentTab();
 });
 
 // Bookmark the current page and confirm that the new bookmark has the expected

--- a/browser/base/content/test/general/browser_bug1045809.js
+++ b/browser/base/content/test/general/browser_bug1045809.js
@@ -32,31 +32,31 @@ add_task(function* () {
   // Test 3: mixed content must be blocked again
   yield promiseTabLoadEvent(tab);
   yield* test3(gBrowser.getBrowserForTab(tab));
 });
 
 function* test1(gTestBrowser) {
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: false, activeBlocked: true, passiveLoaded: false});
 
-  var x = content.document.getElementsByTagName('iframe')[0].contentDocument.getElementById('mixedContentContainer');
+  var x = content.document.getElementsByTagName("iframe")[0].contentDocument.getElementById("mixedContentContainer");
   is(x, null, "Mixed Content is NOT to be found in Test1");
 
   // Disable Mixed Content Protection for the page (and reload)
   gIdentityHandler.disableMixedContentProtection();
 }
 
 function* test2(gTestBrowser) {
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: true, activeBlocked: false, passiveLoaded: false});
 
-  var x = content.document.getElementsByTagName('iframe')[0].contentDocument.getElementById('mixedContentContainer');
+  var x = content.document.getElementsByTagName("iframe")[0].contentDocument.getElementById("mixedContentContainer");
   isnot(x, null, "Mixed Content is to be found in Test2");
 
   // Re-enable Mixed Content Protection for the page (and reload)
   gIdentityHandler.enableMixedContentProtection();
 }
 
 function* test3(gTestBrowser) {
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: false, activeBlocked: true, passiveLoaded: false});
 
-  var x = content.document.getElementsByTagName('iframe')[0].contentDocument.getElementById('mixedContentContainer');
+  var x = content.document.getElementsByTagName("iframe")[0].contentDocument.getElementById("mixedContentContainer");
   is(x, null, "Mixed Content is NOT to be found in Test3");
 }

--- a/browser/base/content/test/general/browser_bug1261299.js
+++ b/browser/base/content/test/general/browser_bug1261299.js
@@ -6,17 +6,17 @@
 /**
  * Tests for Bug 1261299
  * Test that the service menu code path is called properly and the
  * current selection (transferable) is cached properly on the parent process.
  */
 
 add_task(function* test_content_and_chrome_selection() {
   let testPage =
-    'data:text/html,' +
+    "data:text/html," +
     '<textarea id="textarea">Write something here</textarea>';
   let DOMWindowUtils = EventUtils._getDOMWindowUtils(window);
   let selectedText;
 
   let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, testPage);
   yield BrowserTestUtils.synthesizeMouse("#textarea", 0, 0, {}, gBrowser.selectedBrowser);
   yield BrowserTestUtils.synthesizeKey("KEY_ArrowRight",
       {shiftKey: true, ctrlKey: true, code: "ArrowRight"}, gBrowser.selectedBrowser);
@@ -35,20 +35,20 @@ add_task(function* test_content_and_chro
 
 // Test switching active selection.
 // Each tab has a content selection and when you switch to that tab, its selection becomes
 // active aka the current selection.
 // Expect: The active selection is what is being sent to OSX service menu.
 
 add_task(function* test_active_selection_switches_properly() {
   let testPage1 =
-    'data:text/html,' +
+    "data:text/html," +
     '<textarea id="textarea">Write something here</textarea>';
   let testPage2 =
-    'data:text/html,' +
+    "data:text/html," +
     '<textarea id="textarea">Nothing available</textarea>';
   let DOMWindowUtils = EventUtils._getDOMWindowUtils(window);
   let selectedText;
 
   let tab1 = yield BrowserTestUtils.openNewForegroundTab(gBrowser, testPage1);
   yield BrowserTestUtils.synthesizeMouse("#textarea", 0, 0, {}, gBrowser.selectedBrowser);
   yield BrowserTestUtils.synthesizeKey("KEY_ArrowRight",
       {shiftKey: true, ctrlKey: true, code: "ArrowRight"}, gBrowser.selectedBrowser);

--- a/browser/base/content/test/general/browser_bug1297539.js
+++ b/browser/base/content/test/general/browser_bug1297539.js
@@ -49,48 +49,48 @@ function* cutCurrentSelection(elementQue
         `${contentElementQueryString} should be empty after cut (superkey + x)`);
     });
 }
 
 // Test that you are able to pasteTransferable for plain text
 // which is handled by TextEditor::PasteTransferable to paste into the editor.
 add_task(function* test_paste_transferable_plain_text() {
   let testPage =
-    'data:text/html,' +
+    "data:text/html," +
     '<textarea id="textarea">Write something here</textarea>';
 
   yield BrowserTestUtils.withNewTab(testPage, function* (browser) {
     // Select all the content in your editor element.
     yield BrowserTestUtils.synthesizeMouse("#textarea", 0, 0, {}, browser);
     yield BrowserTestUtils.synthesizeKey("a", {accelKey: true}, browser);
 
     yield* cutCurrentSelection("#textarea", "value", browser);
 
     let trans = getTransferableFromClipboard(false);
     let DOMWindowUtils = EventUtils._getDOMWindowUtils(window);
     DOMWindowUtils.sendContentCommandEvent("pasteTransferable", trans);
 
     yield ContentTask.spawn(browser, null, function* () {
-      let textArea = content.document.querySelector('#textarea');
+      let textArea = content.document.querySelector("#textarea");
       is(textArea.value, "Write something here",
          "Send content command pasteTransferable successful");
     });
   });
 });
 
 // Test that you are able to pasteTransferable for html
 // which is handled by HTMLEditor::PasteTransferable to paste into the editor.
 //
 // On Linux,
 // BrowserTestUtils.synthesizeKey("a", {accelKey: true}, browser);
 // doesn't seem to trigger for contenteditable which is why we use
 // Selection to select the contenteditable contents.
 add_task(function* test_paste_transferable_html() {
   let testPage =
-    'data:text/html,' +
+    "data:text/html," +
     '<div contenteditable="true"><b>Bold Text</b><i>italics</i></div>';
 
   yield BrowserTestUtils.withNewTab(testPage, function* (browser) {
     // Select all the content in your editor element.
     yield BrowserTestUtils.synthesizeMouse("div", 0, 0, {}, browser);
     yield ContentTask.spawn(browser, {}, function* () {
       let element = content.document.querySelector("div");
       let selection = content.window.getSelection();
@@ -99,14 +99,14 @@ add_task(function* test_paste_transferab
 
     yield* cutCurrentSelection("div", "textContent", browser);
 
     let trans = getTransferableFromClipboard(true);
     let DOMWindowUtils = EventUtils._getDOMWindowUtils(window);
     DOMWindowUtils.sendContentCommandEvent("pasteTransferable", trans);
 
     yield ContentTask.spawn(browser, null, function* () {
-      let textArea = content.document.querySelector('div');
+      let textArea = content.document.querySelector("div");
       is(textArea.innerHTML, "<b>Bold Text</b><i>italics</i>",
          "Send content command pasteTransferable successful");
     });
   });
 });

--- a/browser/base/content/test/general/browser_bug321000.js
+++ b/browser/base/content/test/general/browser_bug321000.js
@@ -5,22 +5,22 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 const kTestString = "  hello hello  \n  world\nworld  ";
 
 var gTests = [
 
   { desc: "Urlbar strips newlines and surrounding whitespace",
     element: gURLBar,
-    expected: kTestString.replace(/\s*\n\s*/g, '')
+    expected: kTestString.replace(/\s*\n\s*/g, "")
   },
 
   { desc: "Searchbar replaces newlines with spaces",
-    element: document.getElementById('searchbar'),
-    expected: kTestString.replace(/\n/g, ' ')
+    element: document.getElementById("searchbar"),
+    expected: kTestString.replace(/\n/g, " ")
   },
 
 ];
 
 // Test for bug 23485 and bug 321000.
 // Urlbar should strip newlines,
 // search bar should replace newlines with spaces.
 function test() {

--- a/browser/base/content/test/general/browser_bug423833.js
+++ b/browser/base/content/test/general/browser_bug423833.js
@@ -1,13 +1,13 @@
 /* Tests for proper behaviour of "Show this frame" context menu options */
 
 // Two frames, one with text content, the other an error page
-var invalidPage = 'http://127.0.0.1:55555/';
-var validPage = 'http://example.com/';
+var invalidPage = "http://127.0.0.1:55555/";
+var validPage = "http://example.com/";
 var testPage = 'data:text/html,<frameset cols="400,400"><frame src="' + validPage + '"><frame src="' + invalidPage + '"></frameset>';
 
 // Store the tab and window created in tests 2 and 3 respectively
 var test2tab;
 var test3window;
 
 // We use setInterval instead of setTimeout to avoid race conditions on error doc loads
 var intervalID;

--- a/browser/base/content/test/general/browser_bug427559.js
+++ b/browser/base/content/test/general/browser_bug427559.js
@@ -2,19 +2,19 @@
 
 /*
  * Test bug 427559 to make sure focused elements that are no longer on the page
  * will have focus transferred to the window when changing tabs back to that
  * tab with the now-gone element.
  */
 
 // Default focus on a button and have it kill itself on blur.
-const URL = 'data:text/html;charset=utf-8,' +
+const URL = "data:text/html;charset=utf-8," +
             '<body><button onblur="this.remove()">' +
-            '<script>document.body.firstChild.focus()</script></body>';
+            "<script>document.body.firstChild.focus()</script></body>";
 
 function getFocusedLocalName(browser) {
   return ContentTask.spawn(browser, null, function* () {
     return content.document.activeElement.localName;
   });
 }
 
 add_task(function* () {

--- a/browser/base/content/test/general/browser_bug553455.js
+++ b/browser/base/content/test/general/browser_bug553455.js
@@ -8,23 +8,23 @@ const SECUREROOT = "https://example.com/
 const XPINSTALL_URL = "chrome://mozapps/content/xpinstall/xpinstallConfirm.xul";
 const PREF_INSTALL_REQUIREBUILTINCERTS = "extensions.install.requireBuiltInCerts";
 const PROGRESS_NOTIFICATION = "addon-progress";
 
 const { REQUIRE_SIGNING } = Cu.import("resource://gre/modules/addons/AddonConstants.jsm", {});
 const { Task } = Cu.import("resource://gre/modules/Task.jsm", {});
 
 var rootDir = getRootDirectory(gTestPath);
-var rootPath = rootDir.split('/');
-var chromeName = rootPath[0] + '//' + rootPath[2];
+var rootPath = rootDir.split("/");
+var chromeName = rootPath[0] + "//" + rootPath[2];
 var croot = chromeName + "/content/browser/toolkit/mozapps/extensions/test/xpinstall/";
 var jar = getJar(croot);
 if (jar) {
   var tmpdir = extractJarToTmp(jar);
-  croot = 'file://' + tmpdir.path + '/';
+  croot = "file://" + tmpdir.path + "/";
 }
 const CHROMEROOT = croot;
 
 var gApp = document.getElementById("bundle_brand").getString("brandShortName");
 var gVersion = Services.appinfo.version;
 
 function getObserverTopic(aNotificationId) {
   let topic = aNotificationId;

--- a/browser/base/content/test/general/browser_bug561636.js
+++ b/browser/base/content/test/general/browser_bug561636.js
@@ -1,19 +1,19 @@
-var gInvalidFormPopup = document.getElementById('invalid-form-popup');
+var gInvalidFormPopup = document.getElementById("invalid-form-popup");
 ok(gInvalidFormPopup,
    "The browser should have a popup to show when a form is invalid");
 
 function checkPopupShow() {
-  ok(gInvalidFormPopup.state == 'showing' || gInvalidFormPopup.state == 'open',
+  ok(gInvalidFormPopup.state == "showing" || gInvalidFormPopup.state == "open",
      "[Test " + testId + "] The invalid form popup should be shown");
 }
 
 function checkPopupHide() {
-  ok(gInvalidFormPopup.state != 'showing' && gInvalidFormPopup.state != 'open',
+  ok(gInvalidFormPopup.state != "showing" && gInvalidFormPopup.state != "open",
      "[Test " + testId + "] The invalid form popup should not be shown");
 }
 
 var gObserver = {
   QueryInterface : XPCOMUtils.generateQI([Ci.nsIFormSubmitObserver]),
 
   notifyInvalidSubmit(aFormElement, aInvalidElements) {
   }
@@ -46,34 +46,34 @@ function* openNewTab(uri, background) {
     gBrowser.selectedTab = tab;
   }
   yield promiseTabLoadEvent(tab, "data:text/html," + escape(uri));
   return browser;
 }
 
 function* clickChildElement(browser) {
   yield ContentTask.spawn(browser, {}, function* () {
-    content.document.getElementById('s').click();
+    content.document.getElementById("s").click();
   });
 }
 
 function* blurChildElement(browser) {
   yield ContentTask.spawn(browser, {}, function* () {
-    content.document.getElementById('i').blur();
+    content.document.getElementById("i").blur();
   });
 }
 
 function* checkChildFocus(browser, message) {
   yield ContentTask.spawn(browser, [message, testId], function* (args) {
     let [msg, id] = args;
-    var focused = content.document.activeElement == content.document.getElementById('i');
+    var focused = content.document.activeElement == content.document.getElementById("i");
 
     var validMsg = true;
     if (msg) {
-      validMsg = (msg == content.document.getElementById('i').validationMessage);
+      validMsg = (msg == content.document.getElementById("i").validationMessage);
     }
 
     Assert.equal(focused, true, "Test " + id + " First invalid element should be focused");
     Assert.equal(validMsg, true, "Test " + id + " The panel should show the message from validationMessage");
   });
 }
 
 /**
@@ -280,17 +280,17 @@ add_task(function* () {
         gObserver.notifyInvalidSubmit = function() {};
         resolve();
       });
     };
 
     Services.obs.addObserver(gObserver, "invalidformsubmit", false);
 
     executeSoon(function() {
-      browser.contentDocument.getElementById('s').click();
+      browser.contentDocument.getElementById("s").click();
     });
   });
 
   yield notifierPromise;
 
   gBrowser.removeTab(gBrowser.getTabForBrowser(browser));
 });
 
@@ -325,18 +325,18 @@ add_task(function* () {
 
   let popupShownPromise = promiseWaitForEvent(gInvalidFormPopup, "popupshown");
   yield clickChildElement(browser);
   yield popupShownPromise;
 
   checkPopupShow();
   yield checkChildFocus(browser, gInvalidFormPopup.firstChild.textContent);
 
-  let inputPromise = promiseWaitForEvent(gBrowser.contentDocument.getElementById('i'), "input");
-  EventUtils.synthesizeKey('f', {});
+  let inputPromise = promiseWaitForEvent(gBrowser.contentDocument.getElementById("i"), "input");
+  EventUtils.synthesizeKey("f", {});
   yield inputPromise;
 
   // Now, the element suffers from another error, the message should have
   // been updated.
   yield new Promise((resolve, reject) => {
     // XXXndeakin This isn't really going to work when the content is another process
     executeSoon(function() {
       checkChildFocus(browser, gInvalidFormPopup.firstChild.textContent);

--- a/browser/base/content/test/general/browser_bug595507.js
+++ b/browser/base/content/test/general/browser_bug595507.js
@@ -1,36 +1,36 @@
 /**
  * Make sure that the form validation error message shows even if the form is in an iframe.
  */
 add_task(function* () {
   let uri = "<iframe src=\"data:text/html,<iframe name='t'></iframe><form target='t' action='data:text/html,'><input required id='i'><input id='s' type='submit'></form>\"</iframe>";
 
-  var gInvalidFormPopup = document.getElementById('invalid-form-popup');
+  var gInvalidFormPopup = document.getElementById("invalid-form-popup");
   ok(gInvalidFormPopup,
      "The browser should have a popup to show when a form is invalid");
 
   let tab = gBrowser.addTab();
   let browser = gBrowser.getBrowserForTab(tab);
   gBrowser.selectedTab = tab;
 
   yield promiseTabLoadEvent(tab, "data:text/html," + escape(uri));
 
   let popupShownPromise = promiseWaitForEvent(gInvalidFormPopup, "popupshown");
 
   yield ContentTask.spawn(browser, {}, function* () {
-    content.document.getElementsByTagName('iframe')[0]
-           .contentDocument.getElementById('s').click();
+    content.document.getElementsByTagName("iframe")[0]
+           .contentDocument.getElementById("s").click();
   });
   yield popupShownPromise;
 
   yield ContentTask.spawn(browser, {}, function* () {
-    let childdoc = content.document.getElementsByTagName('iframe')[0].contentDocument;
+    let childdoc = content.document.getElementsByTagName("iframe")[0].contentDocument;
     Assert.equal(childdoc.activeElement, childdoc.getElementById("i"),
       "First invalid element should be focused");
   });
 
-  ok(gInvalidFormPopup.state == 'showing' || gInvalidFormPopup.state == 'open',
+  ok(gInvalidFormPopup.state == "showing" || gInvalidFormPopup.state == "open",
      "The invalid form popup should be shown");
 
   gBrowser.removeCurrentTab();
 });
 

--- a/browser/base/content/test/general/browser_bug633691.js
+++ b/browser/base/content/test/general/browser_bug633691.js
@@ -6,30 +6,30 @@ function test() {
   waitForExplicitFinish();
   gBrowser.selectedTab = gBrowser.addTab("data:text/html,<iframe width='700' height='700'></iframe>");
   // Open a html page with about:certerror in an iframe
   BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser).then(function() {
     return ContentTask.spawn(gBrowser.selectedBrowser, "", function() {
       return new Promise(resolve => {
         info("Running content task");
         let listener = e => {
-          removeEventListener('AboutNetErrorLoad', listener, false, true);
+          removeEventListener("AboutNetErrorLoad", listener, false, true);
           resolve();
         };
-        addEventListener('AboutNetErrorLoad', listener, false, true);
+        addEventListener("AboutNetErrorLoad", listener, false, true);
         let iframe = content.document.querySelector("iframe");
         iframe.src = "https://expired.example.com/";
       });
     }).then(testIframeCert);
   });
 }
 
 function testIframeCert(e) {
   // Confirm that the expert section is hidden
-  var doc = gBrowser.contentDocument.getElementsByTagName('iframe')[0].contentDocument;
+  var doc = gBrowser.contentDocument.getElementsByTagName("iframe")[0].contentDocument;
   var aP = doc.getElementById("badCertAdvancedPanel");
   ok(aP, "Advanced content should exist");
   is_element_hidden(aP, "Advanced content should not be visible by default")
 
   // Clean up
   gBrowser.removeCurrentTab();
 
   finish();

--- a/browser/base/content/test/general/browser_bug822367.js
+++ b/browser/base/content/test/general/browser_bug822367.js
@@ -47,20 +47,20 @@ function MixedTest1A() {
   gTestBrowser.addEventListener("load", MixedTest1B, true);
 
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: false, activeBlocked: true, passiveLoaded: false});
 
   let {gIdentityHandler} = gTestBrowser.ownerGlobal;
   gIdentityHandler.disableMixedContentProtection();
 }
 function MixedTest1B() {
-  waitForCondition(() => content.document.getElementById('p1').innerHTML == "hello", MixedTest1C, "Waited too long for mixed script to run in Test 1");
+  waitForCondition(() => content.document.getElementById("p1").innerHTML == "hello", MixedTest1C, "Waited too long for mixed script to run in Test 1");
 }
 function MixedTest1C() {
-  ok(content.document.getElementById('p1').innerHTML == "hello", "Mixed script didn't load in Test 1");
+  ok(content.document.getElementById("p1").innerHTML == "hello", "Mixed script didn't load in Test 1");
   gTestBrowser.removeEventListener("load", MixedTest1B, true);
   MixedTest2();
 }
 
 // Mixed Display Test - Doorhanger should not appear
 function MixedTest2() {
   gTestBrowser.addEventListener("load", MixedTest2A, true);
   var url = gHttpTestRoot2 + "file_bug822367_2.html";
@@ -84,24 +84,24 @@ function MixedTest3A() {
   gTestBrowser.addEventListener("load", MixedTest3B, true);
 
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: false, activeBlocked: true, passiveLoaded: false});
 
   let {gIdentityHandler} = gTestBrowser.ownerGlobal;
   gIdentityHandler.disableMixedContentProtection();
 }
 function MixedTest3B() {
-  waitForCondition(() => content.document.getElementById('p1').innerHTML == "hello", MixedTest3C, "Waited too long for mixed script to run in Test 3");
+  waitForCondition(() => content.document.getElementById("p1").innerHTML == "hello", MixedTest3C, "Waited too long for mixed script to run in Test 3");
 }
 function MixedTest3C() {
-  waitForCondition(() => content.document.getElementById('p2').innerHTML == "bye", MixedTest3D, "Waited too long for mixed image to load in Test 3");
+  waitForCondition(() => content.document.getElementById("p2").innerHTML == "bye", MixedTest3D, "Waited too long for mixed image to load in Test 3");
 }
 function MixedTest3D() {
-  ok(content.document.getElementById('p1').innerHTML == "hello", "Mixed script didn't load in Test 3");
-  ok(content.document.getElementById('p2').innerHTML == "bye", "Mixed image didn't load in Test 3");
+  ok(content.document.getElementById("p1").innerHTML == "hello", "Mixed script didn't load in Test 3");
+  ok(content.document.getElementById("p2").innerHTML == "bye", "Mixed image didn't load in Test 3");
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: true, activeBlocked: false, passiveLoaded: true});
   MixedTest4();
 }
 
 // Location change - User override on one page doesn't propogate to another page after location change.
 function MixedTest4() {
   gTestBrowser.removeEventListener("load", MixedTest3B, true);
   gTestBrowser.addEventListener("load", MixedTest4A, true);
@@ -120,20 +120,20 @@ function MixedTest4A() {
 function MixedTest4B() {
   waitForCondition(() => content.document.location == gHttpTestRoot + "file_bug822367_4B.html", MixedTest4C, "Waited too long for mixed script to run in Test 4");
 }
 function MixedTest4C() {
   ok(content.document.location == gHttpTestRoot + "file_bug822367_4B.html", "Location didn't change in test 4");
 
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: false, activeBlocked: true, passiveLoaded: false});
 
-  waitForCondition(() => content.document.getElementById('p1').innerHTML == "", MixedTest4D, "Mixed script loaded in test 4 after location change!");
+  waitForCondition(() => content.document.getElementById("p1").innerHTML == "", MixedTest4D, "Mixed script loaded in test 4 after location change!");
 }
 function MixedTest4D() {
-  ok(content.document.getElementById('p1').innerHTML == "", "p1.innerHTML changed; mixed script loaded after location change in Test 4");
+  ok(content.document.getElementById("p1").innerHTML == "", "p1.innerHTML changed; mixed script loaded after location change in Test 4");
   MixedTest5();
 }
 
 // Mixed script attempts to load in a document.open()
 function MixedTest5() {
   gTestBrowser.removeEventListener("load", MixedTest4B, true);
   gTestBrowser.addEventListener("load", MixedTest5A, true);
   var url = gHttpTestRoot + "file_bug822367_5.html";
@@ -144,20 +144,20 @@ function MixedTest5A() {
   gTestBrowser.addEventListener("load", MixedTest5B, true);
 
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: false, activeBlocked: true, passiveLoaded: false});
 
   let {gIdentityHandler} = gTestBrowser.ownerGlobal;
   gIdentityHandler.disableMixedContentProtection();
 }
 function MixedTest5B() {
-  waitForCondition(() => content.document.getElementById('p1').innerHTML == "hello", MixedTest5C, "Waited too long for mixed script to run in Test 5");
+  waitForCondition(() => content.document.getElementById("p1").innerHTML == "hello", MixedTest5C, "Waited too long for mixed script to run in Test 5");
 }
 function MixedTest5C() {
-  ok(content.document.getElementById('p1').innerHTML == "hello", "Mixed script didn't load in Test 5");
+  ok(content.document.getElementById("p1").innerHTML == "hello", "Mixed script didn't load in Test 5");
   MixedTest6();
 }
 
 // Mixed script attempts to load in a document.open() that is within an iframe.
 function MixedTest6() {
   gTestBrowser.removeEventListener("load", MixedTest5B, true);
   gTestBrowser.addEventListener("load", MixedTest6A, true);
   var url = gHttpTestRoot2 + "file_bug822367_6.html";
@@ -177,19 +177,19 @@ function MixedTest6B() {
   let {gIdentityHandler} = gTestBrowser.ownerGlobal;
   gIdentityHandler.disableMixedContentProtection();
 }
 
 function MixedTest6C() {
   gTestBrowser.removeEventListener("load", MixedTest6C, true);
   waitForCondition(function() {
     try {
-      return content.document.getElementById('f1').contentDocument.getElementById('p1').innerHTML == "hello";
+      return content.document.getElementById("f1").contentDocument.getElementById("p1").innerHTML == "hello";
     } catch (e) {
       return false;
     }
   }, MixedTest6D, "Waited too long for mixed script to run in Test 6");
 }
 function MixedTest6D() {
-  ok(content.document.getElementById('f1').contentDocument.getElementById('p1').innerHTML == "hello", "Mixed script didn't load in Test 6");
+  ok(content.document.getElementById("f1").contentDocument.getElementById("p1").innerHTML == "hello", "Mixed script didn't load in Test 6");
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: true, activeBlocked: false, passiveLoaded: false});
   MixedTestsCompleted();
 }

--- a/browser/base/content/test/general/browser_bug839103.js
+++ b/browser/base/content/test/general/browser_bug839103.js
@@ -41,20 +41,20 @@ function continueTest() {
   let doc = gBrowser.contentDocument;
   doc.styleSheetChangeEventsEnabled = true;
   doc.addEventListener("StyleSheetAdded", unexpectedContentEvent);
   doc.addEventListener("StyleSheetRemoved", unexpectedContentEvent);
   doc.addEventListener("StyleSheetApplicableStateChanged", unexpectedContentEvent);
   doc.defaultView.addEventListener("StyleSheetAdded", unexpectedContentEvent);
   doc.defaultView.addEventListener("StyleSheetRemoved", unexpectedContentEvent);
   doc.defaultView.addEventListener("StyleSheetApplicableStateChanged", unexpectedContentEvent);
-  let link = doc.createElement('link');
-  link.setAttribute('rel', 'stylesheet');
-  link.setAttribute('type', 'text/css');
-  link.setAttribute('href', gTestRoot + gStyleSheet);
+  let link = doc.createElement("link");
+  link.setAttribute("rel", "stylesheet");
+  link.setAttribute("type", "text/css");
+  link.setAttribute("href", gTestRoot + gStyleSheet);
   gLinkElement = link;
 
   gBrowser.addEventListener("StyleSheetAdded", dynamicStylesheetAdded, true);
   gBrowser.addEventListener("StyleSheetApplicableStateChanged", dynamicStylesheetApplicableStateChanged, true);
   doc.body.appendChild(link);
 }
 
 function dynamicStylesheetAdded(evt) {

--- a/browser/base/content/test/general/browser_bug902156.js
+++ b/browser/base/content/test/general/browser_bug902156.js
@@ -52,38 +52,38 @@ function test1A() {
   // Disable Mixed Content Protection for the page (and reload)
   let {gIdentityHandler} = gTestBrowser.ownerGlobal;
   gIdentityHandler.disableMixedContentProtection();
 }
 
 function test1B() {
   var expected = "Mixed Content Blocker disabled";
   waitForCondition(
-    () => content.document.getElementById('mctestdiv').innerHTML == expected,
+    () => content.document.getElementById("mctestdiv").innerHTML == expected,
     test1C, "Error: Waited too long for mixed script to run in Test 1B");
 }
 
 function test1C() {
-  var actual = content.document.getElementById('mctestdiv').innerHTML;
+  var actual = content.document.getElementById("mctestdiv").innerHTML;
   is(actual, "Mixed Content Blocker disabled", "OK: Executed mixed script in Test 1C");
 
   // The Script loaded after we disabled the page, now we are going to reload the
   // page and see if our decision is persistent
   BrowserTestUtils.browserLoaded(gTestBrowser).then(test1D);
 
   var url = gHttpTestRoot1 + "file_bug902156_2.html";
   gTestBrowser.loadURI(url);
 }
 
 function test1D() {
   // The Control Center button should appear but isMixedContentBlocked should be NOT true,
   // because our decision of disabling the mixed content blocker is persistent.
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: true, activeBlocked: false, passiveLoaded: false});
 
-  var actual = content.document.getElementById('mctestdiv').innerHTML;
+  var actual = content.document.getElementById("mctestdiv").innerHTML;
   is(actual, "Mixed Content Blocker disabled", "OK: Executed mixed script in Test 1D");
 
   // move on to Test 2
   test2();
 }
 
 // ------------------------ Test 2 ------------------------------
 
@@ -101,39 +101,39 @@ function test2A() {
   // Disable Mixed Content Protection for the page (and reload)
   let {gIdentityHandler} = gTestBrowser.ownerGlobal;
   gIdentityHandler.disableMixedContentProtection();
 }
 
 function test2B() {
   var expected = "Mixed Content Blocker disabled";
   waitForCondition(
-    () => content.document.getElementById('mctestdiv').innerHTML == expected,
+    () => content.document.getElementById("mctestdiv").innerHTML == expected,
     test2C, "Error: Waited too long for mixed script to run in Test 2B");
 }
 
 function test2C() {
-  var actual = content.document.getElementById('mctestdiv').innerHTML;
+  var actual = content.document.getElementById("mctestdiv").innerHTML;
   is(actual, "Mixed Content Blocker disabled", "OK: Executed mixed script in Test 2C");
 
   // The Script loaded after we disabled the page, now we are going to reload the
   // page and see if our decision is persistent
   BrowserTestUtils.browserLoaded(gTestBrowser).then(test2D);
 
   // reload the page using the provided link in the html file
   var mctestlink = content.document.getElementById("mctestlink");
   mctestlink.click();
 }
 
 function test2D() {
   // The Control Center button should appear but isMixedContentBlocked should be NOT true,
   // because our decision of disabling the mixed content blocker is persistent.
   assertMixedContentBlockingState(gTestBrowser, {activeLoaded: true, activeBlocked: false, passiveLoaded: false});
 
-  var actual = content.document.getElementById('mctestdiv').innerHTML;
+  var actual = content.document.getElementById("mctestdiv").innerHTML;
   is(actual, "Mixed Content Blocker disabled", "OK: Executed mixed script in Test 2D");
 
   // move on to Test 3
   test3();
 }
 
 // ------------------------ Test 3 ------------------------------
 

--- a/browser/base/content/test/general/browser_bug906190.js
+++ b/browser/base/content/test/general/browser_bug906190.js
@@ -29,17 +29,17 @@ function* doTest(parentTabSpec, childTab
     });
 
     // Disable the Mixed Content Blocker for the page, which reloads it.
     let promiseReloaded = BrowserTestUtils.browserLoaded(browser);
     gIdentityHandler.disableMixedContentProtection();
     yield promiseReloaded;
 
     // Wait for the script in the page to update the contents of the test div.
-    let testDiv = content.document.getElementById('mctestdiv');
+    let testDiv = content.document.getElementById("mctestdiv");
     yield promiseWaitForCondition(
       () => testDiv.innerHTML == "Mixed Content Blocker disabled");
 
     // Add the link for the child tab to the page.
     let mainDiv = content.document.createElement("div");
     mainDiv.innerHTML =
       '<p><a id="linkToOpenInNewTab" href="' + childTabSpec + '">Link</a></p>';
     content.document.body.appendChild(mainDiv);
@@ -115,17 +115,17 @@ add_task(function* test_same_origin() {
                gHttpTestRoot1 + "file_bug906190_2.html", function* () {
     // The doorhanger should appear but activeBlocked should be >> NOT << true,
     // because our decision of disabling the mixed content blocker is persistent
     // across tabs.
     yield assertMixedContentBlockingState(gBrowser, {
       activeLoaded: true, activeBlocked: false, passiveLoaded: false,
     });
 
-    is(content.document.getElementById('mctestdiv').innerHTML,
+    is(content.document.getElementById("mctestdiv").innerHTML,
        "Mixed Content Blocker disabled", "OK: Executed mixed script");
   });
 });
 
 /**
  * 2. - Load a html page which has mixed content
  *    - Doorhanger to disable protection appears - we disable it
  *    - Load a new page from a different origin in a new tab simulating a click
@@ -136,17 +136,17 @@ add_task(function* test_different_origin
                gHttpTestRoot2 + "file_bug906190_2.html", function* () {
     // The doorhanger should appear and activeBlocked should be >> TRUE <<,
     // because our decision of disabling the mixed content blocker should only
     // persist if pages are from the same domain.
     yield assertMixedContentBlockingState(gBrowser, {
       activeLoaded: false, activeBlocked: true, passiveLoaded: false,
     });
 
-    is(content.document.getElementById('mctestdiv').innerHTML,
+    is(content.document.getElementById("mctestdiv").innerHTML,
        "Mixed Content Blocker enabled", "OK: Blocked mixed script");
   });
 });
 
 /**
  * 3. - Load a html page which has mixed content
  *    - Doorhanger to disable protection appears - we disable it
  *    - Load a new page from the same origin in a new tab simulating a click
@@ -157,17 +157,17 @@ add_task(function* test_same_origin_meta
   // file_bug906190_3_4.html redirects to page test1.example.com/* using meta-refresh
   yield doTest(gHttpTestRoot1 + "file_bug906190_1.html",
                gHttpTestRoot1 + "file_bug906190_3_4.html", function* () {
     // The doorhanger should appear but activeBlocked should be >> NOT << true!
     yield assertMixedContentBlockingState(gBrowser, {
       activeLoaded: true, activeBlocked: false, passiveLoaded: false,
     });
 
-    is(content.document.getElementById('mctestdiv').innerHTML,
+    is(content.document.getElementById("mctestdiv").innerHTML,
        "Mixed Content Blocker disabled", "OK: Executed mixed script");
   }, true);
 });
 
 /**
  * 4. - Load a html page which has mixed content
  *    - Doorhanger to disable protection appears - we disable it
  *    - Load a new page from the same origin in a new tab simulating a click
@@ -177,17 +177,17 @@ add_task(function* test_same_origin_meta
 add_task(function* test_same_origin_metarefresh_different_origin() {
   yield doTest(gHttpTestRoot2 + "file_bug906190_1.html",
                gHttpTestRoot2 + "file_bug906190_3_4.html", function* () {
     // The doorhanger should appear and activeBlocked should be >> TRUE <<.
     yield assertMixedContentBlockingState(gBrowser, {
       activeLoaded: false, activeBlocked: true, passiveLoaded: false,
     });
 
-    is(content.document.getElementById('mctestdiv').innerHTML,
+    is(content.document.getElementById("mctestdiv").innerHTML,
        "Mixed Content Blocker enabled", "OK: Blocked mixed script");
   }, true);
 });
 
 /**
  * 5. - Load a html page which has mixed content
  *    - Doorhanger to disable protection appears - we disable it
  *    - Load a new page from the same origin in a new tab simulating a click
@@ -197,17 +197,17 @@ add_task(function* test_same_origin_302r
   // the sjs files returns a 302 redirect- note, same origins
   yield doTest(gHttpTestRoot1 + "file_bug906190_1.html",
                gHttpTestRoot1 + "file_bug906190.sjs", function* () {
     // The doorhanger should appear but activeBlocked should be >> NOT << true.
     // Currently it is >> TRUE << - see follow up bug 914860
     ok(!gIdentityHandler._identityBox.classList.contains("mixedActiveBlocked"),
        "OK: Mixed Content is NOT being blocked");
 
-    is(content.document.getElementById('mctestdiv').innerHTML,
+    is(content.document.getElementById("mctestdiv").innerHTML,
        "Mixed Content Blocker disabled", "OK: Executed mixed script");
   });
 });
 
 /**
  * 6. - Load a html page which has mixed content
  *    - Doorhanger to disable protection appears - we disable it
  *    - Load a new page from the same origin in a new tab simulating a click
@@ -217,17 +217,17 @@ add_task(function* test_same_origin_302r
   // the sjs files returns a 302 redirect - note, different origins
   yield doTest(gHttpTestRoot2 + "file_bug906190_1.html",
                gHttpTestRoot2 + "file_bug906190.sjs", function* () {
     // The doorhanger should appear and activeBlocked should be >> TRUE <<.
     yield assertMixedContentBlockingState(gBrowser, {
       activeLoaded: false, activeBlocked: true, passiveLoaded: false,
     });
 
-    is(content.document.getElementById('mctestdiv').innerHTML,
+    is(content.document.getElementById("mctestdiv").innerHTML,
        "Mixed Content Blocker enabled", "OK: Blocked mixed script");
   });
 });
 
 /**
  * 7. - Test memory leak issue on redirection error. See Bug 1269426.
  */
 add_task(function* test_bad_redirection() {