The Tor Browser / file revision

 /* 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/. */

 function test() {

   // Create a new tab and load about:addons

   let blanktab = gBrowser.addTab();

   gBrowser.selectedTab = blanktab;

   BrowserOpenAddonsMgr();

   is(blanktab, gBrowser.selectedTab, "Current tab should be blank tab");

   // Verify that about:addons loads

   waitForExplicitFinish();

   gBrowser.selectedBrowser.addEventListener("load", function() {

     gBrowser.selectedBrowser.removeEventListener("load", arguments.callee, true);

     let browser = blanktab.linkedBrowser;

     is(browser.currentURI.spec, "about:addons", "about:addons should load into blank tab.");

     gBrowser.removeTab(blanktab);

     finish();

   }, true);

 }