disable acceptable ads from first run page

lib/appSupport.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2014 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /**
  * @fileOverview Various application-specific functions.
  */
 
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/AddonManager.jsm");
 
 /**
  * Checks whether an application window is known and should get Adblock Plus
  * user interface elements.
  * @result Boolean
  */
 exports.isKnownWindow = function isKnownWindow(/**Window*/ window) false;
 
 /**
  * HACK: In some applications the window finishes initialization during load
@@ skipping 888 matching lines @@
       let window = UI.currentWindow;
       if (!window)
         return
       
       let browser = exports.addTab(window, "about:addons").browser;
       browser.addEventListener("load", function openAddonPrefs(event) 
       {
         browser.removeEventListener("load", openAddonPrefs, true);
         Utils.runAsync(function()
         {
-          let event = new Event("Event");
-          event.initEvent("popstate", true, false);
-          event.state = {id: require("info").addonID};
-          browser._contentWindow.dispatchEvent(event);
+          // The page won't be ready until the add-on manager data is loaded so we call this method
+          // to know when the data will be ready.
+          AddonManager.getAddonsByTypes(["extension", "theme", "locale"], function()
+          {
+            let event = new Event("Event");
+            event.initEvent("popstate", true, false);
+            event.state = {id: require("info").addonID};
+            browser._contentWindow.dispatchEvent(event);
+          });
         });
       }, true);
     };
 
     break;
   }
 }