Index: lib/appSupport.js
===================================================================
--- a/lib/appSupport.js
+++ b/lib/appSupport.js
@@ -21,6 +21,7 @@
 
 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
@@ -916,6 +917,31 @@
       if (Utils.confirm(window, dialogMessage, dialogTitle))
         this.setSubscription(url, title);
     };
+    
+    UI.openFiltersDialog = function()
+    {
+      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()
+        {
+          // 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;
   }