diff --git a/accessible/tests/mochitest/relations/test_embeds.xul b/accessible/tests/mochitest/relations/test_embeds.xul
index 5d0ddcfa9990..ec6c5f5bd508 100644
--- a/accessible/tests/mochitest/relations/test_embeds.xul
+++ b/accessible/tests/mochitest/relations/test_embeds.xul
@@ -21,27 +21,11 @@
           src="../events.js"></script>
   <script type="application/javascript"
           src="../relations.js"></script>
+  <script type="application/javascript"
+          src="../browser.js"></script>
 
   <script type="application/javascript">
   <![CDATA[
-    ////////////////////////////////////////////////////////////////////////////
-    // Helpers
-
-    function tabBrowser()
-    {
-      return gBrowserWnd.gBrowser;
-    }
-
-    function currentBrowser()
-    {
-      return tabBrowser().selectedBrowser;
-    }
-
-    function currentTabDocument()
-    {
-      return currentBrowser().contentDocument;
-    }
-
     ////////////////////////////////////////////////////////////////////////////
     // Invokers
 
@@ -58,7 +42,7 @@
 
       this.finalCheck = function loadURI_finalCheck()
       {
-        testRelation(gBrowserWnd.document, RELATION_EMBEDS,
+        testRelation(browserDocument(), RELATION_EMBEDS,
                      getAccessible(currentTabDocument()));
       }
 
@@ -81,7 +65,7 @@
 
       this.finalCheck = function loadURI_finalCheck()
       {
-        testRelation(gBrowserWnd.document, RELATION_EMBEDS,
+        testRelation(browserDocument(), RELATION_EMBEDS,
                      getAccessible(currentTabDocument()));
       }
 
@@ -94,28 +78,12 @@
     ////////////////////////////////////////////////////////////////////////////
     // Testing
 
-    var gBrowserWnd = null;
-    function loadBrowser()
-    {
-      gBrowserWnd = window.openDialog("chrome://browser/content/", "_blank",
-                                      "chrome,all,dialog=no", "about:");
-
-      addA11yLoadEvent(startTests, gBrowserWnd);
-    }
-
-    function startTests()
-    {
-      // Wait for tab load.
-      var browser = currentBrowser();
-      addA11yLoadEvent(doTests, browser.contentWindow);
-    }
-
     //gA11yEventDumpToConsole = true; // debug
 
     var gQueue = null;
     function doTests()
     {
-      testRelation(gBrowserWnd.document, RELATION_EMBEDS,
+      testRelation(browserDocument(), RELATION_EMBEDS,
                    getAccessible(currentTabDocument()));
 
       gQueue = new eventQueue();
@@ -125,13 +93,13 @@
 
       gQueue.onFinish = function()
       {
-        gBrowserWnd.close();
+        closeBrowserWindow();
       }
       gQueue.invoke();
     }
 
     SimpleTest.waitForExplicitFinish();
-    addLoadEvent(loadBrowser);
+    openBrowserWindow(doTests, "about:");
   ]]>
   </script>