Reverting my previous changes, as they have no effect on tinderbox leak stats.

suite/browser/navigator.js

@@ -325,11 +325,9 @@ function Startup()
     
 		// give urlbar focus so it'll be an active editor and d&d will work properly
 		var url_bar = document.getElementById("urlbar");
-        /*
 		if ( url_bar )
       url_bar.focus();
-        */
-
+    
     tryToSetContentWindow();
 	
     // Add a capturing event listener to the content area