Updated to work with jrgm's winopen stuff

tools/performance/startup/miniNav.xul

@@ -3,9 +3,13 @@
 <!DOCTYPE window>
 
 <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+        onload="
+               dump( 'miniXul window.arguments[0]=' + window.arguments[0] + '\n' );
+               if ( window.arguments[0] ) browser.loadURI( window.arguments[0] );
+               "
         title="Minimal Navigator">
     <browser id="content" 
              type="content-primary"
              style="-moz-binding:none;"
-             src="chrome://navigator/content/quit.html"/>
+             src="about:blank"/>
 </window>