use preference for browser chrome url (aka navigator.xul). bug 31867

suite/common/history/history.js

@@ -92,6 +92,6 @@ function OpenURL(event, node)
 	}
 
    // window.open(url,'history');
-    window.openDialog( "chrome://navigator/content/navigator.xul", "_blank", "chrome,all,dialog=no", url ); // get right sized window
+    window.openDialog( getBrowserURL(), "_blank", "chrome,all,dialog=no", url ); // get right sized window
     return(true);
 }

suite/common/search/search-panel.js

@@ -775,7 +775,7 @@ function sidebarOpenURL(event, treeitem, root)
   if ( window.content )
     window.content.location = id;
   else {
-    window.openDialog( "chrome://navigator/content/navigator.xul", "_blank", "chrome,all,dialog=no", id );
+    window.openDialog( getBrowserURL(), "_blank", "chrome,all,dialog=no", id );
   }
 }