--- a/suite/browser/test/browser/browser_bug462289.js
+++ b/suite/browser/test/browser/browser_bug462289.js
@@ -30,16 +30,17 @@ function step3()
 
   EventUtils.synthesizeKey("VK_TAB", { });
   // give tab key a chance to settle
   setTimeout(step3_5, 0);
 }
 
 function step3_5()
 {
+  is(document.activeElement.localName, "tab", "tab key to tab activeElement");
   is(document.activeElement, tab1, "tab key to tab activeElement");
 
   EventUtils.synthesizeMouse(tab1, 9, 9, {});
   setTimeout(step4, 0);
 }
 
 function step4()
 {