diff --git a/accessible/tests/mochitest/focus/test_takeFocus.html b/accessible/tests/mochitest/focus/test_takeFocus.html
index 186d9ec1fcc0..23938c819b79 100644
--- a/accessible/tests/mochitest/focus/test_takeFocus.html
+++ b/accessible/tests/mochitest/focus/test_takeFocus.html
@@ -71,6 +71,7 @@
     }
 
     SimpleTest.waitForExplicitFinish();
+    setTestPluginEnabledState(SpecialPowers.Ci.nsIPluginTag.STATE_ENABLED);
     addA11yLoadEvent(waitForPlugin);
   </script>
 </head>