--- a/dom/base/test/test_bug1043106.html
+++ b/dom/base/test/test_bug1043106.html
@@ -13,16 +13,17 @@ https://bugzilla.mozilla.org/show_bug.cg
   <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1043106">Mozilla Bug 1043106</a>
   <iframe id="iframe"></iframe>
   <script type="application/javascript">
 
 var storage;
 
 window.addEventListener("storage", function (event) {
   ok(event.storageArea, storage, "The storageArea is correct");
+  storage.removeItem("a");
   runTests();
 }, false);
 
 var tests = [ { key: 'localStorage', storage: localStorage },
               { key: 'sessionStorage', storage: sessionStorage } ];
 function runTests() {
   if (!tests.length) {
     SimpleTest.finish();