diff --git a/dom/ipc/TabChild.cpp b/dom/ipc/TabChild.cpp
index a5c32897a98a..da5c012fb42c 100644
--- a/dom/ipc/TabChild.cpp
+++ b/dom/ipc/TabChild.cpp
@@ -356,7 +356,6 @@ TabChild::ProvideWindow(nsIDOMWindow* aParent, PRUint32 aChromeFlags,
         return NS_ERROR_NOT_AVAILABLE;
     }
 
-    *aWindowIsNew = PR_TRUE;
     nsCOMPtr<nsIDOMWindow> win =
         do_GetInterface(static_cast<TabChild*>(newChild)->mWebNav);
     win.forget(aReturn);
diff --git a/dom/tests/mochitest/bugs/Makefile.in b/dom/tests/mochitest/bugs/Makefile.in
index 0daa91d1f5f1..49e610de5192 100644
--- a/dom/tests/mochitest/bugs/Makefile.in
+++ b/dom/tests/mochitest/bugs/Makefile.in
@@ -137,7 +137,6 @@ _TEST_FILES	= \
 		test_bug622361.html \
 		test_bug633133.html \
 		test_bug642026.html \
-		test_bug648465.html \
 		$(NULL)
 
 libs:: 	$(_TEST_FILES)
diff --git a/dom/tests/mochitest/bugs/test_bug648465.html b/dom/tests/mochitest/bugs/test_bug648465.html
deleted file mode 100644
index 15aba0d4e7c3..000000000000
--- a/dom/tests/mochitest/bugs/test_bug648465.html
+++ /dev/null
@@ -1,34 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=648465
--->
-<head>
-  <title>Test for Bug 648465</title>
-  <script type="text/javascript" src="/MochiKit/packed.js"></script>
-  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
-</head>
-<body>
-<a target="_blank"
-  href="https://bugzilla.mozilla.org/show_bug.cgi?id=648465">
-  Mozilla Bug 648465</a>
-<p id="display"></p>
-<div id="content" style="display: none">
-  
-</div>
-<pre id="test">
-<script class="testbody" type="text/javascript">
-
-/** Test for Bug 648465 **/
-var w = window.open('about:blank');
-try {
-  is(w.fullScreen, false, "can access non-allAccess properties of w");
-} finally {
-  w.close();
-}
-
-</script>
-</pre>
-</body>
-</html>
