diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug651311.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug651311.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  waitForExplicitFinish();
+
+  let callCount = 0;
+
+  newWindow(function (win) {
+    registerCleanupFunction(function () win.close());
+
+    win.TabView._initFrame(function () {
+      is(callCount++, 0, "call count is zero");
+      ok(win.TabView.getContentWindow().UI, "content window is loaded");
+    });
+
+    win.TabView._initFrame(function () {
+      is(callCount++, 1, "call count is one");
+      ok(win.TabView.getContentWindow().UI, "content window is loaded");
+    });
+
+    win.TabView._initFrame(function () {
+      is(callCount, 2, "call count is two");
+      ok(win.TabView.getContentWindow().UI, "content window is loaded");
+      finish();
+    });
+  });
+}
+
+function newWindow(callback) {
+  let opts = "chrome,all,dialog=no,height=800,width=800";
+  let win = window.openDialog(getBrowserURL(), "_blank", opts, "about:blank");
+  whenDelayedStartupFinished(win, () => callback(win));
+}