diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug608158.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug608158.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,28 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  waitForExplicitFinish();
+  newWindowWithTabView(onTabViewWindowLoaded);
+}
+
+function onTabViewWindowLoaded(win) {
+  let contentWindow = win.TabView.getContentWindow();
+
+  is(contentWindow.GroupItems.groupItems.length, 1, 
+     "There is one group item on startup");
+  is(win.gBrowser.tabs.length, 1, "There is one tab on startup");
+  let groupItem = contentWindow.GroupItems.groupItems[0];
+
+  hideGroupItem(groupItem, function () {
+    hideTabView(() => {
+      is(contentWindow.GroupItems.groupItems.length, 1, 
+         "There is still one group item");
+      isnot(groupItem, contentWindow.GroupItems.groupItems[0], 
+            "The initial group item is not the same as the final group item");
+      is(win.gBrowser.tabs.length, 1, "There is only one tab");
+      ok(!win.TabView.isVisible(), "Tab View is hidden");
+      promiseWindowClosed(win).then(finish);
+    }, win);
+  });
+}