diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug587990.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug587990.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  let newTab;
+
+  let onLoad = function (win) {
+    registerCleanupFunction(function () win.close());
+
+    newTab = win.gBrowser.addTab();
+
+    let popup = win.document.getElementById("context_tabViewMenuPopup");
+    win.TabView.updateContextMenu(newTab, popup);
+  };
+
+  let onShow = function (win) {
+    let cw = win.TabView.getContentWindow();
+    is(cw.GroupItems.groupItems.length, 1, "Has only one group");
+
+    let groupItem = cw.GroupItems.groupItems[0];
+    let tabItems = groupItem.getChildren();
+
+    let tab = tabItems[tabItems.length - 1].tab;
+    is(tab, newTab, "The new tab exists in the group");
+
+    finish();
+  };
+
+  waitForExplicitFinish();
+  newWindowWithTabView(onShow, onLoad);
+}