diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug716880.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug716880.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,92 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+let contentWindow;
+let pinnedTab;
+
+function test() {
+  waitForExplicitFinish();
+
+  registerCleanupFunction(function() {
+    while (gBrowser.tabs[1])
+      gBrowser.removeTab(gBrowser.tabs[1]);
+    hideTabView();
+  });
+
+  pinnedTab = gBrowser.addTab("about:blank");
+  gBrowser.pinTab(pinnedTab);
+  ok(pinnedTab.pinned, "Tab 1 is pinned");
+
+  gBrowser.addTab("about:mozilla");
+  showTabView(setup);
+}
+
+function setup() {
+  let prefix = "setup: ";
+  
+  registerCleanupFunction(function() {
+    let groupItem = contentWindow.GroupItems.groupItem(groupItemTwoId);
+    if (groupItem)
+      closeGroupItem(groupItem);
+  });
+
+  contentWindow = TabView.getContentWindow();
+  let groupItemOne = contentWindow.GroupItems.groupItems[0];
+
+  is(contentWindow.GroupItems.groupItems.length, 1,
+    prefix + "There is only one group");
+
+  is(groupItemOne.getChildren().length, 2,
+    prefix + "The number of tabs in group one is 2");
+
+  // Create a second group with a dummy page.
+  let groupItemTwo =
+    createGroupItemWithTabs(window, 300, 300, 310, ["about:blank"]);
+  let groupItemTwoId = groupItemTwo.id;
+
+  // Add a new tab to the second group, from where we will execute the switch
+  // to tab.
+  groupItemTwo.newTab("about:blank");
+
+  is(contentWindow.GroupItems.getActiveGroupItem(), groupItemTwo, 
+     prefix + "The group two is the active group");
+  
+  is(contentWindow.UI.getActiveTab(), groupItemTwo.getChild(1), 
+     prefix + "The second tab item in group two is active");
+
+  hideTabView(function () { switchToURL(groupItemOne, groupItemTwo) } );
+}
+
+
+function switchToURL(groupItemOne, groupItemTwo) {
+  let prefix = "after switching: ";
+
+  /**
+   * At this point, focus is on group two. Let's switch to a tab with an URL
+   * contained in group one and then go to the pinned tab after the
+   * switch. The selected group should be group one.
+   */
+  // Set the urlbar to include the moz-action.
+  gURLBar.value = "moz-action:switchtab,about:mozilla";
+  // Focus the urlbar so we can press enter.
+  gURLBar.focus();
+  // Press enter.
+  EventUtils.synthesizeKey("VK_RETURN", {});
+
+  // Focus on the app tab.
+  EventUtils.synthesizeKey("1", { accelKey: true });
+
+  // Check group one is active after a "switch to tab" action was executed and 
+  // the app tab receives focus.
+  is(contentWindow.GroupItems.getActiveGroupItem(), groupItemOne, 
+    prefix + "The group one is the active group");
+
+  is(groupItemOne.getChildren().length, 2,
+    prefix + "The number of tabs in group one is 2");
+
+  is(groupItemTwo.getChildren().length, 1,
+    prefix + "The number of tabs in group two is 1");
+
+  gBrowser.removeTab(pinnedTab);
+  finish();
+}
\ No newline at end of file