diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug624727_perwindowpb.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug624727_perwindowpb.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,143 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  let createGroupItem = function (aWindow) {
+    let cw = aWindow.TabView.getContentWindow();
+    let bounds = new cw.Rect(20, 20, 400, 200);
+    let groupItem = new cw.GroupItem([], {bounds: bounds, immediately: true});
+    cw.UI.setActive(groupItem);
+
+    let groupItemId = groupItem.id;
+    registerCleanupFunction(function() {
+      let groupItem = cw.GroupItems.groupItem(groupItemId);
+      if (groupItem)
+        groupItem.close();
+    });
+
+    for (let i=0; i<3; i++)
+      aWindow.gBrowser.addTab('about:blank');
+  }
+
+  let assertTabViewIsHidden = function (aWindow, prefix) {
+    ok(!aWindow.TabView.isVisible(), prefix + ': tabview is hidden');
+  }
+
+  let assertNumberOfTabs = function (aWindow, prefix, num) {
+    is(aWindow.gBrowser.tabs.length, num, prefix + ': there are ' + num + ' tabs');
+  }
+
+  let assertNumberOfPinnedTabs = function (aWindow, prefix, num) {
+    is(aWindow.gBrowser._numPinnedTabs, num, prefix + ': there are ' + num + ' pinned tabs');
+  }
+
+  let assertNumberOfGroups = function (aCW, prefix, num) {
+    is(aCW.GroupItems.groupItems.length, num, prefix + ': there are ' + num + ' groups');
+  }
+
+  let assertOneTabInGroup = function (prefix, groupItem) {
+    is(groupItem.getChildren().length, 1, prefix + ': group contains one tab');
+  }
+
+  let assertValidPrerequisites = function (aWindow, prefix) {
+    assertNumberOfTabs(aWindow, prefix, 1);
+    assertNumberOfPinnedTabs(aWindow, prefix, 0);
+    assertTabViewIsHidden(aWindow, prefix);
+  }
+
+  let assertValidSetup = function (aWindow, prefix) {
+    let cw = aWindow.TabView.getContentWindow();
+    assertNumberOfGroups(cw, prefix, 2);
+    assertNumberOfTabs(aWindow, prefix, 4);
+    assertNumberOfPinnedTabs(aWindow, prefix, 2);
+
+    let [group1, group2] = cw.GroupItems.groupItems;
+    assertOneTabInGroup(prefix, group1);
+    assertOneTabInGroup(prefix, group2);
+  }
+
+  let testStateAfterEnteringPB = function (aWindow, aCallback) {
+    let prefix = 'window is private';
+    ok(PrivateBrowsingUtils.isWindowPrivate(aWindow), prefix);
+
+    assertTabViewIsHidden(aWindow, prefix);
+
+    showTabView(function () {
+      let cw = aWindow.TabView.getContentWindow();
+
+      assertNumberOfGroups(cw, prefix, 1);
+      assertNumberOfTabs(aWindow, prefix, 1);
+      assertOneTabInGroup(prefix, cw.GroupItems.groupItems[0]);
+      aCallback();
+    }, aWindow);
+  }
+
+  let testStateAfterLeavingPB = function (aWindow) {
+    let prefix = 'window is not private';
+    ok(!PrivateBrowsingUtils.isWindowPrivate(aWindow), prefix);
+
+    assertTabViewIsHidden(aWindow, prefix);
+
+    showTabView(function () {
+      assertValidSetup(aWindow, prefix);
+      finishTest(aWindow);
+    }, aWindow);
+  }
+
+  let finishTest = function (aWindow) {
+    let cw = aWindow.TabView.getContentWindow();
+
+    // Remove pinned tabs
+    aWindow.gBrowser.removeTab(aWindow.gBrowser.tabs[0]);
+    aWindow.gBrowser.removeTab(aWindow.gBrowser.tabs[0]);
+
+    cw.GroupItems.groupItems[1].closeAll();
+
+    hideTabView(function () {
+      assertValidPrerequisites(aWindow, 'exit');
+      assertNumberOfGroups(cw, 'exit', 1);
+      aWindow.close();
+      finish();
+    }, aWindow);
+  }
+
+  let testOnWindow = function(aIsPrivate, aCallback) {
+    let win = OpenBrowserWindow({private: aIsPrivate});
+    win.addEventListener("load", function onLoad() {
+      win.removeEventListener("load", onLoad, false);
+      executeSoon(function() { aCallback(win) });
+    }, false);
+  }
+
+  waitForExplicitFinish();
+  testOnWindow(false, function(publicWindow) {
+    registerCleanupFunction(function () publicWindow.TabView.hide());
+    assertValidPrerequisites(publicWindow, 'start');
+
+    showTabView(function () {
+      let cw = publicWindow.TabView.getContentWindow();
+      assertNumberOfGroups(cw, 'start', 1);
+      createGroupItem(publicWindow);
+
+      afterAllTabsLoaded(function () {
+        // Setup
+        let groupItems = cw.GroupItems.groupItems;
+        let [tabItem1, tabItem2, ] = groupItems[1].getChildren();
+        publicWindow.gBrowser.pinTab(tabItem1.tab);
+        publicWindow.gBrowser.pinTab(tabItem2.tab);
+
+        assertValidSetup(publicWindow, 'setup');
+        hideTabView(function() {
+          testOnWindow(true, function(privateWindow) {
+            testStateAfterEnteringPB(privateWindow, function() {
+              privateWindow.close();
+              hideTabView(function() {
+                testStateAfterLeavingPB(publicWindow);
+              }, publicWindow);
+            });
+          });
+        }, publicWindow);
+      });
+    }, publicWindow);
+  });
+}