diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug650280_perwindowpb.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug650280_perwindowpb.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,75 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  let enableSearch = function (aCW, aCallback) {
+    if (aCW.Search.isEnabled()) {
+       aCallback();
+      return;
+    }
+
+    aCW.addEventListener("tabviewsearchenabled", function onSearchEnabled() {
+      aCW.removeEventListener("tabviewsearchenabled", onSearchEnabled, false);
+      executeSoon(aCallback);
+    }, false);
+
+    aCW.Search.ensureShown();
+  };
+
+  let getSearchboxValue = function (aCW) {
+    return aCW.iQ("#searchbox").val();
+  };
+
+  let prepareSearchbox = function (aCW, aCallback) {
+    ok(!aCW.Search.isEnabled(), "search is disabled");
+
+    executeSoon(function() {
+      enableSearch(aCW, function() {
+        aCW.iQ("#searchbox").val("moz");
+        aCallback();
+      });
+    });
+  };
+
+  let searchAndSwitchPBMode = function (aWindow, aCallback) {
+    showTabView(function() {
+      let cw = aWindow.TabView.getContentWindow();
+
+      prepareSearchbox(cw, function() {
+        testOnWindow(!PrivateBrowsingUtils.isWindowPrivate(aWindow), function(win) {
+          showTabView(function() {
+            let contentWindow = win.TabView.getContentWindow();
+            ok(!contentWindow.Search.isEnabled(), "search is disabled");
+            is(getSearchboxValue(contentWindow), "", "search box is empty");
+            aWindow.TabView.hide();
+            win.close();
+            hideTabView(function() {
+              aWindow.close();
+              aCallback();
+            }, aWindow);
+          }, win);
+        });
+      });
+    }, 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(win) {
+    searchAndSwitchPBMode(win, function() {
+      testOnWindow(true, function(win) {
+        searchAndSwitchPBMode(win, function() {
+          finish();
+        });
+      });
+    });
+  });
+}