diff -r 000000000000 -r 6474c204b198 browser/metro/base/tests/mochitest/browser_flyouts.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/metro/base/tests/mochitest/browser_flyouts.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+// -*- Mode: js2; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+gTests.push({
+  desc: "about flyout hides navbar, clears navbar selection, doesn't leak",
+  run: function() {
+    yield showNavBar();
+
+    let edit = document.getElementById("urlbar-edit");
+    edit.value = "http://www.wikipedia.org/";
+
+    sendElementTap(window, edit);
+
+    yield waitForCondition(function () {
+      return SelectionHelperUI.isSelectionUIVisible;
+    });
+    ok(ContextUI.navbarVisible, "nav bar visible");
+
+    let promise = waitForEvent(FlyoutPanelsUI.AboutFlyoutPanel._topmostElement, "transitionend");
+    FlyoutPanelsUI.show('AboutFlyoutPanel');
+    yield promise;
+
+    yield waitForCondition(function () {
+      return !SelectionHelperUI.isSelectionUIVisible;
+    });
+    ok(!ContextUI.navbarVisible, "nav bar hidden");
+
+    promise = waitForEvent(FlyoutPanelsUI.AboutFlyoutPanel._topmostElement, "transitionend");
+    FlyoutPanelsUI.hide('AboutFlyoutPanel');
+    yield promise;
+  }
+});
+
+function test() {
+  if (!isLandscapeMode()) {
+    todo(false, "browser_selection_tests need landscape mode to run.");
+    return;
+  }
+  runTests();
+}