diff -r 000000000000 -r 6474c204b198 browser/components/tabview/test/browser_tabview_bug595436.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/components/tabview/test/browser_tabview_bug595436.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,54 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function test() {
+  let cw, search, searchButton;
+
+  let assertSearchIsEnabled = function () {
+    isnot(search.style.display, "none", "search is enabled");
+  }
+
+  let assertSearchIsDisabled = function () {
+    is(search.style.display, "none", "search is disabled");
+  }
+
+  let testSearchInitiatedByKeyPress = function () {
+    EventUtils.synthesizeKey("a", {}, cw);
+    assertSearchIsEnabled();
+
+    EventUtils.synthesizeKey("VK_BACK_SPACE", {}, cw);
+    assertSearchIsDisabled();
+  }
+
+  let testSearchInitiatedByMouseClick = function () {
+    EventUtils.sendMouseEvent({type: "mousedown"}, searchButton, cw);
+    assertSearchIsEnabled();
+
+    EventUtils.synthesizeKey("a", {}, cw);
+    EventUtils.synthesizeKey("VK_BACK_SPACE", {}, cw);
+    EventUtils.synthesizeKey("VK_BACK_SPACE", {}, cw);
+    assertSearchIsEnabled();
+
+    EventUtils.synthesizeKey("VK_ESCAPE", {}, cw);
+    assertSearchIsDisabled();
+  }
+
+  waitForExplicitFinish();
+
+  newWindowWithTabView(function (win) {
+    registerCleanupFunction(function () win.close());
+
+    cw = win.TabView.getContentWindow();
+    search = cw.document.getElementById("search");
+    searchButton = cw.document.getElementById("searchbutton");
+
+    SimpleTest.waitForFocus(function () {
+      assertSearchIsDisabled();
+
+      testSearchInitiatedByKeyPress();
+      testSearchInitiatedByMouseClick();
+
+      finish();
+    }, cw);
+  });
+}