diff -r 000000000000 -r 6474c204b198 toolkit/components/places/tests/autocomplete/test_empty_search.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/places/tests/autocomplete/test_empty_search.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,63 @@
+/* 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/. */
+
+/**
+ * Test for bug 426864 that makes sure the empty search (drop down list) only
+ * shows typed pages from history.
+ */
+
+// Define some shared uris and titles (each page needs its own uri)
+let kURIs = [
+  "http://foo/0",
+  "http://foo/1",
+  "http://foo/2",
+  "http://foo/3",
+  "http://foo/4",
+  "http://foo/5",
+];
+let kTitles = [
+  "title",
+];
+
+// Visited (in history)
+addPageBook(0, 0); // history
+addPageBook(1, 0, 0); // bookmark
+addPageBook(2, 0); // history typed
+addPageBook(3, 0, 0); // bookmark typed
+
+// Unvisited bookmark
+addPageBook(4, 0, 0); // bookmark
+addPageBook(5, 0, 0); // bookmark typed
+
+// Set some pages as typed
+markTyped([2,3,5], 0);
+// Remove pages from history to treat them as unvisited
+removePages([4,5]);
+
+// Provide for each test: description; search terms; array of gPages indices of
+// pages that should match; optional function to be run before the test
+let gTests = [
+  ["0: Match everything",
+   "foo", [0,1,2,3,4,5]],
+  ["1: Match only typed history",
+   "foo ^ ~", [2,3]],
+  ["2: Drop-down empty search matches only typed history",
+   "", [2,3]],
+  ["3: Drop-down empty search matches everything",
+   "", [0,1,2,3,4,5], function () setEmptyPref(0)],
+  ["4: Drop-down empty search matches only typed",
+   "", [2,3,5], function () setEmptyPref(32)],
+  ["5: Drop-down empty search matches only typed history",
+   "", [2,3], clearEmptyPref],
+];
+
+function setEmptyPref(aValue)
+  prefs.setIntPref("browser.urlbar.default.behavior.emptyRestriction", aValue);
+
+function clearEmptyPref()
+{
+  if (prefs.prefHasUserValue("browser.urlbar.default.behavior.emptyRestriction"))
+    prefs.clearUserPref("browser.urlbar.default.behavior.emptyRestriction");
+}
+