diff -r 000000000000 -r 6474c204b198 browser/base/content/test/newtab/browser_newtab_bug721442.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/base/content/test/newtab/browser_newtab_bug721442.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function runTests() {
+  yield setLinks("0,1,2,3,4,5,6,7,8");
+  setPinnedLinks([
+    {url: "http://example.com/#7", title: ""},
+    {url: "http://example.com/#8", title: "title"},
+    {url: "http://example.com/#9", title: "http://example.com/#9"}
+  ]);
+
+  yield addNewTabPageTab();
+  checkGrid("7p,8p,9p,0,1,2,3,4,5");
+
+  checkTooltip(0, "http://example.com/#7", "1st tooltip is correct");
+  checkTooltip(1, "title\nhttp://example.com/#8", "2nd tooltip is correct");
+  checkTooltip(2, "http://example.com/#9", "3rd tooltip is correct");
+}
+
+function checkTooltip(aIndex, aExpected, aMessage) {
+  let link = getCell(aIndex).node.querySelector(".newtab-link");
+  is(link.getAttribute("title"), aExpected, aMessage);
+}