diff -r 000000000000 -r 6474c204b198 browser/base/content/test/general/browser_bug563588.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/base/content/test/general/browser_bug563588.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,30 @@
+function press(key, expectedPos) {
+  var originalSelectedTab = gBrowser.selectedTab;
+  EventUtils.synthesizeKey("VK_" + key.toUpperCase(), { accelKey: true });
+  is(gBrowser.selectedTab, originalSelectedTab,
+     "accel+" + key + " doesn't change which tab is selected");
+  is(gBrowser.tabContainer.selectedIndex, expectedPos,
+     "accel+" + key + " moves the tab to the expected position");
+  is(document.activeElement, gBrowser.selectedTab,
+     "accel+" + key + " leaves the selected tab focused");
+}
+
+function test() {
+  gBrowser.addTab();
+  gBrowser.addTab();
+  is(gBrowser.tabs.length, 3, "got three tabs");
+  is(gBrowser.tabs[0], gBrowser.selectedTab, "first tab is selected");
+
+  gBrowser.selectedTab.focus();
+  is(document.activeElement, gBrowser.selectedTab, "selected tab is focused");
+
+  press("right", 1);
+  press("down", 2);
+  press("left", 1);
+  press("up", 0);
+  press("end", 2);
+  press("home", 0);
+
+  gBrowser.removeCurrentTab();
+  gBrowser.removeCurrentTab();
+}