diff -r 000000000000 -r 6474c204b198 browser/base/content/test/general/browser_bug882977.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/base/content/test/general/browser_bug882977.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+function test() {
+  waitForExplicitFinish();
+
+  registerCleanupFunction(function() {
+    Services.prefs.clearUserPref("browser.startup.homepage");
+    Services.prefs.clearUserPref("browser.startup.page");
+    win.close();
+  });
+
+  let homepage = "about:home";
+  Services.prefs.setCharPref("browser.startup.homepage", homepage);
+  Services.prefs.setIntPref("browser.startup.page", 1);
+  let win = OpenBrowserWindow();
+  whenDelayedStartupFinished(win, function() {
+    let browser = win.gBrowser.selectedBrowser;
+    if (browser.contentDocument.readyState == "complete" &&
+        browser.currentURI.spec == homepage) {
+      checkIdentityMode(win);
+      return;
+    }
+
+    browser.addEventListener("load", function onLoad() {
+      if (browser.currentURI.spec != homepage)
+        return;
+      browser.removeEventListener("load", onLoad, true);
+      checkIdentityMode(win);
+    }, true);
+  });
+}
+
+function checkIdentityMode(win) {
+  let identityMode = win.document.getElementById("identity-box").className;
+  is(identityMode, "chromeUI", "Identity state should be chromeUI for about:home in a new window");
+  finish();
+}