diff --git a/browser/base/content/test/Makefile.in b/browser/base/content/test/Makefile.in
index e826ffb244a..1dc05eaed6d 100644
--- a/browser/base/content/test/Makefile.in
+++ b/browser/base/content/test/Makefile.in
@@ -183,6 +183,7 @@ MOCHITEST_BROWSER_FILES = \
                  browser_bug822367.js \
                  browser_bug832435.js \
                  browser_bug839103.js \
+                 browser_bug882977.js \
                  browser_canonizeURL.js \
                  browser_clearplugindata_noage.html \
                  browser_clearplugindata.html \
diff --git a/browser/base/content/test/browser_bug882977.js b/browser/base/content/test/browser_bug882977.js
new file mode 100644
index 00000000000..abbdc84d135
--- /dev/null
+++ b/browser/base/content/test/browser_bug882977.js
@@ -0,0 +1,40 @@
+/* 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, "unknownIdentity", "Identity should be chromeUI but is currently " +
+                                      "shown as unknownIdentity for new windows.");
+  finish();
+}