diff -r 000000000000 -r 6474c204b198 toolkit/components/startup/nsUserInfoMac.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/startup/nsUserInfoMac.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+#ifndef __nsUserInfoMac_h
+#define __nsUserInfoMac_h
+
+#include "nsIUserInfo.h"
+#include "nsReadableUtils.h"
+
+class nsUserInfo: public nsIUserInfo
+{
+public:
+  nsUserInfo();
+  virtual ~nsUserInfo() {}
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIUSERINFO
+  
+  nsresult GetPrimaryEmailAddress(nsCString &aEmailAddress);  
+};
+
+#endif /* __nsUserInfo_h */