diff -r 000000000000 -r 6474c204b198 build/mozconfig.common
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/mozconfig.common	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+# 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/.
+
+# Common mozconfig for official builds.
+#
+# Add options to this file that will be inherited by all in-tree mozconfigs.
+# This is useful for eg try builds with nondefault options that apply to all
+# architectures, though note that if you want to override options set in
+# another mozconfig file, you'll need to use mozconfig.common.override instead
+# of this file.
+
+mk_add_options AUTOCLOBBER=1
+
+ac_add_options --enable-crashreporter
+
+ac_add_options --enable-release
+
+. "$topsrcdir/build/mozconfig.automation"