diff -r 000000000000 -r 6474c204b198 browser/config/mozconfigs/win32/debug
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/config/mozconfigs/win32/debug	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,26 @@
+. "$topsrcdir/build/mozconfig.win-common"
+MOZ_AUTOMATION_L10N_CHECK=0
+. "$topsrcdir/browser/config/mozconfigs/common"
+
+ac_add_options --enable-debug
+ac_add_options --enable-trace-malloc
+ac_add_options --enable-signmar
+
+# Needed to enable breakpad in application.ini
+export MOZILLA_OFFICIAL=1
+
+if test "$PROCESSOR_ARCHITECTURE" = "AMD64" -o "$PROCESSOR_ARCHITEW6432" = "AMD64"; then
+  . $topsrcdir/build/win32/mozconfig.vs2010-win64
+else
+  . $topsrcdir/build/win32/mozconfig.vs2010
+fi
+
+# Treat warnings as errors in directories with FAIL_ON_WARNINGS.
+ac_add_options --enable-warnings-as-errors
+
+# Package js shell.
+export MOZ_PACKAGE_JSSHELL=1
+
+. "$topsrcdir/build/mozconfig.cache"
+
+. "$topsrcdir/build/mozconfig.common.override"