--- comm-1.9.1/mail/app/profile/all-thunderbird.js	2009-12-05 02:53:47.000000000 +0100
+++ comm-1.9.1/mail/app/profile/all-thunderbird.js-gil	2009-12-20 21:53:05.000000000 +0100
@@ -45,7 +45,8 @@
 
 pref("general.useragent.extra.thunderbird", "@APP_UA_NAME@/@APP_VERSION@");
 
-pref("general.useragent.locale", "@AB_CD@");
+pref("intl.locale.matchOS", true);
+pref("general.useragent.locale", "chrome://global/locale/intl.properties");
 pref("general.skins.selectedSkin", "classic/1.0");
 
 #ifdef XP_MACOSX