--- comm-1.9.1/mail/app/profile/all-thunderbird.js	2009-12-05 02:53:47.000000000 +0100
+++ comm-1.9.1-magellan/mail/app/profile/all-thunderbird.js	2009-12-23 00:01:59.000000000 +0100
@@ -517,3 +517,7 @@
 pref("browser.link.open_newwindow.restriction", 0);
 
 pref("browser.tabs.loadDivertedInBackground", false);
+
+// Use LANG environment variable to choose locale
+pref("intl.locale.matchOS", true);
+