The way this works is that intl.accept_languages is set to a localized value which comes from the language pack for your selected locale (and the selected locale comes from the environment), Defaulting to en-us when you uninstall the GB language pack is the expected behaviour regardless of your environment, as you have nothing providing a correctly localized value for intl.accept_languages anymore.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/867753 Title: Accept-Language header contains incorrect value To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/867753/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs