I believe automatically switching to offline mode is a bad idea in general and that's what's causing problems such as this.
If "offline" means don't try to resolve anything nor use any sockets, then switching on offline mode should only be done by a more active decision from a user (or script or whatever). This is related to bug 939318 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/207456 Title: refuses to connect to localhost http server when in offline mode To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/207456/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs