If you want a more up-to-date version of Thunderbird on Ubuntu, I highly recommend using the thunderbird-stable PPA:
https://launchpad.net/~mozillateam/+archive/thunderbird-stable -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/689453 Title: thunderbird uses 100% CPU and doesn't terminate if quit during connection To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/689453/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs