This update was required as Thunderbird 3.1.x has now reached end of life. Thunderbird 12 will be coming soon. I'm wondering if you have incompatible extensions. Please start thunderbird in safe mode (thunderbird -safe-mode) and disable any extensions you might have. Then restart normally. You can try reenabling the extensions one by one until you find the incompatible one. You also might want to update your addons to the latest versions on addons.mozilla.org
** Changed in: thunderbird (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/990331 Title: Big Thunderbird problems after Ubuntu bugfix update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/990331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs