Had the exact same issue as comment #11 including log spamming and can confirm that deleting the empty file 'global-messages-db.sqlite-journal' in my Thunderbird account folder resolved the issue.
This was under Ubuntu 12.04 with Thunderbird 14 and encrypted home directory. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/927515 Title: thunderbird uses excessive cpu power To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/927515/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs