Looks like it was probably indexing, as reported here: https://getsatisfaction.com/mozilla_messaging/topics/thunderbird_indexing_hogs_the_cpu
CPU load is now normal, and remaind so after re-start, but seems the "Activity Manager" window is volatile so there is no log of what it was originally doing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/984801 Title: Thunderbird 11 has stupidly high idle CPU usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/984801/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
