I couldn't find an upstream bug report specifically addressing the progress bars and CPU usage, so I created one:
https://bugzilla.mozilla.org/show_bug.cgi?id=562977 ** Changed in: thunderbird (Ubuntu) Status: Incomplete => Confirmed -- Thunderbird: high CPU usage from progress bars https://bugs.launchpad.net/bugs/109943 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
