Merike, on what OS did you profile?
Note, from bug 781535 comment 24 (In reply to n...@parkwaycc.co.uk from comment #22) > Bug 658829 changed the way undetermined progress meters were painted on > Windows from an XBL implementation to a native implementation. Linux still > uses the XBL implementation for undetermined progress meters though. The linux side is bug 854093 - Indeterminate progress bar takes entire CPU - in Widget: Gtk -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/109943 Title: Thunderbird: high CPU usage from progress bars To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/109943/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs