(In reply to Niklas Hambüchen from comment #65) > I have already tested that. > > * Only throbber: ~15-20% CPU usage > * Only progress bar: ~15-20% CPU usage > * Both throbber and progress bar: ~15-20% CPU usage > * Both disabled: no CPU usage
Strange that both together use the same CPU like when only one is active. Please could you try ``` .tab-throbber[busy] { list-style-image: none !important; } ``` Then I can see if the animated PNG is the cause of the CPU usage. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/109943 Title: Thunderbird: high CPU usage from progress bars Status in Mozilla Thunderbird: Confirmed Status in thunderbird package in Ubuntu: Confirmed Bug description: Binary package hint: mozilla-thunderbird When sending a simple and short email with Thunderbird via SMTP the CPU is used intensively. This seems not to be necessary. If the sending failed and an corresponding error message dialog appears, the CPU is still being used. When pressing ok to close the error dialog the CPU is fine. This suggests it might be related specifically to the progress bar. Such behavior is especially annoying on a laptop where you can hear the CPU usage because of a starting fan. To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/109943/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp