Ubuntu
thunderbird package

  1. Bug #1959747
  2. Comment #30

Comment 30 for bug 1959747

Revision history for this message
UlfZibis (ulf-zibis) wrote (last edit ): Re: [upstream] Very high CPU and slow responsiveness in Thunderbird 91

I'm having similar problems in 1:91.10.0+build1-0ubuntu0.20.04.1 with Thunderbird's CPU usage well over 25 % and for long periods and additionally causing root process Xorg to consume 15 % CPU.

See also: https://bugzilla.mozilla.org/show_bug.cgi?id=1772673

A workaround for me is:
  gfx.webrender.force-disabled = true

Because of this bug: https://launchpad.net/bugs/1950044
I have installed this PPA: https://launchpad.net/~savoury1/+archive/ubuntu/display?field.series_filter=focal
Maybe, this is the source for the current problem.