[Bug 1959747]

[Bll-guayam-gj5]

Running on Fedora-35, with KDE, Radeon RX6600, and Thunderbird 91.7.0, I
can confirm that the above suggested fix does *NOT* solve the high-cpu
usage problem.  Even after setting "gfx.webrender.force-disabled" to
"true" (and confirming "gfx.webrender.all" to be "false"), moving the
mouse over either the message list or the folder list results in high
cpu usage and much sluggishness; I can easily move the mouse more than
fast enough to have the "hover highlight" not be able to keep up.

-- 
You received this bug notification because you are a member of Mozilla
Bugs, which is subscribed to Mozilla Thunderbird.
https://bugs.launchpad.net/bugs/1959747

Title:
  [upstream] Very high CPU and slow responsiveness in Thunderbird 91

To manage notifications about this bug go to:
https://bugs.launchpad.net/thunderbird/+bug/1959747/+subscriptions