Bugzilla

(In reply to NISHI from comment #4)
> (In reply to Wayne Mery (:wsmwk) from comment #3)
> > Other slowness reports for Big Sur
> > * https://www.reddit.com/r/Thunderbird/comments/juuad7/thunderbird_slllllooowwww_on_macos_big_sur/
> > * https://support.mozilla.org/en-US/questions/1313747
> > * https://support.mozilla.org/en-US/questions/1313845
> > 
> > hang report https://support.mozilla.org/en-US/questions/1313762 and https://support.mozilla.org/en-US/questions/1313810
> 
> Thank you.
> I think the issue should be set to the highest priority to fix ASAP.

Does not only affect Big Sur, I can confirm most of these issues with Catalina. Something happened in 78, as 77 is reportedly fine.

Does not only affect Big Sur, I can confirm most of these issues with Catalina. Something happened in 78, as 77 is reportedly fine.