[Bug 109943]

[Vseerror]

(In reply to David von Oheimb from comment #44)
> ...
> Just set the IMAP Server Name of some account to an unreachable IP address
> like 1.2.3.4 and try getting emails from there.
> 
> This bug is apparently very low-level in the Mozilla network layer and has a
> number of related bug reports touched again recently also for FF.

Correct, Firefox gets the same issue.  Perhaps a different bug, if the
progress meter doesn't spin or your profile is different from the one
Merike collected


(In reply to Philip Chee from comment #41)
> WAG: Just a guess. Go to about:config and set the following preferences:
> layers.acceleration.disabled -> true  [HWA disabled]
> layers.offmainthreadcomposition.enabled -> false

Note, we've seen a variety of behavior with HWA disabled or enabled.
For example, in bug 1267662 HWA disabled improved performance on a Mac

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https://bugs.launchpad.net/bugs/109943

Title:
  Thunderbird: high CPU usage from progress bars

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