[Bug 1959747]

[Vseerror-i]

(In reply to Frank from comment #39)
> I tried the latest Thunderbird 112 beta 6 and unfortunately the situation is still the same. I also managed to capture a profile of simply moving the mouse cursor vertically across the message pane window. My CPU usage goes up to 25% (on a 4-core CPU) while doing so: https://share.firefox.dev/3zvwCZH

Geoff, does this reveal anything useful?

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https://bugs.launchpad.net/bugs/1959747

Title:
  [upstream] Very high CPU and slow responsiveness in Thunderbird 91-102

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