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#Firefox massive slowdown bug in 133, clearly this must not affect everyone, but it's bad enough if it does turn out to affect you that I'd advise not updating to 133.

https://bugzilla.mozilla.org/show_bug.cgi?id=1935804

https://bugzilla.mozilla.org/show_bug.cgi?id=1935456

in my case, when affected, my entire system slows to a crawl. my wild-ass guess after using my affected system and reading these bug reports is that something is generating a lot of work for my window manager, because Cinnamon-related functions are impacted. #mozilla