Firefox disables some 3d acceleration stuff on Linux, where it's enabled by default on Windows.
So look through your ~~about:config~~ about:support for any acceleration stuff that's disabled. You might be able to enable them.
this post was submitted on 03 Apr 2025
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There's a bunch of stuff that's blocklisted, I've been trying to fix this with google and reddit yet none of the things I see in the posts work. Chromium works out of the box with no lag, and my Thinkpad x240 with the exact same set up has no lag whatsoever, so at this point, I don't know what's the problem
I would rather suggest checking "about: support", not "about: config".
https://wiki.archlinux.org/title/Firefox#Hardware_video_acceleration
Firefox is a bit annoying on wayland, you often have to force enable hw accel. If you cant figure it out send me a DM, ill be glad to help you through signal/matrix/discord
Sent ya a dm :)