[dartos]

AFAIK, Firefox has all around awful webgl and webgpu performance.

I know personally, anything 3d in Firefox is a slideshow, even with a 4090

[ddtaylor]

It's running quite well here on Firefox in Fedora 38 with a AMD Radeon 6700 XT.

[wizzledonker]

I have an AMD 6700xt.

It was laggy in Windows and under X11 on linux, but under Wayland I get 60-80fps and it's very usable.

Not sure what the cause is

EDIT: Under Chromium (compiled from AUR) the performance is roughly the same

[aceazzameen]

Works fine for me running Firefox in Windows with a 3090. Also already have Unreal open on another screen. So lots of my GPU memory is already being eaten up.

[starkparker]

In Firefox on a 12th-gen Framework i5-1240P, Fedora 38, integrated graphics at 2256x1504, it works and looks fine for me.