Extreme RAM usage Firefox

[MichielvdVelde]

I checked out dustinbrett.com, using Windows 11, Firefox 133.0.3 (64-bit). The site quickly became sluggish, and RAM (32GB) usage spiked from ~43% to 88%+, maintaining that level even after closing the tab. Closing all Firefox windows brought the RAM usage back down in the range around 34%. I tried Chrome as well, and it did not have such a problem.

I haven't looked at the code with any detail, so I can't provide additional context. Hope it helps, but feel free to ignore.

Impressive architecture, nice work! :)

[DustinBrett]

Thanks for the report! I hadn't noticed this issue myself so I am wondering how best to recreate it. Is it possible to know your system specs also such as CPU & GPU?

In my tests I wasn't able to make Firefox use that much ram or cpu, not even 1 gigabyte.

Also, if you change the wallpaper to a static wallpaper like APOD or a custom image, does this help? I am wondering if the animated wallpaper could be causing issues with your GPU.

[MichielvdVelde]

My CPU is AMD Ryzen 7 5800H, dedicated GPU is GeForce RTX 3070 Laptop version.

I'm not even able to change the wallpaper before Firefox starts lagging too much, sorry.

It's not much, but I hope it helps.