Firefox Demo Performance Issues

Users report varying performance of a GPU-intensive web demo in Firefox, often experiencing lag, low FPS, and choppiness compared to Chrome, with troubleshooting focused on hardware acceleration, drivers, and OS-specific issues.

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Keywords

RAM FF CPU LYUINSc.jpg M1 OK FPS impress.js PC GPU firefox chrome gpu acceleration linux smooth hardware rendering graphics ff

Sample Comments

I'm on the latest Firefox, everything is fine. It's smooth enough, even on integrated graphics.

jvdvegt Mar 14, 2025 View on HN

It's a GPU-heavy demo site. My Firefox on Linux handles it fine.

gsanghera Oct 26, 2019 View on HN

Turning off hardware acceleration in Firefox seems to make it work much better. No idea why!

JohnTHaller Mar 3, 2021 View on HN

Really bad on Firefox on Windows 10 64-bit (latest) with an i7-7700k and GTX-1060 6GB as well

sabellito Apr 19, 2025 View on HN

Unusable on Firefox sadly, was getting maybe 5 fps.

waheoo Mar 9, 2020 View on HN

Loads instantly for me on FF desktop and laptop running linux. But i have experienced what youre talking about.You either have graphics hardware support disabled or youre laptop CPU is not running in perfoance mode and has its govenor set to something like balanced or power saving mode.

azakai Jan 7, 2013 View on HN

Chrome and Firefox work fine, no lag, over here (Ubuntu). Must be a specific problem on the GP's machine.

sgt May 17, 2025 View on HN

Maybe it's a browser issue and not GPU / CPU

meinaccount00 Aug 30, 2022 View on HN

Worth checking that Firefox is (also) using the GPU correctly.

capitainenemo Feb 16, 2022 View on HN

Smooth for me in Firefox on linux too. Maybe check about:support to see if there's any graphics driver issue?