Weirdly enough, JPEG-XL support is actually fairly decent in Firefox already and there were patches developed by the community that work well for things such as

Weirdly enough, JPEG-XL support is actually fairly decent in Firefox already and there were patches developed by the community that work well for things such as color profiles, animation support etc. I’ve had them in Waterfox for a few years now - it was a purely “political” decision, if you want to call it that, to stop any more progress until recently.