This may be my memory playing tricks on me (after all, time perception changes as you get older), but if I think back to the speed of adoption of just about any image format that came after JPEG and GIF, then JPEG XL seems to be moving really fast by comparison.

EDIT: granted, computers being stuck on old versions of Internet Explorer back in the day and therefore holding back (for example) PNG adoption is a very different situation than that of the modern web, which makes it a bit of an unfair comparison.

i don't think your memory is playing tricks. from all these new formats, only PNG has really caught on yet. i don't think jpegxl will be adopted any faster.

Already in Chrome, Firefox, Edge: https://www.ghacks.net/2021/05/11/find-out-if-your-browser-s...

Yes but behind a Flag. With default settings, it hasn't landed in any browser yet: https://caniuse.com/jpegxl

I hope that Safari does not take as long to implement it as with WEBP...

I doubt it will be enabled by default until it reaches version 1.0, it is currently at 0.3 IIRC

Firefox is a very different browser. Edge shares its base with Chrome, and that's derived from WebKit.

firefox is chrome distribution? that's new to me