Firefox 157 Will Enable JPEG XL by Default Everywhere
Mozilla has announced that Firefox 157 will ship with JPEG XL support turned on by default across all platforms, ending years of the format sitting behind experimental flags. JPEG XL offers better compression than JPEG at similar quality, supports both lossy and lossless modes, and can handle animation and high dynamic range images in a single file type.
The format has had a rocky path to mainstream adoption. Google removed JPEG XL support from Chrome in 2022, arguing the ecosystem benefits weren't clear enough, which stalled broader momentum despite backing from companies like Adobe and camera makers exploring it as a photography format. Firefox's move makes it the first major browser to fully commit to shipping JPEG XL out of the box.
With Firefox on board, site owners and image-hosting services now have a real reason to start serving JPEG XL to a meaningful slice of users rather than treating it as a niche experiment.