this post was submitted on 22 Sep 2025
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I uploaded a meme in .jxl and everyone downvoted it because they couldn't see it. If you use a firefox fork please enable it ffs.
Is it not enabled by default in firefox?
Nope, Mozilla doesn't trust it to be secure. A newer Rust decoder for Firefox is in development.
Firefox only packaged it in nightly builds.
Stable has the setting but it does nothing.
can you even enable it as an option? I thought they removed it because of "attack surface" concerns
In can be enabled in about:config but only in nightly. It works in most forks as well. A Rust decoder for .jxl is in development. Mozilla said they will include it in Firefox when finished
~~i just enabled it in firefox stable, 143.0, linux ~~
edit: i have been bamboozled, it does nothing
test your browser for jxl support: https://jpegxl.info/resources/jpeg-xl-test-page
check if it actually works, last time it didn't do anything for me
Did it actually work?
ah yeah, is that rust implementation the one being written by the chromium jxl team?
The setting is image.jxl.enabled for those who want to try it.