THANK YOU, THIS IS WHY I LOVE YOU.

cool; now i can see real colors for the media i'm watching!

I can't write what this extension does. However, you can also check the website: https://www.color.org/version4html.xalter
Anyway, to be precise, "color support on", "color support off". And quite importantly, a browser restart is probably needed.

Ok

This is a helpful extension, though it produces strangely washed out colors in 4k HDR video when set to "Without Color Management" (green light in header icon) in Firefox 102.0 on an M1 Macbook Pro running macOS 12.4

Is this really what the raw video looks like with both Firefox and macOS color management disabled? The same video loaded in mpv matches the default Firefox color management (red light).

https://imgur.com/a/iRAOlsV

https://www.youtube.com/watch?v=njX2bu-_Vw4

Improves colors, simple green/yellow/red status indicator.