MacOS M2 HDR broken / too bright

Since switching to Mac / Apple Sillicon last year, I’ve had trouble with HDR videos on YouTube with Firefox.

For whatever reason, any HDR video will look super bright on Firefox. This problem only exists on Firefox. I’ve never had it with Safari or chromium-based browsers.

Here is a side-by-side comparison of how a test video looks. Sorry for the photo but the screenshot utility wouldn’t capture the problem.

https://imgur.com/a/OSHGPjz

I’ve been searching the webs for a while but so far I could not find a bug report or anything related to this specific problem. Maybe someone else has had similar experiences and can help me with fixing it. I really don’t want to have to switch to another browser whenever I come across an HDR video.

Hardware info
Computer: Mac Mini M2 Pro
Display: LG UltraGear 27GP850-B