Windows just got an update to play HDR video while Windows is in SDR mode, which makes HDR a lot more accessible and the advantage of having HDR support on Firefox greater. I have seen some stuff happen on Bugzilla, but it's not super clear how much ...
AMD has also had a video upscaling feature for quite a while now, but it is not yet supported on Firefox as far as I can find out. I feel like its existence has flown under the radar a bit, as I have yet to hear anyone talk about its implementation.
