Browser Support • Re: X not playing videos

application/x-mpegurl appears related to HLS support from what I've gathered. It seems like Firefox simply supports HLS via something called Media Source Extensions, though apparently it is possible in theory to have native HLS support (which apparently Safari does).

I have yet to look into where our support for those two things is currently, but I think that's related.

maybe this? https://forum.palemoon.org/viewtopic.php?t=13475