HTML5 no 480p and 1080p

[pep0w]

When I enable HTML5 player I don't see 480p or 1080p option to choose.

[Yonezpt]

This has already been reported before quite a few times: #119 #180 #352 #614
Firefox stable versions aren't able to play DASH formats yet (unless you force it in about:config, but it is very buggy), this means that you only get 720p and 360p quality options with the HTML5 player until Firefox is compatible with the other formats.

[pep0w]

well how do i force it.?

btw this happens no matter if i enable dash or not

[Yonezpt]

It will happen regardless of that option because the current stable versions of Firefox simply aren't compatible with it.

If you want to force it you can follow this guide: http://www.ghacks.net/2014/07/25/enable-mse-h2-64-support-youtube-firefox-right-now/
But it is very unstable, causes memory leaks constantly and your browser will often become unresponsive and/or crash even.

[Lucatir]

That won't work with Pale Moon, however. :) Its based on way too old version of Firefox and has no form of MSE support let alone any kind of MSE + H.264 (I don't think it even has H.264 codec).