Question [Q] video player in browser on CM11

I can't write in the official thread because i don't have much messages, anyway.. i'm getting mad with the stock browser videoplayer , before the cm11 i had a stock 4.3 and when I tried to watch a video from the browser i had many player choices (gallery stock video player, es, etc etc) now with the cm11 I haven't this option, the video starts with a video player inside the browser (not the gallery video player but this ) i also tried chrome but the problem is the same, i checked the app info associations but the button is grey (unclickable).. another boring thing.. is impossible to see a fullscreen movie with that standard video player, the phone goes in lock screen mode like if i not seeing a video (without the fullscreen is ok) how i can fix that problem? thanks guys, have a nice evening.