JWPlayer 6.12 Firefox primary : 'html5' bug
We recognized a really hard bug, that occurs only in Firefox an mostly on MacOSX.
Initialising a jwplayer with primary : 'html5' results in an endless buffering animation. After hours i found out, that the post loading of jwplayer.html5.js crashes in Firefox in a way.
As a solution i put the jwplayer.html5.js directly after the jwplayer.js and everything works fine.
May be you can check what is wrong with the loading process..