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Some HTML5 Videos on youtube won't play

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New Contributor

Some HTML5 Videos on youtube won't play

Only recently have i started to get this error message on youtube videos

"Your browser does not currently recognize any of the video formats available."

Its not all of them but most of them give that to me, its quite annoying that i have to load up chrome just to watch a youtube video.

I'm using FF19.0

5 REPLIES
Senior Contributor

Re: Some HTML5 Videos on youtube won't play

Hi there,

Your list of installed plugins reports that you're having two versions of Flash installed at the same time (Flash is the plugin that youtube uses to play videos). One thing you could try is to uninstall both of them and then just install the latest one. This articles walks you through both of those things: Flash Plugin - Keep it up to date and troubleshoot problems

Let us know if this solves your problem!

Cheers, David

New Contributor

Re: Some HTML5 Videos on youtube won't play

I disabled the older one (there doesnt seem to be an option to uninstall them in firefox)

And also adobe says i have the latest one 11.6.602.171

Still nothing happened, but isn't this about HTML5? It gives me an error about that not flash.

New Contributor

Re: Some HTML5 Videos on youtube won't play

I was having the same problem but I kinda solved it. Go to http://www.youtube.com/html5 and opt out of the HTML5 trial. Now videos should work in YouTube without any problems.

New Contributor

Re: Some HTML5 Videos on youtube won't play

yeah that seemed to work thanks

New Contributor

Re: Some HTML5 Videos on youtube won't play

install flash player... Now everything gonna fine...