I have set Flash to "ask to activate". Now Youtube does not load the video. How can I make Youtube use the HTML5 player?


Simply go to http://www.youtube.com/html5 and scroll down a bit to find "Request the HTML5 Player" button.

YouTube HTML5 Player Switch

This should make YouTube use the HTML5 player instead of the Flash Player.


Start by installing a media player plug-in for Firefox. Personally I prefer the tighter VLC:

sudo apt-get install browser-plugin-vlc

Restart Firefox and then access this web page:


There activate the checkbox "The HTML5 player is currently used when possible."

  • The plugin is not needed if you're going to use HTML5.. HTML5 Video is the function of the browser, not a plugin. – Muhammad bin Yusrat Jul 28 '15 at 7:29

You can go here: https://www.youtube.com/html5?gl=EN

and set the HTML5 player instead of the default flash player

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