[tor-talk] YouTube Unscripted

[MacLemon]

You can simply visit https://youtube.com/html5 to get a cookie that will tell YT to always use HTML5 video instead of Flash. If you're reasonably averse to cookies from Google/YouTube you can add &html5=True to any YT URL to directly link to the HTML5 version like so.
https://www.youtube.com/watch?v=bL9hsz5znaU&html5=True

This may or may not work in TorBrowser depending on your platform and Plug-Ins you have activated since Mozilla is allergic to playing MPEG4/H.264 video even if handing off playback to the OS would perfectly be possible. (But that is a totally different kind of discussion.)

Best regards
Pepi