Youtube webm html5 videos do not work with the PPA but work with the official firefox.com client

[personaljesus]

Goal: Play youtube webm videos without flash
Issue: Some firefox 4.0 betas (like this one) do not allow me to.

Enroll in the HTML5 trial: http://www.youtube.com/html5

http://www.youtube.com/watch?v=wHT-GmbmS7U is a webm video.
http://www.youtube.com/watch?v=4eDAEY-8K-Q is a webm video.

Both of these work in the official 4.0b8pre client, but not in the mozilla daily ppa or in this PPA: http://is.gd/f6TM4

I've tested useragents, I've tested nightly/daily ppa and mozilla beta ppa. I cannot get the youtube videos to play as webm. I get detected as flash in the PPAs.

Here's a related question: http://support.mozilla.com/en-US/questions/764217

[Bryan Quigley (bryanquigley)]

This was fixed at some point (at least it has worked for me for m any releases). If it still doesn't work for you please reopen the bug.