A lot higher rated one works fine, but is lazy and only adds the "&hd=1" to the end of the URL. This is a lot more transparent and works perfectly. Does a task the google team apparently couldn't implement.
This thing work well. Let's hope it's messing up my firefox...
Just what I needed, works perfectly.
Youtube with max. resolution always :D
Hell yeah! Script works like a charm on Firefox 11. Its the only script i found that can KEEP HD quality while switching to fullscreen. rockihack, thank you very much for this script!
Should be the default for youtube :)