So recently I got tired of all the YouTube comments saying "OMG this song is so much better in 720p", not that I don't like the great music or my connection sucks, it's just, when I'm listening to a playlist, I have to manually set it to 720p or 1080p for each song - nobody wants to do that. So I went to Google!
Read more on http://variable.dk/blog/291-youtube-auto-hd-720p-or-1080p-in-chrome
