The Music Controller extension allows you to control all the music playing in your browser from a single point. As the name says, the extension senses the music that’s playing in your tabs, and it gives you a controller pop-up to control the playback of the song. Music Controller works with YouTube, Pandora, Grooveshark, Google Music, Rdio, & MOG. I tried Music Controller on the services. There are some country restrictions of course, but I managed to get it to play Grooveshark and Pandora without a hitch. Google Music, Rdio, & MOG were blocked because it is not accessible outside the U.S. and there detection is pretty stringent. There are of course ways to get past that restriction which I am sure the savvy Guiding Tech readers among you know. YouTube was a disappointment, because Music Controller just wouldn’t detect it. Apart from this YouTube limitation, Music Controller seems to do the job. It adds a tiny dash of productivity to the way we listen to our music. Try out Music Controller and let us know if it works for you.