Works well Rated 5 out of 5 stars

Simple and straightforward. I'd love to be able to assign my own keyboard shortcuts, though.

This review is for a previous version of the add-on (0.5). 

Broken with the Google Play rebranding Rated 5 out of 5 stars

This worked perfectly up until yesterday, when Google changed Music to Play. I managed to fix this by going to

[Firefox profile dir]\extensions\jid1-12V4vJVY0YZiIA@jetpack\resources\jid1-12v4vjvy0yziia-at-jetpack-goosic-lib and editing all instances of music.google.com in the main.js file to point to play.google.com/music .

This review is for a previous version of the add-on (0.4). 

Thanks for the comment! I have added a new version, 0.5, to use play.google.com