Outstanding!!!! Rated 5 out of 5 stars

I've been looking for a replacement for Update Notifier since support had been dropped beginning with Firefox v4.0. Not only does this add-on replace Update Notifier, it blows it out of the water!!! Even if Update Notifier were still being supported, I would have switched to this add-on instead. Excellent!!! And thank you so much!

This review is for a previous version of the add-on (1.3.1-signed).