Rated 5 out of 5 stars
So is it an "addon" or "add-on" - that is the question. :)
Seriously though, this add-on is the best. I love it and am very grateful that you wrote it. It is so nice having the icon in the toolbar and not have to open a separate tab, select the "check for updates" from the dropdown, then wait to see what's new. The ability to see when updates are available at a glance and install them when *I* want is AWESOME. Thank you!