Fanatastic! Rated 5 out of 5 stars

Very well done, works flawlessly!Extremely useful while firefox still does not have native Notifications API support.

The only suggestion I'd make is to emphasise a bit more that configuration for individual sites is via a right-click context menu when viewing that particular site.

This review is for a previous version of the add-on (2.1.1-signed.1-signed).