Good. Rated 4 out of 5 stars

Works ok. Once I got this:

TypeError: window.animateCloseAlert is not a function

This review is for a previous version of the add-on (1.2). 

Rated 4 out of 5 stars

Shouldn't the notifications hide after some time? Also there should be an option to remove the buttons in the notification.

This review is for a previous version of the add-on (0.7.0).