Review for Yahoo! Mail Notifier by Димо Ванчевъ
Rated 4 out of 5 stars
I'm using it for over a year. There are periods where it behaves strange (probably due some changes on yahoo side), but in 95% of time it works just perfect!
This review is for a previous version of the add-on (1.0.0.17).To create your own collections, you must have a Mozilla Add-ons account.