Doesn't pop-up anymore Rated 3 out of 5 stars
Finally stopped alerting me of new mail when there was none. But, now it doesn't do the pop-up alerts anymore or show that I have new mail on the icon.This review is for a previous version of the add-on (18.104.22.168-signed).
Rated 5 out of 5 stars
He just made a new version and it's working for me so far! Go here to install (click on "Install Yahoo Mail Notifier" under 'Quick Start' in the right sidebar).
Rated 4 out of 5 stars
Just found this about the issue...