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 (1.0.7.1-signed.1-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).

http://ymnotifier.mozdev.org/index.html

This review is for a previous version of the add-on (1.0.0.21.1-signed.1-signed). 

Rated 4 out of 5 stars

Just found this about the issue...

http://forums.mozillazine.org/viewtopic.php?f=48&t=392174&start=405

This review is for a previous version of the add-on (1.0.0.21.1-signed.1-signed).