Review for Mailbox Alert by Zhora
Rated 5 out of 5 stars
Thanks for the really quick update. It makes it obvious when I get mail from people I really need to know about right away. I've used it for a long time and am glad it now works again.
This review is for a previous version of the add-on (0.25.1).To create your own collections, you must have a Mozilla Add-ons account.