To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for Mailbox Alert by machinegodzilla
Rated 4 out of 5 stars
Great!
Just add popup duration -> infinity (until clicked on) and you will get 5 stars from me :-)
To create your own collections, you must have a Mozilla Add-ons account.