Essential Add-on. Rated 5 out of 5 stars

Works with more sites for me than paid Roboform did, for free!
Well behaved toolbar button.
I like the encrypted online "vault" for sync and as a backup for hundreds of bits of info that I would die if I lost with a crashed/lost/stolen notebook. Thanks!

This review is for a previous version of the add-on (1.51.2).