This is the best I've tried, and works on Android (with app fill, too) for free. That said, it is buggy sometimes (esp on Android). Wish it was better at updating passwords rather than creating duplicates for the same site.

The extension is not as good as the one in Chrome. Lacking copying username, password features.

This is a great extension for security an reliability. I don't give it five stars because sometimes it has happened to me, that I generate a password using the extension, but then the extension doesn't save my user info to that site.

Works as advertised. (2018-06-10)

Doesn't work on mobile Firefox for quite some time. It asks to login but never actually logs in

Reliable and easy to use

Still waiting for it to log on though update would have fixed it

Шо за хуйня!?
Заебалася каждый раз входить!

Als Passwort Manager unschlagbar.

Macht aber Firefox insgesamt so langsam, dass man dieses Addon nicht verwenden kann. Seit ich dieses Addon deaktiviert habe läuft Firefox wieder schnell. Mit Last Pass gab es oft keine Rückmeldung und lange Ladezeiten.

Bei der Passwort Manager Funktion passiert es, dass Last Pass einen Zugang verkompliziert. Schade, Last Pass ist dank sicherer Ablage in der Cloud unerlässlich für Leute die nicht bei jedem Dienst ein ähnliches Passwort verwenden wollen.

NOT user friendly and VERY difficult to have to recover!

I have a critical security issue:
I have my lastpass configured with 2-way authentication. When I login into lastpass via this plugin and I am currently on a website, where I have saved credentials, the login form is already autofilled, even though I haven't entered by 2nd way token. Please fix this as soon as possible.

Firefox 60.0.1 (64-bit)
Ubuntu 16.04 LTS