The most recent version always fails when trying to save passwords, which makes it mostly useless.

Last update broke it on Firefox on Fedora Linux

Installation Process needs work. Some links do not work and requires backing up and reloading.

Stopped working on Firefox, I'm switching to bitwarden

Last update broke it.

Doesn't work on Firefox 71 on Fedora.
After logging in, nothing shows up. It shows I'm still signed out.
Uninstalled and reinstalled, but still not working.

Did not work any longer after update to Firefox 71 on Linux

not working on latest Firefox

Not working at all with Firefox 71 - would someone at Mozilla please FIX THIS! More than a major inconvenience - just really disgusting that there is no fix and this password manager that I'm so dependent on is not working at all.

Stop working since firefox 71 upgrade.
Get stuck on login screen.

Poorly maintained extension. LastPass is dead, time to move to other password manager. This extension randomly crashes Firefox completely, all pages get stuck loading and the browser doesn't respond. AVOID.

Stopped working after upgrade to Firefox 71 on Linux

Very disapointing. It seemed to have magically changed my master password so I'm locked out of my account. I had stored so many important passwords using it and I used their password generator multiple times. To make matters even worse, their Customer Care cannot help you reset your password. (Apparently they store all of your passwords locally on your device but how true can that be?) My advice, don't waste your time on this rubbish password manager.

Update: It seems my password changed back to my former LastPass password and I've lost some data. The only problem with LastPass is if you ever lose your master password you're screwed.
Another Update: Scratch 'some' of my data; EVERY single saved password is gone. Don't bother using LastPass

Besides seemingly changing my password on critical software sites, this program was almost impossible to edit/review. Trying to log-in to a program where LastPass seemed to change the PW was not possible even after multiple tries. Worse yet, trying to get help to resolve any misunderstandings - or - errors on the software's part also did not happen due to the reset password process. I do not recommend this software "solution - their words - not mine". God bless those who decide to try it.

I can't get on with this app at all. I've only got one site added so far, and it shows my user name on clicking the app icon - how secure is that? Can't wait to get rid of it.

Stupid and Useless, this DOES NOT import all of your existing Firefox passwords, so, really what good is this??? What am I missing here??? You have to start collecting our passwords all over from scratch when you start to use this program! Why bother?

After the update, Russian localization disappeared, the interface became incomprehensible

I can't find any instructions on how to use this extension. When i tried using my "master" password (so long, since it has to be at least 12 clicks long), I couldn't sign in to one of my sites. I had to use my old, site-specific password.

This shouldn't be recommended by Mozilla. This is a non-libre add-on to store and sync online passwords.
And the owning company is based in the USA. They will (or have) received request for user passwords like Lavabit did for their encrypted email.
https://en.wikipedia.org/wiki/LogMeIn

Libre/Open source software should be essential to recommend an add-on. They are using Mozilla's work without reciprocating.

And it violates Principle 4 and Principle 7 of Mozilla's manifesto https://www.mozilla.org/en-US/about/manifesto/