do NOT upgrade to version 4 Rated 1 out of 5 stars

It's riddled with bugs (won't save prefs correctly), and everything it does is massively slower than in version 3. If they force all to use version, I'm out.

Slow Upgrade Progress Rated 4 out of 5 stars

While Chrome extension is getting fancy new looks, redesigned UI. Firefox is still stucking with the old system. With the imminent change of Firefox extension API and multi-process enabling. This addon is still incompatible with the coming Firefox features. Please upgrade it.
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Update: Saw a comment down below. Lastpass is providing the latest version of Firefox extension on their own website, which is compatible with multiprocess. Here is the link: https://lastpass.com/lastpassffx/xpi.php
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Update: Development channel on this page also works.
https://addons.mozilla.org/en-GB/firefox/addon/lastpass-password-manager/versions/beta

Great Add-on for Firefox! Rated 4 out of 5 stars

This add-on has been a life saver for me, as I have way too many passwords to keep track of! Excellent for someone that has to save and manage many passwords on spreadsheets and other docs. This allows you to keep your multiple usernames and passwords for different accounts in a secure fashion. It integrates very nicely with Firefox. After verification of identity, it's a one click step to all of your accounts (usernames, passwords, and other notes about the account).

My only caveat is the lack of universal implementation of username and password input in an admittedly small sub-sector of websites.

I would be more than happy to work with the developers of this add-on to help improve and debug the application for websites that do not work as expected with this add-on!

Switched to Chrome because of this extension Rated 1 out of 5 stars

I was a steadfast user of Firefox, up until I noticed it slowing to a crawl (and often to a freeze). Tried to narrow it down and after a restart with Add-Ons disabled and trying each extension, I narrowed it down to LastPass. Without it enabled, FF works like normal; but the moment I enable it (it has No Restart if I recall) it quickly slows down until I have to kill it in task manager.

That was probably spring of 2016. I've since switched to Chrome as my work and personal browser and the LastPass extension there works just fine if not better (autofill functions, among other things). I use LastPass more than all the other extensions I have, so I was willing to find equal to sub-par alternatives for those on Chrome.

I do notice they have come up with a 4.1.25 version (which is not posted on Firefox's Add-Ons system) that forum users on LastPass have said fix this problem. I may try it one more time down the road, because I do miss the sheer number of extensions available on Firefox. If it works, I will revise my review here. But really, why is there not more parity between Chrome and Firefox versions, and why does it take half a year to fix a browser-breaking issue?

Rated 5 out of 5 stars

Brilliant extension. A piece of piss to use.

Electrolysis Compatible with Latest Updates Rated 5 out of 5 stars

Excellent solution to a universal problem: bad passwords. Last pass allows you seamless day-to-day encrypted password usage with simplicity.

As to a previous users' post about incompatibility with Electrolysis (Multithreading in Firefox), this version is not the latest (someone should tell LastPass?). To get the latest, compatible version, head over to their website.

Bugged out Rated 2 out of 5 stars

Worked fine for about a month, then it logged me out and forgot my account information.

Awesome Password Manager, Get the Extension from thier HomePage! Rated 4 out of 5 stars

Lastpass as a password manager is great and love being able to use it on multiple OS.

The extension here is very. outdated sadly. Recommend you get the extension directly from their homepage. Other then that, it's a great password manager!

Excellent addon Rated 5 out of 5 stars

But, not work with Electrolysis. Addon tell me that can't establish connection with server.

Can't change the menu's language Rated 2 out of 5 stars

The functions work fine but the menu is in Simplified Chinese for some reason. I can't change it to any other language. I followed the user manual on the official site and it changed the language of everything except for the LastPass icon menu (which is the thing I use the most). Very annoying.

that's awesome Rated 5 out of 5 stars

it's really helpful. but UI of lastpass extension in Chrome webstore is better than firefox, why?

Very googd Addon Rated 5 out of 5 stars

This add on is very helpful for me. It is really nice and helpful. Thanks for creating such nice addon.

Millions thanks Rated 5 out of 5 stars

It made working on internet so easy... I love this extension. The first few things I do after installing my browser is ti install Last Pass. Thank you very much.

Get the latest from Lastpass.com directly -- many bugs in e10s with this version Rated 1 out of 5 stars

Version 4.x installed directly from lastpass.com works great. This version, 3.3.x does not work well with e10s. Rating is for the version available here.

LastPass Beta Broken Rated 1 out of 5 stars

Windows 7 with the latest release version of FF 64bit. When I go to create a new site login, the window that pops up is way larger than the screen and I cannot scroll. I end up having to use dev tools in a separate window so I can recode the page to have it be the appropriate size. It is awful and annoying.

Отличный менеджер паролей, но Rated 4 out of 5 stars

Но огорчает отсутствие возможности иметь локальную копию зашифрованной базы данных паролей. Из-за отсутствия приложения для android пришлось перейти на использование менее удобного keepass (+google sync plugin+keepass2android). Для android есть лишь плагин к браузеру firefox, но на смартфоне я использую chrome - он быстрее и стабильнее в android os.

Best online password manager I've used Rated 5 out of 5 stars

I'm using the free service for years now, but I'm very satisfied with LastPass. It gets the job done, and it syncs with Firefox so I don't have to copy-paste in a flash drive every time I update my passwords.

Best password manager in terms of functionality and convenience.

Very nice but some times stucks Rated 3 out of 5 stars

It's very useful and visually good but some times stucks, some times i got login troubles to lastpass account.

edit page a bit slow.

3.3.1 is SO much better than 4.1.20 Rated 1 out of 5 stars

I've been using LastPass for years. My only annoyance with the interface is that it wouldn't display my secure notes in alpha. Try as I might, I couldn't fix it.

Then 4.1.20 appeared, and voila, the notes sort correctly. But 4.1.20 is really slow compared to 3.3.1. It relies upon FF to draw windows that it then populates with data. 3.3.1 draws its own boxes. 4.1.20 also seems to require me to peel through more layers than 3.3.1 to get where I need to be.

Whatever LP might have gained in aesthetics by modernizing its chrome, it lost because it tried to do it within the FF tool set. Definitely not as pretty as it could be. But more importantly, it is SO much slower.

Needless to say, I'm staying with 3.3.1 until they pry it out of my cold, dead hands ...

The best and useful password manager for Firefox Rated 5 out of 5 stars

It's gotten a lot of slack, but it's still the best password manager for Firefox.