Overall very useful . HOWEVER, latest Lastpass extension with Firefox 57 release has teething problems. They will fix these eventually, but I had to revert to FF 56.0.2 and Lastpass 4.1.67 (on Windows).

Problems:
(1) Would not Autofill several websites (eg, login.fidelity.com)
(2) Could not edit any site info through the extension
(3) Copy Password is temporarily missing, so very inconvenient to work around first problem

用习惯了，人变懒了

It preserves my passwords across several different platforms and eliminates duplicated passwords.

Easier to use and with fewer problems.

Works great!

I love this extension!! It simplifies my life.

The Last Pass password manager add-on for Firefox is definitely worthwhile. If you are someone who uses the same password for most of your sites and has a hard time coming up with passwords, Last Pass makes the experience seamless. When you create an account on a website, Lass Pass can be used to generate a strong password and then it saves the website for you so that you can easily login to the website whenever you want. The Firefox version is definitely better than the Edge version because it is easier to generate a password and fill it into the place it is needed. However, Last Pass for Edge may not save the generated password or update the password for your site if you changed it.