Fantastic but i dont trust it Rated 3 out of 5 stars

This is a fantastic program. But I dont trust it. No amount of convincing will push me to put my credit card details on the addon and the remote server. If mozilla certifies that my personal data is safe, i could possibly be sold.
But for the moment, I m using it just for simple tasks.

This review is for a previous version of the add-on (1.44). 

You can read up on what we're doing, and Mozilla did review our source code

You may want to read what technology we use to prevent any one at LastPass from having access to your data:
https://lastpass.com/technology.php

We've also had some people say they put the last 4 digits of their credit cards as 0000 to feel safer.

Mozilla did get a copy of LastPass' source code to review before they made LastPass a trusted application.

We saw something interesting in Addon.mozilla.org's plan for the year where they plan on potentially making a bigger push into offering certifications that addons are safe.