This addon is a must for anyone looking to escape the world of Closed Source Software. As such the biggest pro is this is open-source. However some limitations amount to annoyances. LastPass atleast for the moment has better detection on password changes and registrations (atleast on Linux tested on Google-Chrome, Firefox and Chromium). Another annoyance I recently ran into is premium features I would suggest should be able to be toggled off so as to not make this software feel like shareware/freeware. The import of my LastPass Vault went pretty straight forward but had a few minor issues that I quickly figured out.... Infact its been a few months since and I can't recall but I believe it had to do with a few comments?? Luckily nothing major and I have a huge vault so I expect most users to be able to import without problems and whatever issue I may have ran into likely may have already been corrected. This addon has a lot of potental so please don't view my review as anything but constructive criticism! Currently I am on the fence over detection of changed passwords/missed registrations since thats a huge pro for me. I'd give this 3 stars if it were not for the open-source factor which is a huge security improvement in password management. Encryption is nice but if it is implimented poorly it is useless so by being open-source I feel that user scrutiny will catch anything that might not be caught in closed-sourced software.