The Download Now link will prompt a local download of the Firefox extension. To install the extension directly, open the file using your Firefox browser.
Automatically generates per-site passwords if you prefix your password with @@ or press F2 beforehand. Prevents JavaScript from reading your password as it is typed. The same password will be generated at each subdomain: a.example.com matches b.example.com, a.example.co.uk matches b.example.co.uk, but a.co.uk and b.co.uk are different.
It creates site-specific password with ease and I only need to remember only one password.
Cons
Instructions and documentation of its limitation need to be improved.
Summary
Easy to use, but more helpful documentation on usage guidelines and limitations are needed.
It's recommended for any website where you need higher level of password security.
The length of the hashed password appears to be 2 characters more than your password. Therefore, if the website requires a 8-12 character password, your password needs to be between 6 and 10 characters. The minimum hashed password length is 4. Do not use special characters in your password if any website you plan to log-in allows only alpha-numeric characters in the password.