Generate per-website passwords based on a master one.
What is PasswordMaker X?
PasswordMaker X is a Firefox add-on that allows you to generate individual passwords for each website you visit. Using a master password and a unique algorithm, PasswordMaker X ensures strong and secure passwords for your online accounts.
PasswordMaker X is relatively safe to use as it requires very minimum permissions.
PasswordMaker X has earned a fairly good reputation and likely can be trusted.