I’m having an account on large number of sites where registration is required to access their content or to access their features. Memorizing login details for all of them is impossible, using same login/password combination is not the best solution.

Lastpass allows you to keep all login details on their servers and access them from any computer connected to Internet with plugin for Firefox browser. Considering that the passwords are stored on remote server, I would not use it for critical services such as online banking or your e-mail address account, but for the sites you visit regularly it would help you by logging you automatically or pre-populating login and password fields for you.

Lastpass also provides automatic form filling for common fields such as your name, address, e-mail, phone number. Multiple profiles allow you to define one with actual details and other with some dummy data for places you don’t want to leave you actual details.

In addition to Firefox, LastPass has plugins for Internet Explorer and Safari browser and option to create secure password storage on your USB flash drive.

Website: https://lastpass.com/