LastPass Password Manager for Firefox

LastPass is a password manager that simplifies everything you do online by remembering your passwords, logging into your sites with one click, creating strong passwords for every account, and so much more.
With LastPass, you only remember one master password and LastPass takes care of the rest. It fills your logins for you and instantly syncs from your desktop to your laptop, your computer to your smartphone, your tablet to the web, so you never struggle to remember another password. LastPass is free no matter what device you use!
Why Use a Password Manager?

• Save, encrypt and backup all your passwords and logins, automatically
• Sync your data no matter which browser, computer, or mobile device you use
• Only one strong master password to remember
• Securely store more logins, with more universal recognition of websites, including bank logins
• All the features you need to be more productive and efficient
• Only YOU know your master password, LastPass never has your key
• Secure offline access to your data via the browser extensions and mobile apps