Firefox: Mozilla-built, experimental Firefox extension Account Manager logs you into and out of websites with the click of a button, allowing you to access your online accounts more easily.
Account Manger is an alpha version add-on that installs a key icon to the left of your address bar (meaning not all sites work with the add-on at the moment). It keeps all your passwords stored similar to LastPass, but doesn't sync passwords between browsers. (That's a big reason Kevin loves LastPass as the perfect password solution.) In order for Account Manager to work, you must enable Firefox to store your password. To sign in or out, click the key, followed by 'Connect' or 'Disconnect'. Some sites work better than others, but Google, Yahoo, Facebook and a few others are currently supported. Mozilla will eventually integrate Account Manager into Firefox, but right now it's only available as an add-on. Account Manager is a free download for Firefox.