A recently released plugin for Firefox allows hackers, identity thieves and snoops to get your Facebook username and password, along with a whole lot of other sites.  This tool is super easy to use and very effective against any site that is not using SSL for their logins.  However, if you use Lockfox, your information is safe from the users of this plugin, because all of your information is encrypted before it ever leaves your PC.  This tool is completely useless against users of Lockfox.