Hi meltingheart, I would take a look at http://portableapps.com/ if I were you. I think it will be exactly what you are looking for. It allows you to run a version of Firefox (and other awesome programs) that are all contained on a small usb thumb thumb drive. That way you have access to all of your firefox bookmarks and tools everywhere you go. As soon as you unplug the drive, you take all your user data with you so it doesn't leave any of your private info on the computer. I have a little USB drive attached to my keychain that I use for just these purposes. It's pretty awesome!