Firefox LiveCD is LiveCD similar to LiveKiosk, but with original binary version of Mozilla Firefox. No changes were done to user interface and everything is set to Firefox defaults.
LiveFirefox is intended for people who want to have custom Firefox based LiveCD, but find LiveKiosk unsuitable for this purpose. You can find customization instructions in usersettings/ directory on CD.
If you are here because you are looking for locked-down kiosk we recommend you take a look at LiveKiosk (kiosk with user interface) and LiveInfo (full screenkiosk without interface).