Deep Freeze is a program used to  prevent any permanent changes to public computers.  Any changes made to the computer are undone with a simple reboot.  With a password one can install, uninstall, update any programs needed.

Editing Firefox for public computers

1. Tools --> Options
2. Main Tab --> Set Home Page
3. Privacy Tab --> Uncheck Remember visited pages, Remember what I enter in forms and the search bar, Remember what I've downloaded
4. Privacy Tab --> Check Always clear my private data  when I close Firefox, Click on Settings to choose all the options. e.g. Browsing History, Cache, Cookies, etc
5. Privacy Tab --> Check Ask me before clearing private data