how to make firefox not remember wot i type

like when you type say ‘wh’
it will show previous words i typed like ‘what’ or ‘where’
etc…
how can i set firefox not to remember what i type for specific websites?
Answer #1
http://antivirus.about.com/od/securitytips/ht/ac_firefox.htm
Hope this helps…
BTW a google search for “disable FireFox autofill” brings up a few thousand results.