How do i remove some information from the auto fill on mozilla firefox?

I've got mozilla, and i'd like to remove just some of the auto fill information from the auto fill. How do i go about that?How do i remove some information from the auto fill on mozilla firefox?When clicking on the offending field (or sometimes double clicking), a list of autofill options will appear. Simply use the keyboards arrow keys to travel down the list until the erroneous value is highlighted. Then, just hold down the Shift key and strike the Delete key. That value will no longer appear in the form field as an autofill option.