Ed got a used computer and wants to know if he can delete his browser's autocomplete stuff. Leo says he can reset his browser and that will wipe out everything in the autocomplete file. Or he can delete them individually by starting to type, go down to it, and delete it.
There is a 'refresh Firefox option.' Ed should go into the help menu and go to troubleshooting information. There will be a button there that will wipe out everything. He can also just delete the profile folders in the firefox directory.