This file is a harmful and undesirable program. Probably virus. It's recommended to delete it.
What is FF.EXE Windows startup process
File name: FF.EXE
Program name: [not used]
Description: W32/Rirc-D worm.
Information added by: ii233 at 24 January 2008
Hint: If ff.exe file is a virus or trojan, we recommend to use a antivirus software or registry cleaner.
We are presenting list of Windows processes, startup files.
Name of FF.EXE is [not used]. Some of them are viruses, so you should use a antivirus program.