I'd recommend using a command line program to kill the process. It is more accurate and reliable, especially if you have other processes that start with an "f". You don't want to accidently close a process you didn't mean to close. To do this:
1. Download
http://www.beyondlogic.org/solutions/processutil/processutil.htm2. Extract "process.exe" to your root folder. (i.e. C:\)
3. Create a macro with
<inputbox Please enter the process name:,var1><keybreeze cmd><delay 200>cd \<enter>process -k <type var1>.exe<enter><delay 200>exit<enter>
4. Save as "kill process" or something, and create the keyword.
Now when you type the keyword in keybreeze, you just type the process name in the box (i.e "firefox"), and it will kill it for you.