Sometimes programs tell me I can't start it because there is already another instance of it running. Best example would be Firefox and Chromium, but this problem accounts for many applications.
I cannot find the applications PID in the running processes.
How to kill all running instances of a program, e.g. Firefox?
ps ax | grep firefox
But everything I can find is:
8193 ? Rl 0:08 /usr/lib/firefox/firefox
But I get:
Process not found
Actually, even when Firefox is running accurately, I cannot find its instances in
What did I miss?