I tried killing Firefox 3.5 from OSX command line using "kill -9 pid", and the process was still running
mini-2:~ prompt$ ps -ef | grep firefox
501 15087 183 0 0:00.00 ?? 0:00.00 (firefox-bin)
After this, I could not start firefox (as it said Firefox is already running) nor can I kill firefox (again).
What is going on? How can I fix this (besides logging of or restarting my machine) ?