How to gently kill Firefox process on Linux/OS X

Question

I\'m doing some automation with Firefox and although I can open Firefox window from shell, I\'m not able to terminate it properly. If I kill Firefox process with

Answer 1

How about

wmctrl -c "Mozilla Firefox"

?

Is it what you want?

NOTEs:

1. This command may need to be fired in same DISPLAY & probably same virtual desktop, on which your firefox is running.
2. Only first matching window will be closed. You may need to loop this command.