#

Set the environment variables MOZ_NO_REMOTE and NO_EM_RESTART to 1.

The MOZ_NO_REMOTE environment variable allows you to run an instance of Firefox separately from any other instances of Firefox you have running.

The NO_EM_RESTART environment variable keeps Firefox attached to the terminal window after it starts and allows the browser to be terminated by typing Control-C in Firefox's terminal window.

Linux|Cygwin|Mac OS X

export MOZ_NO_REMOTE=1
export NO_EM_RESTART=1

Windows

set MOZ_NO_REMOTE=1
set NO_EM_RESTART=1