In my team, multiple people use same account on linux based server. If one user already opened firefox and others try to open firefox, it the throws the following error:
Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.
I need something like $ spyder --new-instance to create new instance of spyder.
OS : centOS 7
firefox version : Mozilla Firefox 68.4.1esr
From mozilla website I found command line to open new instance, not a new window in running instance, which allows multiple copies of application to be open at a time. It is
firefox -new-instance -P "Another Profile"
Then create new profile > start firefox.
Note: It is not available for Windows(bug 855899 for Windows has been fixed in 2019)