Firefox is already running with -no

I found a solution to keep the -no-remote and execute remote command using Remote Control addon.

The -no-remote option is used for running multiple Firefox profiles at the same time . You are getting the Firefox is already running message because you are trying to open a second Firefox instance with the same profile. where profile_path is an abs

Another way to start multiple instances of FF portable is to add AllowMultipleInstances=true to the FirefoxPortable.ini in the same folder as the .exe.

The -no-remote switch with the -P for Profilemanager switch is so you can start a second instance of Firefox. You cannot start another instance ...

You can add -no-remote to the command line to open another Firefox instance with its own profile and run multiple Firefox instances ...

Running firefox.exe with parameter -no-remote used to open a new instance. Since a couple of updates back this is no longer the case.

-no-remote. Do not accept or send remote commands. Implies -new-instance . firefox -no-remote -P Another Profile. Note: Since Firefox 9 ... Command line options · Using command line options · User profile · Browser

'No-remote' means don't talk to an existing Firefox, start a new instance. To be clear: on platforms where the -remote option doesn't work, -no-remote is ... history of remote control · The birth of -no-remote · The changing implementation.

The -no-remote makes Firefox run as a different process, where as not using it makes it the same process.

I'm noticing since recently that I can now turn on multiple instances of a profile even if I have -no-remote enabled.