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Trying to start several firefox instances

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  • 1 has this problem
  • Last reply by andmagdo

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I am writing a C program, which needs to start several firefox windows. The problem is: I need to kill them later, so I need the process id. So I started each of them (via fork and exec) with the argument "-new-instance", but get the 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." when a firefox process was already running (because there is just one allowed, I guess).

Is there a way to fix this problem, or at least get the pid of the process firefox connects to if i don't start it with "-new-instance"? By the way: It just has to work on one computer, so I can adjust settings etc. System: Arch Linux (Manjaro)

Thanks for your help

All Replies (2)

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Does using the -no-remote command line option instead change the situation?

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Although I don't know what you are making, may I remind you that the killall command works, so maybe if all need to be killed, you can use that.