in reply to
opening a window on another computer
This is not a Perl question (at least I don't think so). Since you are using Linux you will find that X Windows is your friend. Lets assume that you have the machines 192.168.1.100 to run from and 192.168.1.200 to display on, first allow the other machine to open windows on the 192.168.1.200 one by issuing the following command (on 192.168.1.200)
xhost + 192.168.1.100
Then launch the browser with:
iceweasel -display 192.168.1.200:0 -new-window 'http://www.google.fr/'