Wednesday, 26 June 2019

linux - Start multiple instances of Firefox


How can I have multiple independent instances of Mozilla Firefox 3.5 on the same X server, but started from different user accounts (consequently, different profiles)?


Limited success was only with Xephyr :1, DISPLAY=:1 /usr/local/bin/firefox, but Xephyr has no Cygwin/X's "rootless" mode so it's not comfortable (see other question).


The idea is to have one Firefox instance for various "Serious Business" things and the other for regular browsing with dozens of add-ons securely isolated.



Answer



In fact, you don't even need multiple user accounts to accomplish this. You can execute several Firefox instances inside the same user account using the no-remote argument. The command line arguments are documented at http://kb.mozillazine.org/Command_line_arguments


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