Nevermind, I should have skimmed through the documentation first. I found /rw/config/qubes-firewall-user-script case closed.
-- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/5815a5ff-75cf-4540-9f80-045dce0f9f43%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.