The Firestarter init script also fails for me on Dapper, and I'm not using network manager. If I run the script later after the system has booted, it seems to work fine.
-- Firestarter init fails on system boot when NetworkManager is used https://launchpad.net/bugs/42759 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs