Nope. Nor would I ever use any of the bloated Norton, McAfee, etc crap. There are many free antivirus and firewall programs out there that are more effective, easier to use, and use less system resources than that load of junk.
My personal favs are AVG-free edtion for virus protection, and ZoneAlarm for firewall. There are others available, though, so feel free to do a little research. Both update seamlessly, without immediately requiring a restart. Unlike either of the versions of Norton or McAfee I have tried.
I highly encourage you to try using a different program suite!