None of these will protect you if you're not using Facebook safely, though.
For starters, be careful what you post and what you look at on Facebook. Never post your full date of birth, address, phone number or any other revealing things about your life. Make sure your friends aren't posting that information, as well.
Speaking of your Facebook friends, don't assume everything they post is safe. They could be a victim of a scam or could have been duped. If you see a questionable post by them, ask them if they posted it. They may not even know it's there.