Being on Farcebook is about the opposite of a computer being locked down.
But I goofed. You did say FB ;)
I completely understand about FB and know that *I* am the Product, I have maybe 1-2 ‘spyware’ hits each month. My Firewall and timed data cleanses both do a good job.
I can’t remember the last time I had a pop-up or anything of that nature.