It's much easier to just block Facebook stuff with browser addons, and you can easily nuke every other tracker as well while you're at it.

As crazy as it sounds, I actually like the other trackers, because then I get more relevant ads. I'm also one of those crazy people that things adblock ruins the web (this opinion may be because I worked for a website that survived on ad revenue for a long time).

I'm sorry to be rude, but that strikes me as legitimately paranoid. Why do you care so much if Facebook knows that you visit sites other than Facebook?

I guess it depends on why someone uses Facebook. I (finally) got an account a while ago in order stay in contact with friends and former colleagues. My usecase of Facebook does not include me wanting Facebook to know everything I do.

Hence, Facebook lives in its own VirtualBox machine.