I really wish Facebook's Anonymous Login would make it out of beta so this wouldn't be an issue: https://developers.facebook.com/products/anonymous-login/

still facebook will know where you have been. "Anonymous" and "Facebook" do not really fit together ;)

They already do. They have Like buttons everywhere on the web.

But Facebook does have a good security track record. This random website does not. I don't trust them with any more information than needed. In this case, that is only a single anonymized token.

Don't you still need a facebook login for that?

A site knowing my facebook account is a small issue, facebook knowing a visited that site is the big one.

There is a good chance that Facebook already knows you visited a particular site because that site is already serving Facebook content (via a like button, for example).

This is exactly why I use a different browser for Facebook than any other web browsing. As far as they are concerned, the only site I ever visit is Facebook.

Same with Google properties. I only use Chrome to visit Google properties.

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.

> that site is already serving Facebook content

  $ ping facebook.com
  connect: Invalid argument

Not so much, no.

Nope, I use browser addons to protect my privacy.

I like this enough that it prompted me to whittle my FB account down to nothing except a login provider for things like this.