"G. Morgan" wrote:

> http://www.ghostery.com/faq

See also:

https://addons.mozilla.org/en-US/firefox/addon/noface/

================================
About this Add-on

This add-on intercepts connections going to Facebook servers (currently
facebook.com and fbcdn.net and all subdomains) and blocks them (by
returning Host Not Found, so it's as if those servers disappeared from
DNS). The purpose of this is to prevent Facebook's servers from being
pinged at all as you surf the Web, thereby allowing them to track your
browsing (via Referrer headers).

It is intended to complement tracker-blockers like Ghostery, which are
great but --> don't block all of Facebook's tools. <--

If you have this add-on installed, Facebook will completely disappear
from your browsing experience, except for seeing some 'The server could
not be found' messages in iframes.

For more complete blocking, see RequestPolicy to block all cross-site
requests. This add-on is for when you don't want to take that drastic of
an action.

https://addons.mozilla.org/en-US/fir...requestpolicy/
==================================