If you are really worried about privacy there are a few things you can do including:
Use the Adblock Plus extension for Firefox and use the
Easy Privacy list
as well as the Antisocial list
This list blocks the ever increasing social networking content on third-party sites.
Use a hosts
file to block the multitude of clicktrackers
If you want to do the same thing without having the hosts file slowdown, dnsmasq
offers similar functionality and it...