I have had this extension for nearly six months, and it does its job with no hassle/extra lagging. Thank you!

EFF.org Rocks!

Very Good and Does a good Job

Privacy Badger is a project managed by the EFF. It improves privacy by blocking third party trackers and cookies. It also doesn't get in the way because it whitelists domains that promise not to track you and can also partially block something to keep it functional.

very good

Excellent app add on for Firefox!!!