Lightbeam es un plugin para firefox que te ayuda a ver quien te esta vigilando, trakeando y ver de forma interactiva las conexiones entre los datos que se rastrean…

Traking the trakers…

See who’s tracking you online: Lightbeam is a Firefox add-on that uses interactive visualizations to show you the first and third party sites you interact with on the Web. As you browse, Lightbeam reveals the full depth of the Web today, including parts that are not transparent to the average user.

https://www.mozilla.org/en-US/lightbeam/