Lightbeam (software)

Lightbeam
Initial release2011
Stable release
3.3.0  / 30 September 2025
TypeMozilla extension
LicenseMPL 2.0
Websitehttps://lightbeam.chikl.de
Repositoryhttps://codeberg.org/chikl/Lightbeam

Lightbeam (called Collusion in its experimental version) was an add-on for Firefox that displays third party tracking cookies placed on the user's computer while visiting various websites. It displays a graph of the interactions and connections of sites visited and the tracking sites to which they provide information.