This tool reveals and visualizes who's following and monitoring your web behavior instantly.

A new Firefox extension called Collusion allows users to visualize trackers as they browse the web. A lot of sites contain a form of a tracker that can follow and record your browsing habits. Most trackers are harmless, but some of them do collect your personal data and track your online behavior for advertising purposes. Collusion updates its chart in real-time so the more websites you visit, the more dots appear on the page to indicate that a tracker is following you.

Collusion was developed by Atul Varma, an in-house engineer at Firefox. Ryan Merkley, COO at Mozilla, explains that:

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