Ghostery

Ghostery is a free and open-source privacy and security-related browser extension and mobile browser application. Since February 2017, it has been owned by the German company Cliqz International GmbH (formerly owned by Evidon, Inc., which was previously called Ghostery, Inc. and the Better Advertising Project). The code was originally developed by David Cancel and associates. Ghostery enables its users to detect and control JavaScript "tags" and "trackers" to remove JavaScript bugs and beacons that are embedded in many web pages which allow for the collection of a user's browsing habits via HTTP cookies, as well as participating in more sophisticated forms of tracking such as canvas fingerprinting. As of 2026, Ghostery is available for Mozilla Firefox, Google Chrome, Brave, Microsoft Edge, Opera, Vivaldi, Safari, iOS, Android, and Firefox for Android. Additionally, Ghostery's privacy team creates profiles of page elements and companies for educational purposes.

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