Ghostery is a free add-on for Firefox that can help you detect invisible web tracking via web-tags, web bugs, pixels, beacons, and all sorts of ad networks powered by your personal browsing data. Ghostery’s comprehensive add-on allows you to see each company’s tracking behavior with links to their individual privacy policy as well as relevant opt-out options for each company. There’s also an easy way to block any unwanted tracking:

At Ghostery, we believe in enabling informed decisions about your control over your online privacy. The more you learn about the companies trading your online behavioral data, the better you can make decisions about how to control your exposure to those companies.

Ghostery allows zero-tolerance blocking of anything ad related, complete (visible) open communication with ad companies, or countless measures in between – determined by you, the informed web user.


Users can also opt into Gostery’s Ghostrank library of detectable trackers through an anonymous data-collection for Evidon, a for-profit company that sells Ghostrank data to companies who wants to market to individuals with more transparent privacy policies. There’s no sign-up or registration required.