Signals generated by the use of an ad blocker can improve browser fingerprinting accuracy. This novel browser fingerprinting method, while oft-discussed as a theoretical source of entropy, has only just been added to FingerprintJS as of April 2021.
The FingerprintJS team has uncovered a scheme flooding vulnerability. We explain how the exploit works across four major desktop browsers and show why it's a threat to anonymous browsing.
To make an accurate browser fingerprint, you need to gather as many signals as possible. In this article, we go over some of the techniques used to generate signals that vary between site visitors enough to be useful for browser fingerprinting.