Open research, stronger privacy: Making Firefox users harder to fingerprint

Firefox is implementing new protections to make users harder to fingerprint by reducing distinguishing browser and device details that trackers use to identify people across websites without cookies. Research from nearly 25 million Firefox users found that protecting just a handful of key browser features significantly weakens popular fingerprinting techniques, enabling Firefox to focus protections where they have the greatest impact. Mozilla is publishing its findings openly to help the broader web security community strengthen privacy defenses against this tracking method.