Nice to see Firefox actually doing the work here, this is the kind of privacy-first move we need. Blocking weird fingerprinting vectors like fonts, cores, touch points and subtle GPU/math quirks is exactly where browsers should be spending their energy, and cutting trackability “by half” would be a big deal if the numbers hold up.

That said, I am annoyed Mozilla is still gatekeeping this behind Private Browsing and ETP Strict. If it truly improves everyone’s privacy with acceptable site compatibility, flip the switch by default. Also, show the data and methods openly and invite independent audits, because these headline numbers need context. Fingers crossed this pushes other browsers to stop pretending fingerprinting is fine so long as cookies are gone. If you care, enable Strict or use private sessions until they make this the default.