Mozilla’s new version of Firefox – version 72 – will block fingerprints automatically. The browser already includes fingerprint blocking through its Enhanced Tracking Protection feature, but starting from January of next year it will be enabled by default.
Fingerprinting is an exceptionally intrusive way advertisers track their ad conversions.
A device is assigned a “fingerprint,” a unique identifier that uses publicly available information such as location, installed extensions, language, and installed fonts, among other things.
A fingerprinted device can be tracked in its internet activities very efficiently and reliably, linking ad clicks to app downloads and providing advertisers with valuable data.