Mozilla launches new system to detect Firefox crypto drainer add-ons

Mozilla introduced an early detection system for Firefox’s add-on marketplace (AMO) that assigns risk profiles to submitted crypto wallet extensions, triggering automated alerts and human reviews to rapidly block malicious add-ons used in wallet-draining scams. The report describes how threat actors deploy fake wallet extensions to steal private keys and credentials, notes significant losses tied to such attacks, and urges users to install only official extensions from their wallet providers.