As part of the broader Firefox 66 release, this version includes:
Allows users to authenticate on websites using facial recognition or fingerprints on Windows 10. System Requirements Firefox 66.0.5 System Requirements Mozilla Firefox Quantum v66.0.5
Mozilla Firefox Quantum v66.0.5, released on May 7, 2019, was a critical point update primarily focused on resolving a significant bug that caused browser extensions to be disabled. As part of the broader Firefox 66 release,
Automatically prevents websites from playing sound-enabled media. released on May 7