Apple added YubiKey support (https://nakedsecurity.sophos.com/2019/12/12/apple-ios-13-3-i...) for 2FA in Safari in 13.3 and they added better mouse support to Safari as well as other built in apps between major releases.
Firefox is losing market share and almost completely dependent on Google for its survival. If Firefox tries not to support something that the rest of the industry is supporting (like the web based DRM) the rest of the industry just yawns.
Apple added YubiKey support (https://nakedsecurity.sophos.com/2019/12/12/apple-ios-13-3-i...) for 2FA in Safari in 13.3 and they added better mouse support to Safari as well as other built in apps between major releases.
Firefox is losing market share and almost completely dependent on Google for its survival. If Firefox tries not to support something that the rest of the industry is supporting (like the web based DRM) the rest of the industry just yawns.