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Most likely not. There had been a U2F API which later on had been superseded by WebAuthn (which internally uses the U2F protocol) and which is now shut down.
by dathinab 5y ago
Most likely not.
There had been a U2F API which later on had been superseded by WebAuthn (which internally uses the U2F protocol) and which is now shut down.
There is a good chance all your services are using WebAuthn.
I'm not sure but I think Firefox never supported the API which is now deprecated.