On a similar note, Azure only supports U2F with yubikey on select Windows / macOS environments, but Firefox ESR on Debian is not supported at all. Every other service I use supports U2F just fine on Linux, but Microsoft wants Linux users to live slightly more insecure.
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On a similar note, Azure only supports U2F with yubikey on select Windows / macOS environments, but Firefox ESR on Debian is not supported at all. Every other service I use supports U2F just fine on Linux, but Microsoft wants Linux users to live slightly more insecure.
https://bugzilla.mozilla.org/show_bug.cgi?id=1530370
Afaict, the bug is that Firefox doesn’t support FIDO2. AzureAD also doesn’t support U2F, which is unsurprising.