Comment 11 for bug 1989976

(In reply to Mildred Ki'Lya from comment #7)
> It seems Firefox implemented passkeys for Windows and MacOS but lack support for Linux as shown in https://www.passkeys.io/compatible-devices
>
> I don't quite understand what is so platform specific. Of course, integration in the native platform password manager is nice but not mandatory. Firefox already stores its passwords and can sync them with Firefox Sync. What's so different with passkeys and what's the status of this feature?
>
> As a web developer if I can provide passkeys as the primary login method, this would be a great step forward, but it'd be better to have full browser compatibility.

PassKeys.io is really saying there is a workaround when they write ["Phone passkeys (QR code flow) and physical security keys only"](https://www.passkeys.io/compatible-devices). The private part of the passkey should never leave the device it was created on, so by design, it should not sync anywhere else. However, if you have a passkey on your cellphone or YubiKey but want to authenticate on your Linux desktop, then Bluetooth ( or a USB cable) connected to your desktop should offer a workaround. It worked for me before but not sure which Linux PC and which web browser on which Linux machine. If your Linux desktop has supported TPM hardware, then i do not see why it would not work. US DOD does it.