Add a passkey built in, instead of using OS default

[Memelian4]

Hello, some websites and browsers seems to be unable to work with passkeys, and sadly Firefox is one of them. I use passkeys quite a lot, but I'm still on windows 10, so i can't properly use these passkeys that i have on my accounts. I was wondering if it'll be possible in the future for Firefox to implement a QR code passkey and physical key support for the future?

I've also used Linux and macOS and even there, it would be really helpful to actually implement that idea. I think macOS handles passkeys well (if Monterey or newer), but Linux... Yeah, that would be a good thing to implement.

That's mostly all. it's a small change, but a big need for some.

[kelimuttu]

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