I am slightly disappointed that this doesn't work in Firefox, despite the fact that I have an add-on[1] installed to add U2F support. Github for instance is able to detect U2F support and let me use it.
That said, I understand the lack of support since I am an extremely small niche, and this did prompt me to finally add 2FA to facebook (U2F and code generation from my Yubikey Neo)
That said, I understand the lack of support since I am an extremely small niche, and this did prompt me to finally add 2FA to facebook (U2F and code generation from my Yubikey Neo)
[1] https://addons.mozilla.org/en-US/firefox/addon/u2f-support-a...