Just today someone posted that they're about to get U2F in the main browser:

https://bugzilla.mozilla.org/show_bug.cgi?id=1245527

Actually, here's the U2F patch https://bugzilla.mozilla.org/show_bug.cgi?id=1388843

Side question, where are you using U2F?

I love the principle, but I can't use it with AWS, I can't use it with my bank, I can't use it with my domain registrar, and I can't use it with Office 365.

That's 0/4 of the high priority targets for me.

http://www.dongleauth.info/ lists U2F support status for many websites.

That's actually pretty depressing.

Under "Cloud Computing", ONLY GCP has support.

Under "security" vendors, no one does. "Payment" vendors again only list Google, and none of the domain registrars do.

In fact the most positive field is "social networks", with three separate ticks.

That is my understanding as well. I haven't been able to get my U2F working on recent Firefox builds. It's such a shame because I really want to use U2F instead of an authenticator app. I have like 20 different sites in there and finding the right number always takes me a minute or two.

Also Google Hangouts and Meet do not work.

Google literally checks for Chrome >_<

On GitHub, U2F works with the Firefox addon https://addons.mozilla.org/en-US/firefox/addon/u2f-support-a...

meet worked well for me the other day on Firefox Nightly (57)

The current plan has U2F shipping as soon as Firefox 57.