Re:How you can contribute to Firefox 57 success
by r3bl on Saturday September 02, 2017 @04:31PM
(#15158043)
So, one stable release without something like a two-factor authentication method. Since the addon will break and no official support will be released on time, there's no other choice but to use Chrome/Chromium to use Yubikeys.
[1]: https://addons.mozilla.org/en-US/firefox/addon/u2f-support-a...