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U2F devices work only with a secure HTTPS connection. If you want to use U2F devices - make sure that your instance using it. In another case, please contact your administrator.
Enabling U2F support in Mozilla Firefox
...
...
U2F devices work only with a secure HTTPS connection. If you want to use U2F devices - make sure that your instance using it. In another case, please contact your administrator.
Enabling U2F support in Mozilla Firefox
...