Windows users will not be able to authenticate with the ID card in the new version of Firefox (vers. 76.0).
A new version of Firefox was released 05.05.2020 where ID card authentication is not working properly. The Information System Authority (RIA) is aware of the problem and is working on developing a possible solution. If you already have Firefox version 76.0 installed on your computer, we recommend using Google Chrome, Microsoft Edge, or Mobile ID for authentication.