Some time a go I've configured access to the smart card in the Spanish id card in Firefox, and it work. But I'm recently trying to use again and it doesn't. I'm in a Debian 10 with the [[libpkcs11-dnie|libpkcs11-dnie]] installed (with its dependencies) and I've set it up in a firefox-beta. Is where I've added months a go the module (/usr/lib/libpkcs11-dnie.so), then I had logged in and saw the certificate in "Your Certificates". Since then many updates came but I didn't need again to use this card. I'm trying it now that firefox-beta is 82.0 and the "log in" button is never enabled. When I've tried with another firefox, for example the esr (78.3.0esr) coming with debian, I have to add this module as it wasn't there. I've clicked "Load" and fill the form with "module name" and "module filename" (the same file that I've mention before) and when I click 'ok', I receive an alert "Unable to add module". Same experience with firefox-stable (81.0.2) and with firefox-devel (82.0b9). I don't even know if the issue comes from firefox. Is there a way to debug further the origin of this alert message or why this is not being recognized by the application? Thanks