Cannot login to sncf-connect.com

@librewolf Cannot login to sncf-connect.com

I'm using LibreWolf since a few days, and I love it ! But when I try to login to sncf-connect.com I get bloqued. I've added this domain to the exceptions, as well as monidentifiant.sncf. When I login, I get a captcha, and after solving it, I a bloqued... Am I missing an option to allow this website to work ? Thanks !