I have a kerberos token on my machine, and I followed instructions like: https://auth.docs.cern.ch/user-documentation/kerberos-authentication/ to allow firefox to trust a specific domain for Kerberos authentication. The change I made works fine for my Mac. However, when I try to authenticate within firefox on Linux (ArchLinux 5.10.15-arch1) it does not succeed. I suspect it is related to the fact that Firefox, there, is a flatpak and perhaps can't access the kerberos token? Is there a way around that?