Solved by using dnfdragora in the fc38 template.
removed firefox with dnf, and manually remove firefox from /usr/lib64/ using sudo rm -rf. Did this in ALL fedora based app VM’s. And doing sudo dnf clean all in the template, the services and the app VM’s including default-dvm. Really everywhere. All of this untill firefox is completely removed in everything based on Fedora.
Say NO to every update to Firefox 118. When it is really gone, reboot. Go to dnfdragora and install firefox 111. That firefox works normally.