I fixed it by commenting out the first line of /etc/apt/sources.list*: #deb cdrom:[Ubuntu 20.04 LTS _Focal Fossa_ - Beta amd64 (20200402)]/ focal main restricted
This fixes the apt bug and Netflix now also works in Firefox! * As suggested in the Ubuntu Podcast Chatter Telegram channel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1871679 Title: apt install libavcodec-extra asks for cdrom To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1871679/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs