I was using some unofficial packages since installing java on my system is difficult so I used the first flatpak and the first docker image I found on google and neither of them shipped an included browser and it seemed like the way was to make firefox work with it but I could not work that out.

It's been too long for me to remember the exact details but if I couldn't work out how to make it run as a long time linux and p2p user, I can't see how the average user could.