xhost +

docker run --rm -it -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=$DISPLAY -h $HOSTNAME -v $HOME/.Xauthority:/home/bastian/.Xauthority gazebo_firefox

docker run --rm --device=/dev/dri:/dev/dri -it -v /tmp/.X11-unix:/tmp/.X11-unix -e DISPLAY=$DISPLAY -h $HOSTNAME -v $HOME/.Xauthority:/home/bastian/.Xauthority gazebo_firefox
--device=/dev/dri:/dev/dri