Firefox in Docker

Dockerfile

FROM ubuntu:16.04
MAINTAINER linktohack@gmail.com
RUN apt-get update && \
  apt-get install -y x11vnc xvfb dwm firefox && \
  rm -rf /var/lib/apt/lists/*
RUN mkdir ~/.vnc && \
  x11vnc -storepasswd 1234 ~/.vnc/passwd && \
  bash -c 'echo "#!/bin/bash" > /entrypoint.sh' && \
  bash -c 'echo "Xvfb :0 -screen 0 1024x768x16 &" >> /entrypoint.sh' && \
  bash -c 'echo "sleep 1" >> /entrypoint.sh' && \
  bash -c 'echo "export DISPLAY=:0" >> /entrypoint.sh' && \
  bash -c 'echo "x11vnc -forever -usepw &" >> /entrypoint.sh' && \
  bash -c 'echo "dwm &" >> /entrypoint.sh' && \
  bash -c 'echo "firefox" >> /entrypoint.sh' && \
  chmod +x /entrypoint.sh
CMD ["/entrypoint.sh"]