anchor.diff:  	apt-transport-https \
   	ca-certificates \
     gnupg \
  -	--no-install-recommends \
  -  && apt-get update && apt-get install -y \
   	firefox \
   	--no-install-recommends \
   	&& apt-get purge --auto-remove -y curl gnupg \
   	&& rm -rf /var/lib/apt/lists/*
  +
  +RUN mkdir -p /etc/firefox/
  +RUN echo '\
  +    lockPref("devtools.debugger.force-local", false);\n\
  +    lockPref("devtools.debugger.remote-enabled", true);\n'\
  +		>> /etc/firefox/syspref.js
   
   # Add firefox as a user
   RUN groupadd -r firefox && useradd -r -g firefox -G audio,video firefox \
  
positive.code: 
  # Autorun chrome headless with no GPU
  ENTRYPOINT [ "firefox" ]
  CMD [ "--start-debugger-server=6000", "-headless" ]
  
negative.code: FROM debian:sid
  LABEL name="firefox-headless" \
  			maintainer="Justin Ribeiro <justin@justinribeiro.com>" \
  			version="1.0" \
  			description="Firefox Headless in a container"
  
  # Install deps + add Chrome Stable + purge all the things
  