title: Publish chrome and firefox extension in private mode
body: <p>I created a browser extension for my coworkers that enhances the system we use daily but can't modify it.</p>
  <p>So far we've been using it locally. Everyone has a copy of the files on their own machine and everytime there's an update I have to notify everyone to manually update it.</p>
  <p>I'd like to publish it on the chrome and firefox stores but I would rather not make it public.</p>
  <p>Is there a way to publish it privately, so only the people with a link could access and download it ?</p>