title: How to save token obtained via login to a specific Extension in Chrome
body: <p>I have a web application in which I authenticate using tokens. I'm developing a plugin for this apps which are used to save items from different pages to the database. But this requires fetching users' categories in the plugin so that they can choose a category while saving. This also requires the token obtained during login to be used in the plugin.</p>
  <p>So the question is basically, how can I save the token to be used in the plugin after I logged in my user into my web page?</p>