title: Limit Chrome Extension to certain URLs?
body: <p>Is there a way to limit a Chrome extension to only run on certain urls?</p>
  
  <p>Say I want the extension to run only if the domain is Amazon.com. I realize you can put a check at the top of the scripts, then execute the rest of the script only if the check matches.</p>
  
  <p>However, can you prevent the extension from running at all?</p>