title: Linking my website to a Google Chrome extension that has a Firefox alternative
body: <p>I want a link on my website to a Google Chrome extension that has a Firefox alternative.</p>
  
  <p>Questions:</p>
  
  <ol>
  <li>How do I link to a browser(Google Chrome/Firefox) plugin from a web-page?</li>
  <li>How do I decide which link to show based on users browser? In other words: when a person enters my web page using Firefox I want
  to display a link to Firefox plugin, if he's using Google Chrome -
  link to Google Chrome plugin.</li>
  </ol>