title: Is it possible to open firefox browser from robot framework using selenium webdriver on linux in non GUI mode
body: <p>I want to open firefox browser on linux using selenium webdriver in non GUI mode. 
  Note i don't have a internet connection on server.</p>
  
  <p>I tried this command to open firefox </p>
  
  <pre><code>firefox &amp;
  </code></pre>
  
  <p>and get this error </p>
  
  <pre><code>Error: no display specified
  </code></pre>