title: How to use Firebug's debugger functions?
body: <p>I don't have an experience with any debugger tools geared towards my language, but I recently found some videos showcasing Firebug.</p>
  
  <p>I'm now using Firebug on a script in which I included an error.</p>
  
  <p>My current understanding is:</p>
  
  <ul>
  <li>I can set a breakpoint, which is shown as a red circle.</li>
  <li>Firebug stops at the breakpoint and gives me 4 options (Continue, Step Into, Step Over and Step Out).</li>
  </ul>
  
  <p>But I don't understand:</p>
  
  <ul>
  <li>What the difference is between the 4 options: </li>
  </ul>
  
  <p><code>Continue</code>, <code>Step Into</code>, <code>Step Over</code> and <code>Step Out</code>?</p>
  
  <p>To me, Step Over is sometimes similar to Step Into... I could be wrong here.</p>
  
  <p>I would be grateful if you could explain the differences of the 4 options, or a link to a more in depth explanation on these options.</p>