title: javascript break on first line
body: <p>I'm currently using Firebug to debug web applications.</p>
  
  <p>Typically, when we would debug an application, we must follow theses steps:</p>
  
  <ol>
  <li>Find the relevant code in the debugger's code view pane.</li>
  <li>Set a breakpoint where we think interesting things may occur.</li>
  <li>Reload the page in the browser OR click on a button (or other component) which is controlled by JavaScript.</li>
  </ol>
  
  <p>My question: is there a way to tell the debugger to break on the next JavaScript line to be executed ?</p>
  
  <p>In other words: I load my page, I set an option in my debugger, I click on a button (which is controlled by JavaScript) and my debugger will break on the line which is executed (the one who catches the button click).</p>
  
  <p>Typically, in an application with multiple scripts where is is difficult to find where the interesting thing is.</p>
  
  <p>Thanks in advance</p>