title: Debugging extension code in firefox (javascript debugger/venkman)
body: <p>I'm currently working on a simple extension for Firefox.  Now I would like to be able to issue some commands in a console in the extensions context.</p>
  
  <p>I have installed the Javascript Debugger addon (venkman) but following the instructions:</p>
  
  <ul>
  <li>uncheck "Exclude Application Files"</li>
  <li>choose file and right-click "Set as Evaluation Object"</li>
  </ul>
  
  <p>never sets the context, I always end up (or rather stay) in the venkman.xul context.</p>
  
  <p>I would switch to another debugger, but so far had no luck with chromebug either:</p>
  
  <ul>
  <li>installed chromebug 1.08a2 and matching firebug</li>
  <li>started firefox with -chromebug -P dev (as a seperate 'firefox' for development)</li>
  </ul>
  
  <p>then chromebug on its own window doesn't let me choose a context, in fact it doesn't even show ANY context, all panels are deactivated.</p>
  
  <p>I really don't have any idea where to look any more and would love to have a solution.
  For now I don't even need all the 'fancy' debugger stuff like setting breakpoints, just need to issue commands at chrome level.</p>