title: How to reset netscape.security.PrivilegeManager.enablePrivilege?
body: <p>At same point, I believe I've clicked the "Deny" button when the message box appeared in FireFox asking me if I wanted to allow a site a privilege using the </p>
  
  <pre><code>netscape.security.PrivilegeManager.enablePrivilege()
  </code></pre>
  
  <p>method. Now, I cannot find how to reset this so that the message box will start appearing again at this specific site. I've checked Tools -> Options and about:config, but nothing. Does anyone know how to reset this? Or is there any other reason that the message box simply will not show and automatically throw an exception?</p>