title: how to use local javascript files to test on live site using firebug (or Chrome)?
body: <p>I've got some custom JS that i'm looking to deploy on a live site, but I want to test it out first.</p>
  
  <p>I'm a third-party consultant to the target site managers, and am not part of their build process, so I can't deploy in their test environments. Since it's a DOM traversal library, it's pretty specific.</p>
  
  <p>I was wondering if anyone knew how to get my local javascript files to auto-insert for a particular domain or host.</p>
  
  <p>Thanks!</p>