title: How to create a bottom-docked panel with XUL in Firefox?
body: <p>For my addon, I would like to create a bottom-docked "panel" that will display information. An example of something like this would be Firefox's own Web Console panel that can be toggled under Web Developer Tools.</p>
  
  <p>I tried to dig through the code, but couldn't figure out how this was implemented. Could someone give me a a basic explanation of how to create this with XUL, or point me in the right direction?</p>