What you can do with FireBug

  • Debug javascript
  • Examine the DOM tree
  • Understand the CSS
  • Change the CSS in the browser to see its effect
  • See the layout of the page
  • Determine the dimensions of page elements
  • See the page components and understand the page load process
  • View the HTTP headers
  • Evaluate javascript expressions and commands interactively
  • Use debug write (console.debug) statements to issue debug data
  • Add breakpoints
  • Profile your page

If you use it, all the time, contribute. Ask your employer to support it.