FireBug (Firefox Extension for Web Developers)

What do you get if you cross the DOM Inspector with the JavaScript console and a JavaScript interpreter? A very useful extension for debugging/analysing web pages in Firefox called FireBug. Features include (more details on each feature can be found on the site):

  • Log DOM Elements With Your Mouse
  • Log Objects From The Command Line
  • Log Objects From Your Web Page Scripts
  • XMLHttpRequest Spy
  • Contextual Error Display
  • Error Status Bar Indicator
  • Error Filtering

With the addition of CSS errors to the JavaScript console (which can't be filtered out), this is a very welcome extension with its error filtering.

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