Firebug is a vital tool for web designers. Designers and developers access the tool right from their browser (as an add-on). It allows for a local manipulation of frontend code for websites, and ultimately works as a great research and troubleshooting tool.
Firebug 1.10 has just been released with an array of new features. The new features include:
Above: one of the new features of Firebug that web designers will love. Code syntax highlighting will make working with code in Firebug a breeze.