In my experience, the Webkit tools (particularly in Chrome and Iron) are ahead of Firebug, especially when trying to debug minimized JavaScript (pretty print is

In my experience, the Webkit tools (particularly in Chrome and Iron) are ahead of Firebug, especially when trying to debug minimized JavaScript (pretty print is included in the tool--in Firefox, you need an additional plugin). Firebug can get laggy when debugging large JS files, too.