Mozilla Developer Rob Cambell has revealed that Firefox 4 is recieving a new DOM inspector, similar to what is found in other browsers, after it was removed from Firefox 3.
Currently, Firefox web developers use the Firebug add-on to achieve the same effect. Cambell has stated Mozilla is not out to “kill” the Firebug add-on, but to merely suplement it.
“Now every browser ships with a set of development tools. We didn’t feel that [the original] DOM Inspector was the right tool to include in the browser” wrote Cambell.
Early Firefox 4 builds that include the new, unfinished DOM inspector are available for download.