Firefox only: If you're a web developer, there's one Firefox extension that you should without question be using, and that's Firebug. The extensive web development toolbox just updated to version 1.5, ...

The Firebug web development tool, an open source add-on to the Firefox browser, is being discontinued after 12 years, replaced by Firefox Developer Tools. Firebug will be dropped with next month’s ...

Firebug, the developer tool for debugging JavaScript, tweaking CSS, and inspecting network traffic, has announced a major new release -- Firebug 1.5. The latest release of Firebug improves the ...

The popular Firefox web development extension Firebug does some pretty cool stuff out of the box: Debug JavaScript, tweak the CSS, and see all the network traffic. Firebug extensions are a sort of ...

For web developers, and especially front-end coders, the Firefox extension Firebug by Facebook’s Joe Hewitt is a killer app and major time saver. It lets you deconstruct the webpage currently loaded ...