For a long time most developers relied on Firebug as their main development tool to edit web pages on Firefox. But the reality is that Firebug, understandably, is not being as actively developed as Chrome’s developer tools and they are starting to fall behind.
While I’ve moved from Firefox to Chrome as soon as it was released, I still used Firefox for a long time as my main development tool primarily due to Firebug. Since June this year, Chrome developer tools were dramatically improved, mainly in the user interaction of HTML and CSS editing. On top of that, it has (it always had) a much better design of the log of network transactions and resources than Firebug’s so it was a natural choice to completely shift to Chrome for all development.
Firefox will now try to regain web developers with the new built in tools, that look very interesting, specially the breadcrumb at the bottom with the ability to quickly select sibling elements.
You can install Firefox Aurora, the Firefox channel with the newest additions, enhancements and overall innovations, and try them today.