I didn't switch to Chrome at all either, and I am a web developer too. I liked the Firebug for web development, and the built-in dev tools that came later was

I didn't switch to Chrome at all either, and I am a web developer too. I liked the Firebug for web development, and the built-in dev tools that came later was good for me too. Sometimes even better than Chrome's. In a comparison today, Firefox dev tools still are better with a nice profiler, font tab, CSS layout helper, etc. The only few things I use Chrome's dev tools are for their CSS/JS code coverage tools and accessiblity tester.