Properly configured, Firefox is ultimate tool for the development websites you can access directly to the page that you are working so that the style of the page, in real time, or even change debugging JavaScript.
Installing all these development tools for Firefox browser is very serious, you should create a new profile for Firefox.
You can create separate profiler, with profile by creating a new connection with these topics, instead WebDev with your profile. There is also a detailed explanation of how to proceed.
Firefox.exe P-without remote WebDev
When now that you have configured Firefox with a profile of development for the Web, we take a look at the extensions that we can use to make Firefox in the last Web development tool.
These are all extensions, which I conducted on a regular basis for development.
Firebugs
Fire devil is the most powerful extension for debugging JavaScript, and CSS display html. You can change the dynamics and changes in the CSS code, and use it to debug the code Ajax. It is really the best coverage.
