This is a list of awesome Add-ons for Firefox Comment below to add your’s to the list:
Ad Block Plus will remove annoying advertisements as well as check your site for what may be blocked by ad-blockers. You can even selectively block images or items on a particular site.
AddThis is a plugin that allows you to quickly share links that are interesting to you with a simple click and comment to Facebook, Twitter and more.
Scribefire allows you to write articles, research information and keep it all organised in a tidy wsiwyg editor.
Firebug Is a handy tool that lets you break down how your html/php/css scripting is working and highlights as you drill down to find your problem.
Colorzilla is a color selection tool, if you ever wanted to know exactly what color orange the firefox logo is
Grease Monkey is a great scripting tool, allowing to to to almost anything, redirect video to a particular browser etc. Very useful on all platforms.
FireFtp is a FTP/SFTP integration for firefox allowing you to quickly index and upload files to the sites you are working on.