chaoticsoul

Being a web developer myself, I have compiled a list of the most important Firefox addons which a Web Developer should have.

Here’s the list

1. FireBug

Probably the best Addon I have found yet.
You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page with this extension


2. Web Developer
   The Web Developer extension adds a menu and a toolbar to the browser with various web developer tools.



3. ColorZilla
   A great addon for web designers
   It can get the color of any point in a page, and copy it to the clipboard in various formats, which can later be used in designing softwares.
   
4. Greasemonkey
   Allows you to customize the way a webpage displays using small bits of JavaScript.
   
5. FireFTP
   It adds on an FTP client within Firefox, so you dont need any other independent software to upload via FTP.
   
6. User Agent Switcher
   Adds a menu and a toolbar button to switch the user agent of the browser.
   
7. Live HTTP Headers
   A must have for web developers when making scripts that interact with other websites.

Hope you liked it!