Useful Mozilla Firefox Add-ons/Extensions for Developers
Here is a list of useful Mozilla Firefox Add-ons :
2) Web Developer
The Web Developer extension adds a menu and a toolbar with various web developer tools.
View Internet Explore Tab in Firefox . This is a very nice addon to check compatibility of Internet Explorer in Firefox
YSlow analyzes web pages and why they’re slow based on Yahoo!’s rules for high performance web sites.
HttpFox monitors and analyzes all incoming and outgoing HTTP traffic between the browser and the web servers.