The Web Developer extension adds various web developer tools to the browser.
FireFTP is a free, secure, cross-platform FTP/SFTP client for Mozilla Firefox which provides easy and intuitive access to FTP/SFTP servers.
Check out my new project, FireSSH!
Adds ClickOnce support and the ability to report installed .NET versions to the web server.
YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.
Australian English Dictionary for Mozilla applications.
Firecookie is an extension for Firebug that makes possible to view and manage cookies in your browser
Firecookie is part of Firebug since Firebug 1.10
Adds "Restart Firefox" menuitem to "File", and a toolbar button for easy restarting...
Collections are groups of related add-ons that anyone can create and share.Explore Collections