Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
RSSify the Web!
Pro Web Surfer allows you to replace advertisements on web pages with your own images, or images created by others.
This sidebar helps developers to test HitBox implementations on HTML pages and Flash content. ...
This extension adds a context menu item for selected text that provides more information (from the Unicode database) about the characters...
Have you heard of WindizUpdate? It is designed to provide an alternative to Windows Update which will run in Firefox, Netscape or Opera. I guess you know what this means, the final obstacle from being 100% IE free has just been knocked down, you...
Allows you to open a link without sending the HTTP referer header.
RightLynx displays a Lynx view of a web page via right-click or Tool menu...
*UPDATE - June 9, 2010: The development of this add-on is suspended for lack of time. No new update is planned.
This is a cut down version of Nightly Tester Tools by Mossop, which is 77.6 KB. I've only included the "copy build id" and "build id in titlebar"...
Adds the following "about:" options to the Help menu
Plays a sound when a pop-up window is blocked. You can also configure a sound for other events such as clicking on a link or downloading a file. You can specify your own sounds in the configuration...
Lost in you browsing? Followed a looong serie of links?...
Github Time Travel No Restart
Browse commits by date on Github
Go2 Domain Root No Restart
Go2 Domain Root is an ultra simple plugin for quickly navigating from an URL within in a domain to its root.
ConnectMe Deskshare No Restart
Allows users to share their screen to other users
Lets you customize the maximum tabs undo and maximum windows undo session preferences.
This is an extension to validate online HTML pages using W3C validation service.
Tool for Google disavow backlinks tool! No Restart
This tool will help you to check all backlinks to your website and generate right file to disavow backlinks. Just one click per one page. This tool will save your time.
Extension for code analysis page (meta tags) and display the menu to work on them.
Pterosaur No Restart
Use real Vim with your vimrc and Vim plugins to edit Firefox text without opening up a seperate window.