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Validates a page using the W3C RSS Validator.
A myriad of tools to assist with...
Finds who is on chatting on the website using...
SMALL extension that Loads extensions, one at a time, from folders (unpacked xpi files)
The BBComposer allows you to edit textarea contents by switching in a WYSIWYG mode with a right click on it. You can choose 4 content types : XHTML, BBCode, XBBCode and Wiki. Especially useful for CMS, Wiki and Forums. Returns valid and semantic...
This sidebar helps developers to test HitBox implementations on HTML pages and Flash content. ...
Accessibility toolbar enabling easy manipulation of web page display and text-to-speech output...
Sick of the huge ads at the top of ar15.com and ak47.net? Use this extension to suppress them. Future upgrades include suppression before they hit the...
Display the results of an XSLT 1.0 transformation (including on a currently loaded page), on a one-shot or Grease-monkey-like per-site basis
Finds the closest fragment ID or anchor for a selected location and copies it to the clipboard appended to the URI. If any text is selected, it also appends that to the clipboard.
One-click eBay tools providing useful information to the buyer including a map of where items are located, past feedback on similar items and seller history/statistics.
A simple calculator extension for Firefox.
Parses the URL and displays a dialog with parsed couples, allowing the user to change variables or path and open the newly compiled url in current/new tab.
A small, simple extension which prevents against phpMyAdmin's session timeouts.
CanImage is a HUB for images. It opens images from many different sources (webpage images, files, clipboard, screenshots), let you changes them with an image editor and push it to many different places (files, clipboard, file inputs, dataUri...).
Create and run cronjobs with FireFox. This extension will call any url, local or remote, in user defined times and intervals.
Foxy Detective No Restart
A straight-forward way to dig out information for any type of windows, even modal ones. Just Point-and-Wait.
Simple JS console