About this Collection
useful addons for developing other addons
8 Add-ons in this Collection
An interactive editor for XPath expressions.
Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.
Displays a menu item for switching the application locale.
Lets you take a peek at the files under the hood of your Firefox installation and profile...
Developer Assistant by Ted Mielczarek, Gavin Sharp, others
A suite of tools for developers.
Ever needed to restart Firefox after enabling or disabling an extension, switching to a new theme, or modifying configuration files (such as userChrome.css or user.js)?
This simple extension adds a "Restart Firefox" item to the "File" menu. You can ...