About this Collection
Add-ons for web development and extension development.
51 Add-ons in this Collection
A quick restartless magnifier to debug styles and web pages.
Adds toolbar button and context menus for invoking the DOM Inspector (DOMi) for either chrome or content elements.
Create and manage add-ons made from Greasemonkey and Scriptish user scripts
A simple add-on for extension testers, especially AMO editors and developers who plan to submit their add-ons to AMO.
Enables you to use external text editor with Scratchpad.
Simple Mozilla Firefox add-on that allows snippets in Scratchpad.
This wizard creates an XPI that rebrands Firefox, SeaMonkey or Thunderbird. You can change the brand name as well as the brand images and icons.