Adds an about:addons-memory page that details add-on memory usage
Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.
Install Browser Extensions straight from GitHub Repositories
Reading Firefox internal pages below content.
+ Error Console
+ Restore Session
+ Troubleshooting Information
+ View Cookies
+ View Downloads
+ Manage About:Config…
+ Manage Add-ons…
+ Manage Library…
+ Manage Search Engines…
Inlays a simple and quick access profile manager into the new panel-based main menu. Designed for the Australis update to Firefox.
Create and manage add-ons made from Greasemonkey and Scriptish user scripts
Addon designed for in browser editing of Simple Storage for Addons.
IDE for FireFox plug-in developers and business analysts who create User Interface mock-ups. A WYSIWYG XUL editor
Logs HTTP requests (referrer, HTTP method and URL) to a text file for security and auditing reasons.
Automatically sets all preferences for Firefox addon developer production environment.
A Firefox Developer Tool to visually analyze various events like Network Calls, DOM Events, Garbage/Cycle Collection, etc.
Hide your own GitHub contribution graph so you don't fret over your contribution streak or how you compare to prolific GitHub users.