Manages the Remote XUL whitelist to allow websites and local files to load XUL content.
For extension developers: allows automatically adding or updating browser extensions, e.g. with command line tools.
Pretty-prints JSON content in the browser for easy, unobtrusive viewing.
Easiest way to Add and Manage Custom User Styles in Firefox.
Add, Edit, enable, disable and delete in-numerous User Style Sheets to redesign the Firefox and the Web.
Install Browser Extensions straight from GitHub Repositories
Foundstone HTML5 Local Storage Explorer allows for viewing, modifying and deleting of data items stored in the browser's LocalStorage. LocalStorage is a client side storage technology introduced in HTML5.
A suite of tools for developers.
CSSsir is easy and handy tool which allows you to generate cross-browser code for main CSS- rules in a few clicks.
This CSS3 generator will be useful not only for web-masters and designers but also for common users.
Markdown document viewer.
Allows to visualize formatted markdown documents in browser.
A quick restartless magnifier to debug styles and web pages.
Create and manage add-ons made from Greasemonkey and Scriptish user scripts