🌈 Javascript color conversion and manipulation library

DEPRECATED - Gaia is a HTML5-based Phone UI for the Boot 2 Gecko Project. NOTE: For details of what branches are used for what releases, see

A very small javascript library that allows you to create browser specific CSS to be merged into your normal classes. No more hacks or mischievous code in your CSS code.

Orignal unmaintained version of the Lightbeam extension. See lightbeam-we for the new one which works in modern versions of Firefox.

The simple async toolkit - Promises (Futures), Subscriptions, and the like

DEPRECATED project - Check the Marionette framework instead

A GitHub Action to convert markdown files into static HTML / CSS, PDF, PowerPoint document, and image(s) by @marp-team/marp-cli.

CLI to generate XML sitemaps for static sites from local filesystem

Dictionaries using ECMAScript proxies

Windows taskbar icon overlay extension. Code under the Mozilla tri-license (MPL/GPL/LGPL).

A very small javascript library that allows you to create browser specific CSS to be merged into your normal classes. No more hacks or mischievous code in your CSS code.

An add-on and web app for visualizing cookie-laden HTTP requests between websites in real time.

Thunderbird about:support

A landing page to make finding relevant bugs easier for new Mozilla contributors.

Gaia is a HTML5-based Phone UI for the Boot 2 Gecko Project

Mozilla UI automation tool