Mozilla Corporation
Fuelling the movement for a healthy open internet
Collective -
https://opencollective.com/mozilla
- Website: https://mozilla.org
- Code: https://github.com/mozilla
github.com/mozilla/readability
A standalone version of the readability lib
Stars: 10,404 - Last synced: 13 Jan 2026
github.com/mozilla/TTS
:robot: :speech_balloon: Deep learning for Text to Speech (Discussion forum: https://discourse.mozilla.org/c/tts)
Stars: 9,931 - Last synced: 12 Jan 2026
github.com/mozilla/nunjucks
A powerful templating engine with inheritance, asynchronous control, and more (jinja2 inspired)
Stars: 8,757 - Last synced: 08 Jan 2026
github.com/mozilla/sccache
Sccache is a ccache-like tool. It is used as a compiler wrapper and avoids compilation when possible. Sccache has the capability to utilize caching in remote storage environments, including various cloud storage options, or alternatively, in local storage.
Stars: 6,658 - Last synced: 10 Jan 2026
github.com/mozilla/Fira
Mozilla's new typeface, used in Firefox OS
Stars: 5,123 - Last synced: 09 Jan 2026
github.com/mozilla/rhino
Rhino is an open-source implementation of JavaScript written entirely in Java
Stars: 4,516 - Last synced: 09 Jan 2026
github.com/mozilla/uniffi-rs
a multi-language bindings generator for rust
Stars: 3,864 - Last synced: 11 Jan 2026
github.com/mozilla/source-map
Consume and generate source maps.
Stars: 3,655 - Last synced: 13 Jan 2026
github.com/mozilla/web-ext
A command line tool to help build, run, and test web extensions
Stars: 2,989 - Last synced: 13 Jan 2026
github.com/mozilla/webextension-polyfill
A lightweight polyfill library for Promise-based WebExtension APIs in Chrome
Stars: 2,953 - Last synced: 09 Jan 2026
github.com/mozilla/multi-account-containers
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
Stars: 2,915 - Last synced: 09 Jan 2026
github.com/mozilla/cbindgen
A project for generating C bindings from Rust code
Stars: 2,720 - Last synced: 09 Jan 2026
github.com/mozilla/bleach
Bleach is an allowed-list-based HTML sanitizing library that escapes or strips markup and attributes
Stars: 2,712 - Last synced: 08 Jan 2026
github.com/mozilla/node-convict
Featureful configuration management library for Node.js
Stars: 2,367 - Last synced: 08 Jan 2026
github.com/Hubs-Foundation/hubs
Duck-themed multi-user virtual spaces in WebVR. Built with A-Frame.
Stars: 2,183 - Last synced: 09 Jan 2026
github.com/mozilla/neqo
Neqo, the Mozilla Firefox implementation of QUIC in Rust
Stars: 2,030 - Last synced: 10 Jan 2026
github.com/mozilla/cipherscan
A very simple way to find out which SSL ciphersuites are supported by a target.
Stars: 1,983 - Last synced: 09 Jan 2026
github.com/mozilla/fathom
A framework for extracting meaning from web pages
Stars: 1,972 - Last synced: 09 Jan 2026
github.com/mozilla/task.js
Beautiful concurrency for JavaScript
Stars: 1,631 - Last synced: 12 Jan 2026
github.com/mozilla/fx-private-relay
Keep your email safe from hackers and trackers. Make an email alias with 1 click, and keep your address to yourself.
Stars: 1,630 - Last synced: 11 Jan 2026
github.com/mozilla/bedrock
Making mozilla.org awesome, one pebble at a time
Stars: 1,293 - Last synced: 11 Jan 2026
github.com/mozilla/grcov
Rust tool to collect and aggregate code coverage data for multiple source files
Stars: 1,284 - Last synced: 09 Jan 2026
github.com/mozilla/policy-templates
Policy Templates for Firefox
Stars: 1,213 - Last synced: 09 Jan 2026
github.com/mozilla/contain-facebook
Facebook Container isolates your Facebook activity from the rest of your web activity in order to prevent Facebook from tracking you outside of the Facebook website via third party cookies.
Stars: 1,045 - Last synced: 09 Jan 2026
github.com/mozilla/inclusion
Our repository for Diversity, Equity and Inclusion work at Mozilla
Stars: 954 - Last synced: 08 Jan 2026
github.com/mozilla/addons-server
🕶 addons.mozilla.org Django app and API 🎉
Stars: 881 - Last synced: 11 Jan 2026
github.com/mozilla/DeepSpeech-examples
Examples of how to use or integrate DeepSpeech
Stars: 854 - Last synced: 09 Jan 2026
github.com/mozilla/blurts-server
Mozilla Monitor arms you with tools to keep your personal information safe. Find out what hackers already know about you and learn how to stay a step ahead of them.
Stars: 847 - Last synced: 11 Jan 2026
github.com/Hubs-Foundation/Spoke
Easily create custom 3D environments
Stars: 666 - Last synced: 12 Jan 2026
github.com/mozilla/fxa
Monorepo for Mozilla Accounts (formerly Firefox Accounts)
Stars: 651 - Last synced: 13 Jan 2026
github.com/mozilla/application-services
Firefox Application Services
Stars: 646 - Last synced: 10 Jan 2026
github.com/mozilla/django-csp
Content Security Policy for Django.
Stars: 614 - Last synced: 08 Jan 2026
github.com/mozilla/nixpkgs-mozilla
Mozilla overlay for Nixpkgs.
Stars: 564 - Last synced: 09 Jan 2026
github.com/mozilla/bugbug
Platform for Machine Learning projects on Software Engineering
Stars: 547 - Last synced: 10 Jan 2026
github.com/mozilla/tls-observatory
An observatory for TLS configurations, X509 certificates, and more.
Stars: 540 - Last synced: 13 Jan 2026
github.com/mozilla/addons-frontend
Front-end to complement mozilla/addons-server
Stars: 536 - Last synced: 11 Jan 2026
github.com/mozilla/mozilla-django-oidc
A django OpenID Connect library
Stars: 505 - Last synced: 09 Jan 2026
github.com/mozilla/vtt.js
A JavaScript implementation of the WebVTT specification
Stars: 505 - Last synced: 12 Jan 2026
github.com/mozilla/FirefoxColor
Theming demo for Firefox Quantum and beyond
Stars: 487 - Last synced: 09 Jan 2026
github.com/mozilla/geckoview
GeckoView is a set of components for embedding Gecko in Android apps
Stars: 480 - Last synced: 09 Jan 2026
github.com/Hubs-Foundation/reticulum
Phoenix web server for Hubs
Stars: 454 - Last synced: 09 Jan 2026
github.com/mozilla/libdweb
Extension containing an experimental libdweb APIs
Stars: 444 - Last synced: 08 Jan 2026
github.com/mozilla/zilla-slab
Mozilla's Zilla Slab Type Family
Stars: 437 - Last synced: 09 Jan 2026
github.com/mozilla/mp4parse-rust
Parser for ISO Base Media Format aka video/mp4 written in Rust.
Stars: 433 - Last synced: 09 Jan 2026
github.com/mozilla/firefox-translations-models
CPU-optimized Neural Machine Translation models for Firefox Translations
Stars: 428 - Last synced: 10 Jan 2026
github.com/mozilla/agithub
Agnostic Github client API -- An EDSL for connecting to REST servers
Stars: 427 - Last synced: 09 Jan 2026
github.com/mozilla/ssl-config-generator
Mozilla SSL Configuration Generator
Stars: 403 - Last synced: 12 Jan 2026
github.com/mozilla/OpenDesign
Mozilla Open Design aims to bring open source principles to Creative Design. Find us on Matrix: chat.mozilla.org/#/room/#opendesign:mozilla.org
Stars: 378 - Last synced: 09 Jan 2026
github.com/mozilla/twemoji-colr
Twemoji font in COLR/CPAL layered format
Stars: 353 - Last synced: 12 Jan 2026
github.com/mozilla/addons-linter
🔍 Firefox Add-ons linter, written in JavaScript. 👁
Stars: 343 - Last synced: 10 Jan 2026
github.com/mozilla/rust-code-analysis
Library to analyze and collect metrics on source code
Stars: 333 - Last synced: 09 Jan 2026
github.com/mozilla/fxemoji
FxEmojis - a friendly emoji set from Mozilla
Stars: 330 - Last synced: 09 Jan 2026
github.com/mozilla/rkv
A simple, humane, typed key-value storage solution.
Stars: 323 - Last synced: 09 Jan 2026
github.com/mozilla/unicode-slugify
A slugifier that works in unicode
Stars: 321 - Last synced: 12 Jan 2026
github.com/mozilla/authenticator-rs
Rust library to interact with Security Keys, used by Firefox
Stars: 294 - Last synced: 09 Jan 2026
github.com/pyodide/sphinx-js
Autodoc-style extraction into Sphinx for your JS project
Stars: 288 - Last synced: 09 Jan 2026
github.com/mozilla/jschannel
A JavaScript library which implements fancy IPC semantics on top of postMessage.
Stars: 278 - Last synced: 08 Jan 2026
github.com/mozilla/protocol
A design system for Mozilla websites.
Stars: 274 - Last synced: 09 Jan 2026
github.com/mozilla/treeherder
A system for managing CI data for Mozilla projects
Stars: 266 - Last synced: 13 Jan 2026
github.com/mozilla/webxr-polyfill
A polyfill and example code for building augmented reality (AR) and virtual reality (VR) applications using WebXR.
Stars: 261 - Last synced: 13 Jan 2026
github.com/mozilla/DSAlign
DeepSpeech based forced alignment tool
Stars: 239 - Last synced: 08 Jan 2026
github.com/mozilla/eslint-plugin-no-unsanitized
Custom ESLint rule to disallows unsafe innerHTML, outerHTML, insertAdjacentHTML and alike
Stars: 237 - Last synced: 09 Jan 2026
github.com/mozilla/side-view
An experiment with opening mobile views of pages in the sidebar
Stars: 212 - Last synced: 13 Jan 2026
github.com/mozilla/npm-lockdown
Lock down your npm dependencies by shasum.
Stars: 208 - Last synced: 09 Jan 2026
github.com/mozilla/html5-lint
HTML Validation using Mozilla's HTML5 Validator instance
Stars: 198 - Last synced: 09 Jan 2026
github.com/mozilla/translations
The code, training pipeline, and models that power Firefox Translations
Stars: 197 - Last synced: 09 Jan 2026
github.com/mozilla/video-bg-play
Break Page Visibility API and Fullscreen API so video plays in background
Stars: 197 - Last synced: 12 Jan 2026
github.com/mozilla/lightbeam-we
Web Extension version of the Firefox Lightbeam add-on
Stars: 193 - Last synced: 08 Jan 2026
github.com/mozilla/telemetry-airflow
Airflow configuration for Telemetry
Stars: 193 - Last synced: 09 Jan 2026
github.com/mozilla/platform-tilt
Tracking issues which disadvantage Firefox relative to first-party browsers on major software platforms.
Stars: 190 - Last synced: 08 Jan 2026
github.com/mozilla/releases-comm-central
EXPERIMENTAL - copy of comm-central for forking on github
Stars: 187 - Last synced: 10 Jan 2026
github.com/mozilla/mozregression
Regression range finder for Mozilla nightly builds
Stars: 176 - Last synced: 13 Jan 2026
github.com/Hubs-Foundation/hubs-cloud
Resources for self hosted Hubs Cloud instances
Stars: 169 - Last synced: 08 Jan 2026
github.com/mozilla/mozilla-type-family
A collection of custom fonts for Mozilla
Stars: 159 - Last synced: 23 Jan 2026
github.com/mozilla/dump_syms
Rewrite of breakpad dump_syms tools in Rust
Stars: 154 - Last synced: 13 Jan 2026
github.com/mozilla/aom
Alliance for Open Media Video Codec reference implementation (Mozilla branch)
Stars: 151 - Last synced: 08 Jan 2026
github.com/mozilla/experimenter
A web application for managing user experiments for Mozilla Firefox.
Stars: 140 - Last synced: 10 Jan 2026
github.com/mozilla/janus-plugin-sfu
Janus plugin to act as a kind of SFU for game networking data.
Stars: 136 - Last synced: 08 Jan 2026
github.com/mozilla/crlite
Compact certificate revocation lists for the WebPKI
Stars: 135 - Last synced: 08 Jan 2026
github.com/mozilla/addons
☂ Umbrella repository for Mozilla Addons ✨
Stars: 126 - Last synced: 10 Jan 2026
github.com/mozilla/docker-sbt
Dockerfile for sbt (Scala build tool)
Stars: 126 - Last synced: 08 Jan 2026
github.com/mozilla/One-Mozilla-blog
A universal WordPress theme for Mozilla blogs
Stars: 124 - Last synced: 08 Jan 2026