MOSS/Foundational Technology/Projects We Use

This is an incomplete list of the free software and open source projects Mozilla relies upon. As a starting point, it lists each project along with a short statement of how we depend on it. Where practical it would also be helpful to identify a Mozillian most closely associated with our use of each project, as next steps will involve contacting each one to find out more about how we can best provide support.

This is a work in progress - please contribute to this list.

Project	FSF directory entry	Description	Contact within Mozilla
angular.js	AngularJS	Used by A-Team for web apps (eg Treeherder)	Member of Jonathan Griffin's team
Apache Server	Apache	Used by A-Team for web apps	Member of Jonathan Griffin's team
Ansible	Ansible	Used by IT (netops) and A-Team to manage deployments	jbarnell , GPS?
BabelJS	check	JavaScript compiler, Used by Gaia, TaskCluster team	Selena Deckelmann
Blessings	check	Terminal formatting lib used by mozilla-central build process	Erik Rose
Bootstrap	Bootstrap	HTML/CSS/JS framework, used by many of Mozilla's sites.	Webdev
bro	check	The Bro Network Security Monitor	Michal Purzynski
BuildBot	BuildBot	The base system currently in use for release automation (due to be replaced by Task Cluster)	Chris AtLee
Bugzilla (upstream)	Bugzilla	The base Bugzilla on that we customize for Mozilla's use	Glob
Celery	Celery	Distributed task queue. Used by Treeherder and others.	Member of Jonathan Griffin's team
CKEditor	check	WYSIWYG editor on MDN
Clang/LLVM	check	C/C++ compiler and infrastructure	Ehsan Akhgari
CodeMirror	check	Used in DevTools, Thimble, and other online code tools	David Humphrey/Simon Wex
ConEmu	ConEmu	Console emulator for Windows. Used by devs running Windows.	Ed Morley
Debian	non-free	Used on many developer boxes	Unknown (maybe Sylvestre Ledru) or glandium
Discourse	Discourse	Community, Webmaker, Advocacy, et al	Community Ops (Yousef Alam or Tanner Filip)
Django	Django	Backend web framework used on many of our websites, including addons.mozilla.org, marketplace.mozilla.org, support.mozilla.org, Input, Snippets, MDN (Mozilla Developer Network), mozilla.org, Treeherder	Andy McKay and Jannis Leidel are (or have been) on the Django Software Foundation board, Jannis is core team member
Django REST framework	Django-rest	API framework. Used by various Mozilla sites including MDN, Firefox marketplace, mozilla.org, support.mozilla.com.	Andy McKay and Jannis Leidel
Docker	Docker	Used by release engineering for Linux build and test containers and by ateam for managing test and production services. Used by many Mozilla websites as well such as addons.mozilla.org, marketplace.mozilla.org. (Plus docker-compose and docker machine)	Member of Selena Deckelmann's team
elasticsearch	Elasticsearch	Search engine for various web sites and analytics	Erik Rose
emacs	emacs	Programmable editor used by many developers	—
Etherpad	check	Used for meeting notes, etc	JP Schneider
flake8	Flake8	Wrapper around Python linters. Used by Treeherder and others.	Member of Jonathan Griffin's team
Flask	check	Python web framework	Erik Rose
Font Awesome	Awesome Font Awesome	Font and CSS toolkit, used by many of Mozilla's sites.	Webdev
GCC	Gcc	C/C++ compiler and infrastructure	Unknown
Git	Git	Version control system - https://git.mozilla.org	Unknown
gunicorn	check	Python WSGI HTTP Server. Used by Treeherder, Socorro, Pontoon.	Webdev
HarfBuzz	HarfBuzz	International text shaping engine used in Firefox/Servo	Platform team
Hunspell	check	Spellchecking engine	Unknown
Hyphen	check	Hyphenation library	Unknown
Intern	check	Intern is a complete test system for JavaScript designed to help you write and run consistent, high-quality test cases for your JavaScript libraries and applications.	jrgm/vladikoff
jemalloc	Jemalloc	Memory allocation library	We can ask glandium
Jenkins CI	Jenkins	Continuous integration system used by WebQA and EE	Unknown
jQuery	jQuery	JavaScript library, used by many of Mozilla's sites.	Webdev
Kombu	Kombu	Messaging library for Python. Used by Treeherder and others.	Member of Jonathan Griffin's team
libjpeg-turbo	Libjpeg-turbo	JPEG decoding library	Jeff Muizelaar
libpng	Libpng	PNG decoding library	Jeff Muizelaar
libvpx (Google)	check	Library for support of Google’s VP* family of codecs	Tim Terriberry
Linux	non-free	OS kernel used in Firefox OS	Unknown
lodash	Lodash	JavaScript utility library, used by many of Mozilla's sites.	Webdev
Mailman	Mailman	Mailing lists	Unknown
MediaWiki	MediaWiki	You are reading this on a wiki	Sheeri Cabral
Mercurial	Mercurial	Version control system and source code management	GPS
Mohawk	check	Python library for Hawk HTTP authorization. Used by Treeherder and others.	Member of Jonathan Griffin's team
mozdef	check	Security event monitoring and incident response	Jeff Bryner
msys	check	Used to build Firefox on Windows. Note: It's likely best we support the newer MSYS2 project instead: https://github.com/msys2	Unknown
MySQL	MySQL	Open source relational DB used by many developers, including AMO, SUMO, Input, bugzilla, releng, adminstered by IT	Sheeri Cabral
Nagios	Nagios	IT management system. Used for notifications of system failures	Sheeri Cabral, Ashish V.
netsniff-ng	Netsniff-ng	Linux networking toolkit	Michal Purzynski
nICEr	check	Library for traversing firewalls	Unknown
NixOS	check	Reproducible Linux distribution. Used by some developers and for running benchmarks on Firefox OS for AreWeFastYet	Nicolas B. Pierron
Node.js	Node.js	JavaScript runtime for server side applications, command line utilities	Nick Desaulniers
nrappkit	check	Toolkit for building standalone applications	Unknown
OpenH264 (Cisco)	check	H.264 video library	Unknown
OpenResty	OpenResty	a fast web app server by extending nginx, used by cloudops	Benson Wong (mostlygeek)
OpenSSH	OpenSSH	Remote server management, secure transport for Git and Mercurial	Unknown
OpenLDAP	check	User management used by Infra	:jabba?
inspircd	Inspircd	Irc server used by mozilla	Unknown
OpenSSL	OpenSSL	Cryptograpahy and TLS Toolkit	Nick Desaulniers
OWASP ZAP	ZAP&title=Special%3ASearch&fulltext=1 check	Web security testing tool used by security and QA teams	Simon Bennetts (psiinon)
Owncloud	Owncloud	Open platform to host your cloud under your control	Some communities have been using it to host files under their control (ask Nukeador)
Parsimonious	check	Parsing lib used by DXR and a few other sites (I think)	Erik Rose
PDF.js	PDF.js	Used as the PDF Viewer in Firefox and Firefox OS	Brendan Dahl, Yury Delendik
pep8	check	Python linter. Used by Treeherder and others.	Member of Jonathan Griffin's team
Perl	Perl	Used by Bugzilla	Member of Jonathan Griffin's team
Phalcon PHP Framework	check	Phalcon is an open source web framework delivered as a C extension for the PHP language providing high performance and lower resource consumption.	Andres Gutierrez is one of the core developers of Phalcon and its inspiration.
pip	Python-pip	Python package tool. Used by all Python projects.	Erik Rose and Jannis Leidel, Jannis is core team member (PyPA)
Piwik	Piwik	Analytic software that gives you the control and respects privacy	Some communities have been using it to avoid GA analytics (Ask Nukeador)
Pocketsphinx	check	Speech recognition toolkit embedded into Firefox OS	André Natal
PostgreSQL	PostgreSQL	Open source relational DB used by many developers, adminstered by IT	Selena Deckelmann
Prism.js	check	Syntax highlighting on code samples on MDN
Puppet	Puppet	System administration tool	Member of Amy Rich's team
pyflakes	check	Python linter. Used by Treeherder and others.	Member of Jonathan Griffin's team
pytest	Pytest	Python testing tool. Used by Treeherder and others.	Member of Jonathan Griffin's team
Python	Python	Scripting language	Python Software Foundation, Selena Deckelmann is a former board member
pyelasticsearch	check	Python client for elasticsearch	Erik Rose
RabbitMQ	check	Distributed Queue, used by Socorro, Pulse (all our publicly available build/test/commit information flows through this), Treeherder, addons.mozilla.org (with Celery), marketplace.mozilla.org (with Celery)	Selena Deckelmann
Read the Docs	the Docs&title=Special%3ASearch&fulltext=1 check	Hosted automatically-built documentation, used by Cloud Services and a wide variety of mozilla Github projects	Ben Bangert, Jannis Leidel, Gervase Markham
Requests	Requests&title=Special%3ASearch&fulltext=1 check	"Python HTTP Requests for Humans". Used by many many Mozilla Python projects.	Member of Jonathan Griffin's team
Review Board	Board&title=Special%3ASearch&fulltext=1 check	The base of MozReview, the new review tool being developed to replace Splinter	Steven MacLeod, Mike Conley
Selenium	Selenium	Browser test driver	stephend/AutomatedTester or jrgm/vladikoff
SlimerJS	check	Scriptable browser, based on Gecko, used for functional tests in some few Mozilla projects ( PluotSorbet, some FxOS apps ? and others ?)	Unknown
SQLite	SQLite	File-based database	khuey
Stylus	Stylus	CSS Pre-processor on several sites	webdev
Subversion	Subversion	https://svn.mozilla.org (Planning to decommission in near future)	Unknown
suricata	check	IDS / IPS / NSM engine	Michal Purzynski
Travis	Travis	Continuous integration system used by several teams (eg Treeherder)	Jonathan Griffin's team
Vagrant	check	Build and distribute dev envs, used by Treeherder and others	Member of Jonathan Griffin's team
Valgrind	Valgrind	Memory error detection and profiling of C and C++ code	jseward, njn
vim	Vim	editor used by many developers	—
web-platform-tests	check	Testcases and tooling for cross-browser testing of web-platform APIs	jgraham
WebRTC.org	check	Components to support real-time communication in browsers and mobile applications	Randell Jesup
WordPress	WordPress	Powers our blogs, blog.mozilla.org	Craig Cook
Xiph.Org	Xiph	Media codecs ship in Firefox, encoding tools	Ralph Giles