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.
The free software definition
Software is open-source if its source is released to the public. Software is free (which is a more narrow term) if the licence the source is released under gives users the basic software freedoms, as stated in the free software definition. To quote it, a program is free software if the program's users have the four essential freedoms:
- 0) The freedom to run the program as you wish, for any purpose (freedom 0).
- 1) The freedom to study how the program works, and change it so it does your computing as you wish (freedom 1). Access to the source code is a precondition for this.
- 2) The freedom to redistribute copies so you can help your neighbor (freedom 2).
- 3) The freedom to distribute copies of your modified versions to others (freedom 3). By doing this you can give the whole community a chance to benefit from your changes. Access to the source code is a precondition for this.
To stress freedoms 0, 2, and 3, it is preferable to use the term "free software" or "libre software" over the term "open-source software".
When adding new software to the list, please link to their FSF directory entry, when you can. To add the FSF directory entry, please use one of these templates:
| {{FSFDir|NameOfSoftware}} | the entry exists |
| {{FSFDirNo|NameOfSoftware}} | you're lazy to check whether it exists, or if it doesn't exist |
| {{FSFDirNonFree|URL}} | the software is known to be non-free per the free software definition. Include the supporting URL (link to the non-free component or to a web page talking about it). |
The 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 | LLVM
|
C/C++ compiler and infrastructure | Ehsan Akhgari |
| CodeMirror | check
|
Used in DevTools, Thimble, and other online code tools | David Humphrey/Simon Wex |
| ConEmu | check
|
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 | 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 | check
|
Hosted automatically-built documentation, used by Cloud Services and a wide variety of mozilla Github projects | Ben Bangert, Jannis Leidel, Gervase Markham |
| Requests | check
|
"Python HTTP Requests for Humans". Used by many many Mozilla Python projects. | Member of Jonathan Griffin's team |
| Review Board | 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 |