MOSS/Foundational Technology/Projects We Use: Difference between revisions

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Note that presence on this list isn't the same as, nor is it a prerequisite for, applying for the MOSS "Foundational Technology" track - projects have to make an application using the process on the [[MOSS/Foundational Technology|Foundational Technology]] page.
Note that presence on this list isn't the same as, nor is it a prerequisite for, applying for the MOSS "Foundational Technology" track - projects have to make an application using the process on the [[MOSS/Foundational Technology|Foundational Technology]] page.


This is a work in progress - please contribute to this list.
This is a work in progress - please contribute to this list. Note that it's in alphabetical order.


{| class="wikitable"
{| class="wikitable"
|-
|-
! Project !! Description !! Contact within Mozilla
! Project                                               !! Description and Use !! Contact within Mozilla
|-
|-
| [https://angularjs.org/ angular.js]           || Used by A-Team for web apps (eg Treeherder) || Member of Jonathan Griffin's team
| [https://www.adjust.com/                     Adjust] || Mobile app analytics; used to track installs on Firefox for Android & other products || Android & iOS teams
|-
|-
| [https://httpd.apache.org Apache Server]     || Used by A-Team for web apps || Member of Jonathan Griffin's team
| [https://github.com/apache/incubator-airflow/ Airflow] || Airflow is a platform to programmatically author, schedule and monitor workflows. || Roberto Agostino Vitillo
|-
|-
| [https://github.com/ansible/ansible Ansible] || Used by IT (netops) and A-Team to manage deployments || jbarnell , GPS?
| [http://lcamtuf.coredump.cx/afl/             American Fuzzy Lop] || A security-oriented fuzzer. || Unknown
|-
|-
| [https://github.com/h4writer/arewefastyet AreWeFastYet] || Compare JS performance across JS engines and platforms || Hannes Verschore
| [http://angleproject.org/                     ANGLE] || A conformant OpenGL ES implementation for Windows, Mac and Linux || Platform Graphics Team
|-
|-
| [https://babeljs.io/ BabelJS]                 || JavaScript compiler, Used by Gaia, TaskCluster team || Selena Deckelmann
| [https://angularjs.org/                       angular.js] || Used by A-Team for web apps (eg Treeherder) || Member of Jonathan Griffin's team
|-
|-
| [https://pypi.python.org/pypi/blessings/ Blessings] || Terminal formatting lib used by mozilla-central build process || Erik Rose
| [https://httpd.apache.org                     Apache Server] || Used by A-Team for web apps || Member of Jonathan Griffin's team
|-
|-
| [http://getbootstrap.com/ Bootstrap] || HTML/CSS/JS framework, used by many of Mozilla's sites. || Webdev
| [https://github.com/ansible/ansible          Ansible] || Used by IT (netops) and A-Team to manage deployments || jbarnell , Webops, GPS?
|-
|-
| [http://brew.sh/ brew / Homebrew] || Mac OS X packaging system, used to install dev tools || Sam Penrose
| [https://github.com/h4writer/arewefastyet    AreWeFastYet] || Compare JS performance across JS engines and platforms || Hannes Verschore
|-
|-
| [https://bro.org bro]                   || The Bro Network Security Monitor || Michal Purzynski
| [https://github.com/argonjs                  Argon] || Used as the foundation for mobile AR web browser research by Emerging Tech || Blair MacIntyre
|-
|-
| [http://buildbot.net/ BuildBot]               || The base system currently in use for release || Dustin J. Mitchell
| [https://atom.io/                             Atom] || Used (either vanilla or e.g. as [https://github.com/Microsoft/vscode] ) by various developers ||
|-
|-
| [http://bugzilla.org/ Bugzilla] (upstream)    || The base Bugzilla on that we customize for Mozilla's use || Glob
| [https://babeljs.io/                         BabelJS] || JavaScript compiler, Used by Gaia, TaskCluster team || Selena Deckelmann
|-
|-
| [http://www.celeryproject.org/ Celery] || Distributed task queue. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [https://www.isc.org/downloads/bind/          BIND] || DNS Server || Brian Hourigan
|-
|-
| [http://ckeditor.com/ CKEditor] || WYSIWYG editor on MDN ||  
| [https://pypi.python.org/pypi/bleach/         Bleach] || HTML sanitizing library that escapes or strips markup and attributes used by MDN and a bunch of Mozilla sites || Will Kahn-Greene
|-
|-
| [http://chaijs.com/ Chai] || JavaScript test and assertion library || Cloud Services, Tarek Ziade's team (kinto.js), Firefox Hello team
| [https://pypi.python.org/pypi/blessings/     Blessings] || Terminal formatting lib used by mozilla-central build process || Erik Rose
|-
|-
| [http://www.llvm.org Clang/LLVM]           || C/C++ compiler and infrastructure || Ehsan Akhgari & Sylvestre Ledru
| [https://chromium.googlesource.com/chromium/blink/+log/master/Source/modules/webaudio Blink Web Audio] || Web audio implementation from Blink ||  
|-
|-
| [https://codemirror.net/ CodeMirror]           || Used in DevTools, [https://thimble.mozilla.org Thimble], and other online code tools || David Humphrey/Simon Wex
| [http://getbootstrap.com/                     Bootstrap] || HTML/CSS/JS framework, used by many of Mozilla's sites. || Webdev
|-
|-
| [https://pypi.python.org/pypi/cookiecutter/ Cookiecutter] || Templating system used to clone our [https://github.com/mozilla/sugardough Sugardough] Django template || Giorgos Logiotatidis
| [https://bro.org                             bro] || The Bro Network Security Monitor || Michal Purzynski
|-
|-
| [https://conemu.github.io/ ConEmu] || Console emulator for Windows. Used by devs running Windows. || Ed Morley
| [https://github.com/google/brotli            brotli] || Compression library ||
|-
|-
| [http://curl.haxx.se/ curl] || internet transfer tool and library, used by crashreporter and FirefoxOS || Daniel Stenberg
| [http://browserify.org                        Browserify] || Build JS dependencies for the browser || mozilla-services (kinto.js)
|-
|-
| [https://www.debian.org/ Debian] || Used on many developer boxes || Sylvestre Ledru or glandium
| [http://buildbot.net/                         BuildBot] || The base system currently in use for release || Dustin J. Mitchell
|-
|-
| [http://deis.io Deis] || Open Source Heroku-like PaaS platform. Hosts www.mozilla.org, masterfirefoxos.mozilla.org, etc. || Member of Benjamin Sternthal's team
| [http://bugzilla.org/                        Bugzilla] (upstream) || The base Bugzilla on that we customize for Mozilla's use || Mark Côté
|-
|-
| [https://disconnect.me/trackerprotection Disconnect.me ] || Open, transparent, neutral Tracking Protection blocklist used in Firefox Private Browsing Windows || Marshall Erwin, Javaun Moradi, Francois Marier
| [https://www.cairographics.org/               Cairo] || Vector graphics-based, device independent API; includes pixman || Jeff Muizelaar
|-
|-
| [https://discourse.org Discourse] || [https://discourse.mozilla-community.org Community], [https://discourse.webmaker.org/ Webmaker], [https://discourse.mozilla-advocacy.org/ Advocacy], et al || [[IT/Community/WG/Discourse|Community Ops]] (Yousef Alam or Tanner Filip)
| [https://ccache.samba.org/                   ccache] || A compiler cache; used by Servo and Gecko builds || Ted Mielczarek
|-
|-
| [https://djangoproject.com 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 [https://www.djangoproject.com/foundation/ Django Software Foundation] board, Jannis is core team member
| [http://www.celeryproject.org/                Celery] || Distributed task queue. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| [http://www.django-rest-framework.org Django REST framework]     || API framework. Used by various Mozilla sites including MDN, Firefox marketplace, mozilla.org, support.mozilla.com. || Andy McKay and Jannis Leidel
| [https://github.com/awslabs/certlint          certlint] || Certificate checking tool, used by the Root Store team || Kathleen Wilson
|-
|-
| [https://github.com/docker/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 
| [http://cffi.readthedocs.io/en/latest/       cffi] || C Foreign Function Interface for Python. || Cloud Services Team
|-
|-
| [https://www.elastic.co/products/elasticsearch elasticsearch] || Search engine for various web sites and analytics || Erik Rose
| [http://ckeditor.com/                         CKEditor] || WYSIWYG editor on MDN ||
|-
|-
| [http://www.gnu.org/software/emacs/ emacs] || Programmable editor used by many developers || —
| [http://unicode.org/cldr/trac/browser/trunk  CLDR] || Common Locale Data Repository - Unicode data ||
|-
|-
| [http://eslint.org/ eslint] || Pluggable linting utiltity used by Firefox Hello, DevTools and Firefox Android || Mark Banner
| [https://cmake.org/                           CMake] || cross-platform family of tools designed to build, test and package software, lua_sandbox, lua_sandbox_extensions, hindsight, hindsight_admin || Mike Trinkala
|-
|-
| [https://github.com/ether/etherpad-lite Etherpad]     || Used for meeting notes, etc || JP Schneider
| [http://chaijs.com/                           Chai] || JavaScript test and assertion library || Cloud Services, Tarek Ziade's team (kinto.js), Firefox Hello team
|-
|-
| [https://flake8.readthedocs.org/ flake8] || Wrapper around Python linters. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [https://bitbucket.org/chromiumembedded/cef  Chromium Embedded Framework] || A simple framework for embedding browsers in other applications || Jack Moffitt
|-
|-
| [http://flask.pocoo.org/ Flask]               || Python web framework || Erik Rose
| [http://www.llvm.org                         Clang/LLVM] || C/C++ compiler and infrastructure || Ehsan Akhgari & Sylvestre Ledru
|-
|-
| [https://fortawesome.github.io/Font-Awesome/ Font Awesome] || Font and CSS toolkit, used by many of Mozilla's sites. || Webdev
| [https://codemirror.net/                     CodeMirror] || Used in DevTools, [https://thimble.mozilla.org Thimble], and other online code tools || David Humphrey/Simon Wex
|-
|-
| [http://gcc.gnu.org GCC]                     || C/C++ compiler and infrastructure || Nathan Froyd
| [https://pypi.python.org/pypi/cookiecutter/  Cookiecutter] || Templating system used to clone our [https://github.com/mozilla/sugardough Sugardough] Django template || Giorgos Logiotatidis
|-
|-
| [https://git-scm.com/ Git]                   || Version control system - https://git.mozilla.org || Unknown  
| [https://gcc.godbolt.org/                     Compiler Explorer - C++] || Online C++ compiler with assembly output. Used by devs to test&optimize code snippets. || Unknown
|-
|-
| [http://gunicorn.org/ gunicorn] || Python WSGI HTTP Server. Used by Treeherder, Socorro, Pontoon. || Webdev
| [https://rust.godbolt.org/                    Compiler Explorer - Rust] || Online Rust compiler with assembly output. Used by devs to test&optimize code snippets. || Unknown
|-
| [https://conemu.github.io/                    ConEmu] || Console emulator for Windows. Used by devs running Windows. || Ed Morley
|-
| [https://pypi.python.org/pypi/ConfigArgParse  ConfigArgParse] || A drop-in replacement for argparse that allows options to also be set via config files and/or environment variables || Cloud Services Team
|-
| [http://crt.sh/                              crt.sh] || Global certificate corpus search website || Gervase Markham
|-
| [http://github.com/kinetiknz/cubeb.git        cubeb] || Cross-platform audio library ||
|-
| [http://curl.haxx.se/                        curl] || internet transfer tool and library, used by crashreporter and FirefoxOS || Daniel Stenberg
|-
| [https://www.debian.org/                      Debian] || Used on many developer boxes || Sylvestre Ledru or glandium
|-
| [http://deis.io                              Deis] || Open Source Heroku-like PaaS platform. Hosts www.mozilla.org, masterfirefoxos.mozilla.org, etc. || Member of Benjamin Sternthal's team
|-
| [https://disconnect.me/trackerprotection      Disconnect.me ] || Open, transparent, neutral Tracking Protection blocklist used in Firefox Private Browsing Windows || Marshall Erwin, Javaun Moradi, Francois Marier
|-
| [https://discourse.org                        Discourse] || [https://discourse.mozilla-community.org Community], [https://discourse.webmaker.org/ Webmaker], [https://discourse.mozilla-advocacy.org/ Advocacy], et al || [[IT/Community/WG/Discourse|Community Ops]] (Yousef Alam or Tanner Filip)
|-
| [https://djangoproject.com                    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, nucleus, Treeherder || Andy McKay and Jannis Leidel are (or have been) on the [https://www.djangoproject.com/foundation/ Django Software Foundation] board, Jannis is core team member
|-
| [http://www.django-rest-framework.org        Django REST framework] || API framework. Used by various Mozilla sites including MDN, Firefox marketplace, mozilla.org, support.mozilla.com. || Andy McKay and Jannis Leidel
|-
| [https://github.com/docker/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
|-
| [https://github.com/google/double-conversion  double-conversion] || Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles ||
|-
| [http://www.stack.nl/~dimitri/doxygen/        Doxygen] || tool for generating documentation from annotated sources, lua_sandbox || Mike Trinkala
|-
| [https://drupal.org/                          Drupal] || Open Source CMS. Used by Dev Rel team. || Potch
|-
| [https://pypi.python.org/pypi/ecdsa          ecdsa] || ECDSA cryptographic signature library (pure python) || Cloud Services Team
|-
| [https://eclipse.org/                        Eclipse] || Integrated Development Environment used by many developers || —
|-
| [http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libedit editline] || Line editing library (from libedit) ||
|-
| [https://www.elastic.co/products/elasticsearch elasticsearch] || Search engine for various web sites and analytics || Erik Rose (dxr), Kyle Lahnakoski (ActiveData), Jason Thomas
|-
| [http://elm-lang.org/                        Elm] || A delightful language for reliable webapps. || Rok Garbas (garbas), Release Engineering Team
|-
| [http://www.gnu.org/software/emacs/          emacs] || Programmable editor used by many developers || —
|-
| [https://emojione.com/                        EmojiOne] || Upstream Emoji artwork used in the Firefox built-in Emoji font || Tim Chien ([https://github.com/mozilla/emojione-colr See emojione-colr])
|-
| [http://eslint.org/                          eslint] || Pluggable linting utiltity used by Firefox Hello, DevTools and Firefox Android || Mark Banner, Nicolas Perriault
|-
| [https://github.com/ether/etherpad-lite      Etherpad] || Used for meeting notes, etc || JP Schneider
|-
| [https://github.com/freebsd/freebsd/tree/master/lib/msun/src fdlibm] || ??? ||
|-
| [https://ffmpeg.org/                          ffmpeg] || Used for media decoding. || Jean-Yves Avenard
|-
| [https://flake8.readthedocs.org/              flake8] || Wrapper around Python linters. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
| [http://flask.pocoo.org/                      Flask] || Python web framework || Erik Rose
|-
| [https://flowtype.org/                        Flow] || A static type checker for JavaScript || Greg Tatum, Jason Laster, Nicolas Perriault
|-
| [https://fortawesome.github.io/Font-Awesome/  Font Awesome] || Font and CSS toolkit, used by many of Mozilla's sites. || Webdev
|-
| [http://fontforge.github.io/en-US/            FontForge] || Built-in Emoji font compilation || Tim Chien ([https://github.com/mozilla/emojione-colr See emojione-colr])
|-
| [https://pypi.python.org/pypi/FontTools      FontTools] || Built-in Emoji font compilation || Tim Chien ([https://github.com/mozilla/emojione-colr See emojione-colr])
|-
| [http://foundation.zurb.com/ Foundation      Framework] || Responsive front-end framework, used by some Mozilla sites and add-ons || Luke Crouch
|-
| [https://www.freetype.org/                    FreeType] || Small, efficient, highly customizable, and portable library for producing high-quality output (glyph images) of most vector and bitmap font formats. || Platform team
|-
| [http://gcc.gnu.org                          GCC] || C/C++ compiler and infrastructure || Nathan Froyd
|-
| [http://https://www.sourceware.org/gdb/      GDB] || The GNU Debugger, the sole debugger for Linux || Jim Blandy
|-
| [https://git-scm.com/                        Git] || Version control system - https://git.mozilla.org || Unknown
|-
| [https://www.freedesktop.org/wiki/Software/glitz/ Glitz] || OpenGL image compositing library ||
|-
| [https://gradle.org/                          Gradle] || Build automation system; used to build Firefox for Android || Android team
|-
| [http://graphite.sil.org/                    Graphite] || Graphite is a "smart font" system developed specifically to handle the complexities of lesser-known languages of the world. || Platform team
|-
| [http://gunicorn.org/                         gunicorn] || Python WSGI HTTP Server. Used by Treeherder, Socorro, Pontoon. || Webdev
|-
| [https://github.com/apache/hive/              Hive] || The Apache Hive data warehouse software facilitates reading, writing, and managing large datasets residing in distributed storage using SQL. || Roberto Agostino Vitillo
|-
|-
| [http://www.freedesktop.org/wiki/Software/HarfBuzz/ HarfBuzz] || International text shaping engine used in Firefox/Servo || Platform team
| [http://www.freedesktop.org/wiki/Software/HarfBuzz/ HarfBuzz] || International text shaping engine used in Firefox/Servo || Platform team
|-
|-
| [http://hunspell.sourceforge.net/ Hunspell] || Spellchecking engine || Ehsan Akhgari
| [https://github.com/apache/hbase/            HBase] || HBase is an open-source, distributed, versioned, column-oriented store modeled after Bigtable. || Roberto Agostino Vitillo
|-
| [http://brew.sh/ brew /                      Homebrew] || Mac OS X packaging system, used to install dev tools || Sam Penrose
|-
| [http://homu.io/                              Homu] || A bot that integrates with your favorite continuous integration service; used by Rust and Servo || Jack Moffitt
|-
| [http://hunspell.sourceforge.net/             Hunspell] || Spellchecking engine || Ehsan Akhgari
|-
| [https://github.com/hunspell/hyphen/          Hyphen] || Hyphenation library || Jonathan Kew
|-
| [https://github.com/jkbrzt/httpie            HTTPie] || HTTP command-line client || Cloud Services (among many others), Tarek Ziade's team
|-
| [https://python-hyper.org/en/latest/          hyper] || Hyper is a set of related projects that provide HTTP/2 functionality to Python projects. || Cloud Services Team
|-
| [https://hyper.rs/hyper/v0.10.0/hyper/        Hyper] || A fast, modern HTTP implementation written in and for Rust; used by Servo || Sean McArthur
|-
| [https://github.com/icecc/icecream            Icecream (icecc)] || Distributed build system, used to speed up local Firefox build times in some Mozilla offices || Daniel Holbert, or contributors on the [https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Using_Icecream Icecream MDN Page]
|-
| [https://ssl.icu-project.org/repos/icu/icu/  ICU] || (And ICU4J) International Components for Unicode - internationalization library ||
|-
| [http://ideone.com/                          ideone.com] || Online compiler & runner for a number of languages. Used by devs to test&benchmark code snippets. || Unknown
|-
| [http://www.inspircd.org/                    inspircd] || Irc server used by mozilla || :ashish
|-
| [https://theintern.github.io/intern/          Intern] || 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
|-
|-
| [https://github.com/hunspell/hyphen/ Hyphen] || Hyphenation library || Jonathan Kew
| [http://canonware.com/jemalloc/               jemalloc] || Memory allocation library || We can ask glandium
|-
|-
| [https://github.com/jkbrzt/httpie HTTPie] || HTTP command-line client || Cloud Services (among many others), Tarek Ziade's team
| [http://jenkins-ci.org/                       Jenkins CI] || Continuous integration system used by WebQA and EE || Unknown
|-
|-
| [https://theintern.github.io/intern/ Intern] || 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
| [https://jquery.com/                         jQuery] || JavaScript library, used by many of Mozilla's sites. || Webdev
|-
|-
| [http://canonware.com/jemalloc/ jemalloc]     || Memory allocation library || We can ask glandium
| [https://github.com/tmpvar/jsdom              jsdom] || DOM implementation in full JS || Test suites in Cloud Services, Tarek Ziade's team (kinto.js)
|-
|-
| [http://jenkins-ci.org/ Jenkins CI]                   || Continuous integration system used by WebQA and EE || Unknown
| [https://github.com/open-source-parsers/jsoncpp jsoncpp] || A C++ library for interacting with JSON, used by the crashreporter client and Socorro. || Gabriele Svelto
|-
|-
| [https://jquery.com/ jQuery] || JavaScript library, used by many of Mozilla's sites. || Webdev
| [https://github.com/jodeleeuw/jsPsych        jsPsych] || A JavaScript library for creating and running behavioral experiments in a web browser. || Josh Gaunt
|-
|-
| [https://github.com/tmpvar/jsdom jsdom] || DOM implementation in full JS || Test suites in Cloud Services, Tarek Ziade's team (kinto.js)
| [https://github.com/jupyter/notebook/        Jupyter Notebook] || The Jupyter notebook is a web-based notebook environment for interactive computing. || Roberto Agostino Vitillo
|-
|-
| [http://kombu.readthedocs.org/ Kombu] || Messaging library for Python. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [https://kafka.apache.org/                   Kafka] || Distributed transaction log, used for hg.mozilla.org replication. || gps
|-
|-
| libjpeg-turbo                                || JPEG decoding library || Jeff Muizelaar
| [http://hg.code.sf.net/p/kissfft/code        kissfft] || FFT library, presumably ||
|-
|-
| [http://www.libpng.org/pub/png/libpng.html libpng] || PNG decoding library || Jeff Muizelaar
| [https://github.com/airbnb/knowledge-repo/   Knowledge Repo] || The Knowledge Repository project is focused on facilitating the sharing of knowledge between data scientists and other technical roles using data formats and tools that make sense in these professions. || Roberto Agostino Vitillo
|-
|-
| libvpx (Google)                              || Library for support of Google’s VP* family of codecs || Tim Terriberry
| [http://kombu.readthedocs.org/                Kombu] || Messaging library for Python. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| Linux                                        || OS kernel used in Firefox OS || Unknown
| [https://www.latex-project.org/              LaTeX] || A document preparation system. || Alan Jeffrey (ajeffrey)
|-
|-
| [https://lodash.com/ lodash] || JavaScript utility library, used by many of Mozilla's sites. || Webdev & Firefox Hello
| [https://github.com/square/leakcanary        Leak Canary] || Android memory leak detection framework || Android team
|-
|-
| [https://www.list.org/ Mailman]     || [https://mail.mozilla.org/listinfo Mailing lists] || Unknown
| [https://libav.org/                           libav] || Audio and video libraries ||
|-
|-
| [https://www.mediawiki.org/wiki/MediaWiki MediaWiki]     || You are reading this on a wiki || Sheeri Cabral
| [http://www.bzip.org/                         libbz2] || Compression library for .bz2 format || Julian Seward
|-
|-
| [https://www.mercurial-scm.org/ Mercurial]   || Version control system and source code management || GPS
| [http://libevent.org/                         libevent] || Provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached. || Platform team
|-
|-
| [http://mochajs.org/ Mocha] || JavaScript test runner || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
| [https://sourceware.org/libffi/              libffi] || A Portable Foreign Function Interface Library. || Platform team
|-
|-
| [https://github.com/kumar303/mohawk Mohawk] || Python library for Hawk HTTP authorization. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [http://libjpeg-turbo.virtualgl.org/         libjpeg-turbo] || JPEG decoding library || Jeff Muizelaar
|-
|-
| [http://mozdef.com mozdef]                   || Security event monitoring and incident response || Jeff Bryner
| [https://github.com/kinetiknz/nestegg        libnestegg] || WebM demuxer ||
|-
|-
| [http://www.mingw.org/wiki/msys msys]         || Used to build Firefox on Windows. Note: It's likely best we support the newer MSYS2 project instead: https://github.com/msys2 || Unknown
| [http://www.libpng.org/pub/png/libpng.html    libpng] || PNG decoding library || Jeff Muizelaar
|-
|-
| [https://www.mysql.com/ MySQL]               || Open source relational DB used by many developers, including AMO, SUMO, Input, bugzilla, releng, adminstered by IT || Sheeri Cabral
| [https://www.webmproject.org/code/            libvpx (Google)] || Library for support of Google’s VP* family of codecs; includes libmkv || Tim Terriberry
|-
|-
| [https://www.nagios.org/ Nagios]             || IT management system. Used for notifications of system failures || Sheeri Cabral, Ashish V.
| [https://chromium.googlesource.com/libyuv/libyuv/ libyuv] || Colourspace conversion ||
|-
|-
| [http://netsniff-ng.org/ netsniff-ng]                   || Linux networking toolkit || Michal Purzynski
| [http://llvm.org/                             LLVM] || Compiler foundation for ASAN, static analysis tools, Rust || Unknown
|-
|-
| nICEr                                        || Library for traversing firewalls || Unknown
| [https://lodash.com/                          lodash] || JavaScript utility library, used by many of Mozilla's sites. || Webdev & Firefox Hello
|-
|-
| [https://nixos.org NixOS]                     || Reproducible Linux distribution. Used by some developers || Nicolas B. Pierron
| [https://www.lua.org/                        Lua] || Lua is a powerful, efficient, lightweight, embeddable scripting language, lua_sandbox_extensions || Mike Trinkala
|-
|-
| [https://nodejs.org Node.js]                 || JavaScript runtime for server side applications, command line utilities || Nick Desaulniers
| [https://github.com/macvim-dev/macvim        MacVim] || Mac wrapper around Vim || -
|-
|-
| nrappkit                                      || Toolkit for building standalone applications || Unknown
| [https://www.list.org/                        Mailman] || [https://mail.mozilla.org/listinfo Mailing lists] || Unknown
|-
| [https://pypi.python.org/pypi/marshmallow    marshmallow] || A lightweight library for converting complex datatypes to and from native Python datatypes. || Cloud Services Team
|-
|-
| OpenH264 (Cisco)                              || H.264 video library || Unknown
| [https://www.mediawiki.org/wiki/MediaWiki    MediaWiki] || You are reading this on a wiki || Shyam Mani
|-
|-
| [http://openresty.org OpenResty]             || a fast web app server by extending nginx, used by cloudops || Benson Wong (mostlygeek)
| [https://www.mercurial-scm.org/              Mercurial] || Version control system and source code management || GPS
|-
|-
| [http://www.openssh.com/ OpenSSH]                 || Remote server management, secure transport for Git and Mercurial || Unknown
| [https://www.mesa3d.org/                     Mesa] || 3D graphics library used by Servo & Gecko || Unknown
|-
|-
| [https://www.openstreetmap.org OpenStreetMap]     || Online/offline maps, used by the location service and on mozilla.org || Unknown
| [https://www.meteor.com/                      Meteor] || Build Apps with Javascript - Used in MozDef's Web UI || MozDef Team in EIS
|-
|-
| [http://www.openLDAP.org/ OpenLDAP]                 || User management used by Infra || :jabba?
| [http://mochajs.org/                         Mocha] || JavaScript test runner || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
|-
|-
| [https://openvpn.net/ Openvpn]                 || VPN used by Infra || :jabba?
| [https://github.com/kumar303/mohawk          Mohawk] || Python library for Hawk HTTP authorization. Used by Treeherder and others. || Member of Jonathan Griffin's team
|- 
| [http://mozdef.com                            mozdef] || Security event monitoring and incident response || Jeff Bryner
|-
|-
| [http://www.inspircd.org/ inspircd]                 || Irc server used by mozilla || Unknown
| [http://www.mingw.org/wiki/msys              msys] || Used to build Firefox on Windows. Note: It's likely best we support the newer MSYS2 project instead: https://github.com/msys2 || Unknown
|-
|-
| [http://openssl.org/ OpenSSL]                 || Cryptograpahy and TLS Toolkit || Nick Desaulniers
| [https://www.mysql.com/                       MySQL] || Open source relational DB used by many developers, including AMO, SUMO, Input, bugzilla, releng, adminstered by IT || Matt Pressman
|-
|-
| [https://github.com/khaledhosny/ots OTS]     || OpenType sanitizer used by Firefox to protect against security bugs in underlying platforms related to malicious fonts || Jonathan Kew
| [https://www.nagios.org/                     Nagios] || IT management system. Used for notifications of system failures || Linda Ypulong
|-
|-
| [https://www.owasp.org/index.php/ZAP OWASP ZAP]                 || Web security testing tool used by security and QA teams || Simon Bennetts (psiinon)
| [http://netsniff-ng.org/                     netsniff-ng] || Linux networking toolkit || Michal Purzynski
|-
|-
| [https://owncloud.org/ Owncloud]                 || Open platform to host your cloud under your control || Some communities have been using it to host files under their control (ask Nukeador)
| [https://neovim.io/                           neovim] (nvim) || Next-generation vim code editor || Ralph Giles
|-
|-
| [https://pypi.python.org/pypi/parsimonious/ Parsimonious] || Parsing lib used by DXR and a few other sites (I think) || Erik Rose
| [https://ninja-build.org/                     Ninja] || A small build system with a focus on speed - used by Servo dependencies. || Jack Moffitt
|-
|-
| [https://github.com/mozilla/pdf.js PDF.js]                 || Used as the PDF Viewer in Firefox and Firefox OS || Brendan Dahl, Yury Delendik
| [https://nixos.org/Nix                        Nix] || Reproducible build tool. || Rok Garbas (garbas), Release Engineering Team
|-
|-
| [https://github.com/PyCQA/pep8 pep8] || Python linter. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [https://nixos.org                            NixOS] || Reproducible Linux distribution. Used by some developers || Nicolas B. Pierron
|-
|-
| [https://www.perl.org/ Perl]                 || Used by Bugzilla || Member of Jonathan Griffin's team
| [https://www.nginx.com/                       nginx] || Web Server. Used by almost everything CloudOps runs. || Travis Blow
|-
|-
| [https://github.com/pypa/pip pip] || Python package tool. Used by all Python projects. || Erik Rose and Jannis Leidel, Jannis is core team member ([https://www.pypa.io/ PyPA])
| [https://nodejs.org                          Node.js] || JavaScript runtime for server side applications, command line utilities || Nick Desaulniers
|-
|-
| [http://piwik.org/ Piwik] || Analytic software that gives you the control and respects privacy || Some communities have been using it to avoid GA analytics (Ask Nukeador)
| [http://nrappkit.sourceforge.net/             nrappkit] || Toolkit for building standalone applications || Unknown
|-
|-
| [http://cmusphinx.sourceforge.net/ Pocketsphinx]       || Speech recognition toolkit embedded into Firefox OS|| André Natal
| [http://nsis.sourceforge.net/Main_Page        NSIS] || Windows installer framework || Matt Howell
|-
|-
| [http://www.postgresql.org/ PostgreSQL]       || Open source relational DB used by many developers, adminstered by IT || Selena Deckelmann
| [https://wiki.mozilla.org/NSS                NSS] || Network Security Services || jcjones?
|-
|-
| [https://github.com/PrismJS/prism Prism.js]       || Syntax highlighting on code samples on MDN ||  
| [https://www.gnu.org/software/octave/        Octave] || Numerical analysis/mathematics software. || Jean-Marc Valin
|-
|-
| [https://github.com/puppetlabs/puppet Puppet] || System administration tool || Member of Amy Rich's team
| [https://github.com/cisco/OpenH264            OpenH264] (Cisco) || H.264 video library || Unknown
|-
|-
| [https://github.com/pyflakes/pyflakes pyflakes] || Python linter. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [http://www.openLDAP.org/                     OpenLDAP] || User management used by Infra || :jabba?
|-
|-
| [http://pypy.org/ PyPy]                                       || Python language runtime. Used by Web Push service. || Cloud Services, esp. Ben Bangert
| [http://openresty.org                         OpenResty] || a fast web app server by extending nginx, used by cloudops || Benson Wong (mostlygeek)
|-
|-
| [https://github.com/Pylons/pyramid/ Pyramid] || Python Web framework || Cloud Services team
| [http://www.openssh.com/                     OpenSSH] || Remote server management, secure transport for Git and Mercurial || Unknown
|-
|-
| [http://pytest.org/ pytest] || Python testing tool. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [http://openssl.org/                         OpenSSL] || Cryptograpahy and TLS Toolkit || Nick Desaulniers
|-
|-
| Python                                       || Scripting language || [http://python.org/psf/ Python Software Foundation], Selena Deckelmann is a former board member
| [https://www.openstreetmap.org                OpenStreetMap] || Online/offline maps, used by the location service and on mozilla.org || Unknown
|-
| [https://openvpn.net/                        Openvpn] || VPN used by Infra || :jabba?
|-
| [https://github.com/ValveSoftware/openvr/    OpenVR] || VR hardware support library ||
|-
| [https://github.com/khaledhosny/ots          OTS] || OpenType sanitizer used by Firefox to protect against security bugs in underlying platforms related to malicious fonts || Jonathan Kew
|-
| [https://www.owasp.org/index.php/ZAP          OWASP ZAP] || Web security testing tool used by security and QA teams || Simon Bennetts (psiinon)
|-
| [https://owncloud.org/                        Owncloud] || Open platform to host your cloud under your control || Some communities have been using it to host files under their control (ask Nukeador)
|-
| [http://pandoc.org/                          Pandoc] || universal document converter, lua_sandbox_extensions || Mike Trinkala
|-
| [https://github.com/Parquet/parquet-mr        Parquet-MR] || Parquet-MR contains the java implementation of the Parquet format || Roberto Agostino Vitillo
|-
| [https://github.com/apache/parquet-cpp        parquet-cpp] || C++ library to read and write the Apache Parquet columnar data format, lua_sandbox_extensions || Mike Trinkala
|-
| [https://pypi.python.org/pypi/parsimonious/  Parsimonious] || Parsing lib used by DXR and a few other sites (I think) || Erik Rose
|-
| [https://github.com/mozilla/pdf.js            PDF.js] || Used as the PDF Viewer in Firefox and Firefox OS || Brendan Dahl, Yury Delendik
|-
| [https://pdfium.googlesource.com/pdfium/      PDFium] || PDF viewing and printing in Firefox || Peter Van Der Beken, Evelyn Hung
|-
| [https://github.com/PyCQA/pep8                pep8] || Python linter. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
| [https://www.perl.org/                        Perl] || Used by Bugzilla || Member of Jonathan Griffin's team
|-
| [http://square.github.io/picasso/            Picasso] || Android image fetching framework || Android team
|-
| [http://python-pillow.org/                    pillow] || Python Imaging library || Member of Webcompat team
|-
| [https://github.com/pypa/pip                  pip] || Python package tool. Used by all Python projects. || Erik Rose and Jannis Leidel, Jannis is core team member ([https://www.pypa.io/ PyPA])
|-
| [http://piwik.org/                            Piwik] || Analytic software that gives you the control and respects privacy || Some communities have been using it to avoid GA analytics (Ask Nukeador)
|-
| [http://cmusphinx.sourceforge.net/            Pocketsphinx] || Speech recognition toolkit embedded into Firefox OS|| André Natal
|-
| [http://www.postgresql.org/                  PostgreSQL] || Open source relational DB used by many developers, adminstered by IT || Selena Deckelmann
|-
| [https://github.com/prestodb/presto          Presto] || Distributed SQL query engine for big data. || Roberto Agostino Vitillo
|-
| [https://github.com/PrismJS/prism            Prism.js] || Syntax highlighting on code samples on MDN ||
|-
| [https://www.guardsquare.com/en/proguard      ProGuard] || Java bytecode optimizer; optimizes Firefox for Android || Android team
|-
| [https://github.com/puppetlabs/puppet        Puppet] || System administration tool || Member of Amy Rich's team, Corey Shield's team
|-
| [https://github.com/JetBrains/intellij-community/tree/master/python PyCharm] || Python IDE || Jonathan Griffin
|-
| [https://github.com/pyflakes/pyflakes        pyflakes] || Python linter. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
| [http://pypy.org/                            PyPy] || Python language runtime. Used by Web Push service. || Cloud Services, esp. Ben Bangert
|-
| [https://github.com/Pylons/pyramid/          Pyramid] || Python Web framework || Cloud Services Team
|-
| [http://pytest.org/                          pytest] || Python testing tool. Used by Treeherder and others. || Dave Hunt
|-
| [http://python.org/                          Python] || Scripting language || [http://python.org/psf/ Python Software Foundation], Selena Deckelmann is a former board member
|-
| [https://pypi.python.org/pypi/cryptography    python cryptography] || cryptography is a package which provides cryptographic recipes and primitives to Python developers. || Cloud Services Team
|-
|-
| [https://pypi.python.org/pypi/pyelasticsearch/ pyelasticsearch] || Python client for elasticsearch || Erik Rose
| [https://pypi.python.org/pypi/pyelasticsearch/ pyelasticsearch] || Python client for elasticsearch || Erik Rose
|-
|-
| [https://www.rabbitmq.com/ RabbitMQ]         || 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
| [https://python-jose.readthedocs.io/          python-jose] || a JavaScript Object Signing and Encryption (JOSE) implementation in python || Cloud Services Team
|-
| [https://github.com/jrmuizel/qcms            qcms] || Mozilla fork of lcms ||
|-
| [https://www.rabbitmq.com/                   RabbitMQ] || 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, Jason Thomas
|-
| [http://http://rapidjson.org/                RapidJSON] || A fast JSON parser/generator for C++ with both SAX/DOM style API, lua_sandbox_extensions || Mike Trinkala
|-
| [https://pypi.python.org/pypi/raven          Raven] || Raven is a python client for Sentry || Cloud services Team
|-
| [http://facebook.github.io/react/index.html  ReactJS] || Javascript library for building user interfaces. Used by Firefox Hello & DevTools || Mark Banner, Nicolas Perriault
|-
| [https://readthedocs.org/                    Read the Docs] || Hosted automatically-built documentation, used by Cloud Services and a wide variety of mozilla Github projects || Ben Bangert, Jannis Leidel, Gervase Markham
|-
| [https://redash.io/                          redash] || Data analysis and dashboarding tool || Rob Miller
|-
| [http://redis.io/                            Redis] || Really fast data structure store, cache and message broker || Cloud Services Tarek Ziade's team, Loop Server (Hello) team
|-
| [http://redux.js.org/                        Redux] || Redux is a predictable state container for JavaScript apps. || Jason Laster, Nicolas Perriault
|-
| [https://github.com/redux-saga/redux-saga    Redux-saga] || An alternative side effect model for Redux apps. || Nicolas Perriault
|-
| [http://python-requests.org/                  Requests] || "Python HTTP Requests for Humans". Used by many many Mozilla Python projects. || Member of Jonathan Griffin's team
|-
| [https://www.reviewboard.org/                Review Board] || The base of MozReview, the new review tool being developed to replace Splinter || Steven MacLeod, Mike Conley
|-
| [https://github.com/rietveld-codereview/rietveld Rietveld] || Code Review, hosted on Google App Engine, used by Daala team. || Ralph Giles
|-
| [https://github.com/briansmith/ring          Ring] || Safe, fast, small crypto using Rust. || Diane Hosfelt
|-
| [https://chromium.googlesource.com/external/rlz/ rlz] || Library for grouping promotion event signals and anonymous user cohorts ||
|-
| [https://saltstack.com/                      Salt] || Python-based configuration management software. || Jack Moffitt
|-
| [https://sass-lang.com/                      Sass] || CSS Preprocessor. Most big team web projects use Sass these days. ||
|-
| [http://wordlist.aspell.net/                  SCOWL] || en-US word list used for spell checking. || ehsan
|-
| [https://github.com/sctplab/usrsctp          sctp] || SCTP stack ||
|-
| [http://www.seleniumhq.org/                  Selenium] || Browser test driver || David Burns, Dave Hunt
|-
| [http://sinonjs.org/                          Sinon] || JavaScript mock library || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
|-
| [https://skia.org/                            Skia] || A complete 2D graphic library for drawing Text, Geometries, and Images || Platform Graphics Team
|-
| [https://slimerjs.org/                        SlimerJS] || Scriptable browser, based on Gecko, used for functional tests in some few Mozilla projects ( [[PluotSorbet]], some FxOS apps ? and others ?) || Myk Melez
|-
| [https://github.com/apache/spark/            Spark] || Spark is a fast and general cluster computing system for Big Data. || Roberto Agostino Vitillo
|-
| [http://sphinx-doc.org/                      Sphinx] || Documentation builder used for Fathom, DXR, and probably other projects || Erik Rose
|-
| [http://www.sqlalchemy.org/                  SQLAlchemy] || Database Toolkit and ORM for Python || bhearsum
|-
| [https://www.sqlite.org/                      SQLite] || File-based database || asuth
|-
| [http://www.squid-cache.org/                  Squid] || Caching proxy || Brian Hourigan
|-
| [https://github.com/cisco/libsrtp            SRTP] || SRTP protocol library ||
|-
| [http://stanfordnlp.github.io/CoreNLP/        Stanford CoreNLP] || Natural language analysis tools used in FOSS Heartbeat || Don Marti
|-
|-
| [http://facebook.github.io/react/index.html ReactJS] || Javascript library for building user interfaces. Used by Firefox Hello & DevTools || Mark Banner
| [http://learnboost.github.io/stylus/         Stylus] || CSS Pre-processor on several sites || webdev
|-
|-
| [https://readthedocs.org/ Read the Docs]   || Hosted automatically-built documentation, used by Cloud Services and a wide variety of mozilla Github projects || Ben Bangert, Jannis Leidel, Gervase Markham
| [https://subversion.apache.org/               Subversion] || https://svn.mozilla.org ''(Planning to decommission in near future)'' || Unknown
|-
|-
| [http://redis.io/ Redis]         || Really fast data structure store, cache and message broker || Cloud Services Tarek Ziade's team, Loop Server (Hello) team
| [https://suricata-ids.org/                   suricata] || IDS / IPS / NSM engine || Michal Purzynski
|-
|-
| [http://python-requests.org/ Requests] || "Python HTTP Requests for Humans". Used by many many Mozilla Python projects. || Member of Jonathan Griffin's team
| [http://ternjs.net/                           TernJS] || Code analysis engine for JS ||
|-
|-
| [https://www.reviewboard.org/ Review Board]   || The base of MozReview, the new review tool being developed to replace Splinter || Steven MacLeod, Mike Conley
| [http://threejs.org/                         three.js] || 3D JS library; used by A-Frame || Lars Bergstrom
|-
|-
| [http://wordlist.aspell.net/ SCOWL]         || en-US word list used for spell checking. || ehsan
| [https://tox.readthedocs.org/en/latest/      Tox] || Test automation || Dave Hunt
|-
|-
| [http://www.seleniumhq.org/ Selenium]         || Browser test driver || stephend/AutomatedTester or jrgm/vladikoff
| [https://travis-ci.org/                       Travis] || Continuous integration system used by several teams (eg Treeherder) || Jonathan Griffin's team and Lars Bergstrom
|-
|-
| [http://sinonjs.org/ Sinon] || JavaScript mock library || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
| [https://github.com/twitter/twemoji          twemoji] || Upstream Emoji artwork used in the Firefox built-in Emoji font (minor source) || Tim Chien ([https://github.com/mozilla/emojione-colr See emojione-colr])
|-
|-
| [https://slimerjs.org/ SlimerJS]             || Scriptable browser, based on Gecko, used for functional tests in some few Mozilla projects  ( [[PluotSorbet]], some FxOS apps ? and others ?) || Myk Melez
| [https://unicode.org/                         The Unicode Consortium] || Their work underpins most of what we do || Richard Soderberg
|-
|-
| [https://www.sqlite.org/ SQLite]             || File-based database || khuey
| [https://uwsgi-docs.readthedocs.io/en/latest/ UWSGI] || Full hosting stack used in MozDef || MozDef Team in EIS
|-
|-
| [http://learnboost.github.io/stylus/ Stylus]             || CSS Pre-processor on several sites || webdev
| [https://github.com/mitchellh/vagrant        Vagrant]|| Build and distribute dev envs, used by Treeherder and others || Member of Jonathan Griffin's team
|-
|-
| [https://subversion.apache.org/ Subversion]   || https://svn.mozilla.org ''(Planning to decommission in near future)'' || Unknown
| [http://valgrind.org/                         Valgrind] || Memory error detection and profiling of C and C++ code || jseward, njn
|-
|-
| [http://http://suricata-ids.org/ suricata]                   || IDS / IPS / NSM engine || Michal Purzynski
| [http://www.videolan.org/index.html          VideoLAN] || Free software for multimedia || Timothy B. Terriberry
|-
|-
| [https://tox.readthedocs.org/en/latest/ Tox] || Test automation || Tarek Ziade's Team
| [https://github.com/microsoft/vscode/         vscode] || Code editor || unknown
|-
|-
| [https://travis-ci.org/ Travis]               || Continuous integration system used by several teams (eg Treeherder) || Jonathan Griffin's team
| [http://vim.org/                             vim] || editor used by many developers || —
|-
|-
| [https://github.com/mitchellh/vagrant Vagrant]|| Build and distribute dev envs, used by Treeherder and others || Member of Jonathan Griffin's team
| [https://waffle.io/mozilla/                   waffle.io] || github project management used by various teams ||  
|-
|-
| [http://valgrind.org/ Valgrind]               || Memory error detection and profiling of C and C++ code || jseward, njn
| [https://github.com/w3c/web-platform-tests    web-platform-tests] || Testcases and tooling for cross-browser testing of web-platform APIs || jgraham
|-
|-
| [http://vim.org/ vim] || editor used by many developers || —
| [https://webpack.github.io/                   WebPack] || A bundler for javascript and friends || Nicolas Perriault
|-
|-
| [https://github.com/w3c/web-platform-tests web-platform-tests] || Testcases and tooling for cross-browser testing of web-platform APIs                                            || jgraham
| [http://www.webrtc.org                        WebRTC.org] || Components to support real-time communication in browsers and mobile applications || Randell Jesup
|-
|-
| [http://www.webrtc.org WebRTC.org]           || Components to support real-time communication in browsers and mobile applications || Randell Jesup
| [https://github.com/google/woff2              woff2] || Reference library for WOFF font format ||
|-
|-
| [http://www.wordpress.org WordPress]         || Powers our blogs, blog.mozilla.org || Craig Cook  
| [http://www.wordpress.org                     WordPress] || Powers our blogs, blog.mozilla.org || Craig Cook  
|-
|-
| [https://xiph.org Xiph.Org]                   || Media codecs ship in Firefox, encoding tools || Ralph Giles
| [https://www.webtoolkit.eu/wt                Wt] || C++ library for developing web applications, hindsight_admin || Mike Trinkala
|-
|-
| [http://zlib.net zlib]                   || Streaming compression and decompression for HTTP, PNG, etc. ||
| [https://github.com/kroeckx/x509lint          x509lint] || Certificate checking tool, used by the Root Store team || Kathleen Wilson
 
|-
| [https://xiph.org                            Xiph.Org] || Media codecs ship in Firefox, encoding tools; includes libogg || Ralph Giles
|-
| [https://github.com/Cyan4973/xxHash          xxHash] || Extremely fast non-cryptographic hash algorithm, lua_sandbox_extensions || Mike Trinkala
|-
| [http://tukaani.org/xz/embedded.html          XZ Embedded] || Decompressor for the XZ format ||
|-
| [http://yasm.tortall.net/                    yasm] || Assembler used by the build system. || unknown
|-,
| [https://valloric.github.io/YouCompleteMe/    YouCompleteMe] || Code completion engine for vim editors || Ehsan Akhgari
|-
| [http://zlib.net                             zlib] || Streaming compression and decompression for HTTP, PNG, etc. ||
|-
| [https://blog.zappa.io/                Zappa Serverless Framework] || Framework for porting Flask, Djangon, other python apps to aws Lambda.  Used in Risk Heatmap and Second Opinion || Andrew Krug 
|-
| [https://zookeeper.apache.org/                ZooKeeper] || Distributed synchronization, use by hg.mozilla.org replication || gps
|}
|}

Latest revision as of 13:26, 24 October 2017

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.

Note that presence on this list isn't the same as, nor is it a prerequisite for, applying for the MOSS "Foundational Technology" track - projects have to make an application using the process on the Foundational Technology page.

This is a work in progress - please contribute to this list. Note that it's in alphabetical order.

Project Description and Use Contact within Mozilla
Adjust Mobile app analytics; used to track installs on Firefox for Android & other products Android & iOS teams
Airflow Airflow is a platform to programmatically author, schedule and monitor workflows. Roberto Agostino Vitillo
American Fuzzy Lop A security-oriented fuzzer. Unknown
ANGLE A conformant OpenGL ES implementation for Windows, Mac and Linux Platform Graphics Team
angular.js Used by A-Team for web apps (eg Treeherder) Member of Jonathan Griffin's team
Apache Server Used by A-Team for web apps Member of Jonathan Griffin's team
Ansible Used by IT (netops) and A-Team to manage deployments jbarnell , Webops, GPS?
AreWeFastYet Compare JS performance across JS engines and platforms Hannes Verschore
Argon Used as the foundation for mobile AR web browser research by Emerging Tech Blair MacIntyre
Atom Used (either vanilla or e.g. as [1] ) by various developers
BabelJS JavaScript compiler, Used by Gaia, TaskCluster team Selena Deckelmann
BIND DNS Server Brian Hourigan
Bleach HTML sanitizing library that escapes or strips markup and attributes used by MDN and a bunch of Mozilla sites Will Kahn-Greene
Blessings Terminal formatting lib used by mozilla-central build process Erik Rose
Blink Web Audio Web audio implementation from Blink
Bootstrap HTML/CSS/JS framework, used by many of Mozilla's sites. Webdev
bro The Bro Network Security Monitor Michal Purzynski
brotli Compression library
Browserify Build JS dependencies for the browser mozilla-services (kinto.js)
BuildBot The base system currently in use for release Dustin J. Mitchell
Bugzilla (upstream) The base Bugzilla on that we customize for Mozilla's use Mark Côté
Cairo Vector graphics-based, device independent API; includes pixman Jeff Muizelaar
ccache A compiler cache; used by Servo and Gecko builds Ted Mielczarek
Celery Distributed task queue. Used by Treeherder and others. Member of Jonathan Griffin's team
certlint Certificate checking tool, used by the Root Store team Kathleen Wilson
cffi C Foreign Function Interface for Python. Cloud Services Team
CKEditor WYSIWYG editor on MDN
CLDR Common Locale Data Repository - Unicode data
CMake cross-platform family of tools designed to build, test and package software, lua_sandbox, lua_sandbox_extensions, hindsight, hindsight_admin Mike Trinkala
Chai JavaScript test and assertion library Cloud Services, Tarek Ziade's team (kinto.js), Firefox Hello team
Chromium Embedded Framework A simple framework for embedding browsers in other applications Jack Moffitt
Clang/LLVM C/C++ compiler and infrastructure Ehsan Akhgari & Sylvestre Ledru
CodeMirror Used in DevTools, Thimble, and other online code tools David Humphrey/Simon Wex
Cookiecutter Templating system used to clone our Sugardough Django template Giorgos Logiotatidis
Compiler Explorer - C++ Online C++ compiler with assembly output. Used by devs to test&optimize code snippets. Unknown
Compiler Explorer - Rust Online Rust compiler with assembly output. Used by devs to test&optimize code snippets. Unknown
ConEmu Console emulator for Windows. Used by devs running Windows. Ed Morley
ConfigArgParse A drop-in replacement for argparse that allows options to also be set via config files and/or environment variables Cloud Services Team
crt.sh Global certificate corpus search website Gervase Markham
cubeb Cross-platform audio library
curl internet transfer tool and library, used by crashreporter and FirefoxOS Daniel Stenberg
Debian Used on many developer boxes Sylvestre Ledru or glandium
Deis Open Source Heroku-like PaaS platform. Hosts www.mozilla.org, masterfirefoxos.mozilla.org, etc. Member of Benjamin Sternthal's team
Disconnect.me Open, transparent, neutral Tracking Protection blocklist used in Firefox Private Browsing Windows Marshall Erwin, Javaun Moradi, Francois Marier
Discourse Community, Webmaker, Advocacy, et al Community Ops (Yousef Alam or Tanner Filip)
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, nucleus, Treeherder Andy McKay and Jannis Leidel are (or have been) on the Django Software Foundation board, Jannis is core team member
Django REST framework API framework. Used by various Mozilla sites including MDN, Firefox marketplace, mozilla.org, support.mozilla.com. Andy McKay and Jannis Leidel
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
double-conversion Efficient binary-decimal and decimal-binary conversion routines for IEEE doubles
Doxygen tool for generating documentation from annotated sources, lua_sandbox Mike Trinkala
Drupal Open Source CMS. Used by Dev Rel team. Potch
ecdsa ECDSA cryptographic signature library (pure python) Cloud Services Team
Eclipse Integrated Development Environment used by many developers —
editline Line editing library (from libedit)
elasticsearch Search engine for various web sites and analytics Erik Rose (dxr), Kyle Lahnakoski (ActiveData), Jason Thomas
Elm A delightful language for reliable webapps. Rok Garbas (garbas), Release Engineering Team
emacs Programmable editor used by many developers —
EmojiOne Upstream Emoji artwork used in the Firefox built-in Emoji font Tim Chien (See emojione-colr)
eslint Pluggable linting utiltity used by Firefox Hello, DevTools and Firefox Android Mark Banner, Nicolas Perriault
Etherpad Used for meeting notes, etc JP Schneider
fdlibm ???
ffmpeg Used for media decoding. Jean-Yves Avenard
flake8 Wrapper around Python linters. Used by Treeherder and others. Member of Jonathan Griffin's team
Flask Python web framework Erik Rose
Flow A static type checker for JavaScript Greg Tatum, Jason Laster, Nicolas Perriault
Font Awesome Font and CSS toolkit, used by many of Mozilla's sites. Webdev
FontForge Built-in Emoji font compilation Tim Chien (See emojione-colr)
FontTools Built-in Emoji font compilation Tim Chien (See emojione-colr)
Foundation Framework Responsive front-end framework, used by some Mozilla sites and add-ons Luke Crouch
FreeType Small, efficient, highly customizable, and portable library for producing high-quality output (glyph images) of most vector and bitmap font formats. Platform team
GCC C/C++ compiler and infrastructure Nathan Froyd
GDB The GNU Debugger, the sole debugger for Linux Jim Blandy
Git Version control system - https://git.mozilla.org Unknown
Glitz OpenGL image compositing library
Gradle Build automation system; used to build Firefox for Android Android team
Graphite Graphite is a "smart font" system developed specifically to handle the complexities of lesser-known languages of the world. Platform team
gunicorn Python WSGI HTTP Server. Used by Treeherder, Socorro, Pontoon. Webdev
Hive The Apache Hive data warehouse software facilitates reading, writing, and managing large datasets residing in distributed storage using SQL. Roberto Agostino Vitillo
HarfBuzz International text shaping engine used in Firefox/Servo Platform team
HBase HBase is an open-source, distributed, versioned, column-oriented store modeled after Bigtable. Roberto Agostino Vitillo
brew / Homebrew Mac OS X packaging system, used to install dev tools Sam Penrose
Homu A bot that integrates with your favorite continuous integration service; used by Rust and Servo Jack Moffitt
Hunspell Spellchecking engine Ehsan Akhgari
Hyphen Hyphenation library Jonathan Kew
HTTPie HTTP command-line client Cloud Services (among many others), Tarek Ziade's team
hyper Hyper is a set of related projects that provide HTTP/2 functionality to Python projects. Cloud Services Team
Hyper A fast, modern HTTP implementation written in and for Rust; used by Servo Sean McArthur
Icecream (icecc) Distributed build system, used to speed up local Firefox build times in some Mozilla offices Daniel Holbert, or contributors on the Icecream MDN Page
ICU (And ICU4J) International Components for Unicode - internationalization library
ideone.com Online compiler & runner for a number of languages. Used by devs to test&benchmark code snippets. Unknown
inspircd Irc server used by mozilla :ashish
Intern 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 Memory allocation library We can ask glandium
Jenkins CI Continuous integration system used by WebQA and EE Unknown
jQuery JavaScript library, used by many of Mozilla's sites. Webdev
jsdom DOM implementation in full JS Test suites in Cloud Services, Tarek Ziade's team (kinto.js)
jsoncpp A C++ library for interacting with JSON, used by the crashreporter client and Socorro. Gabriele Svelto
jsPsych A JavaScript library for creating and running behavioral experiments in a web browser. Josh Gaunt
Jupyter Notebook The Jupyter notebook is a web-based notebook environment for interactive computing. Roberto Agostino Vitillo
Kafka Distributed transaction log, used for hg.mozilla.org replication. gps
kissfft FFT library, presumably
Knowledge Repo The Knowledge Repository project is focused on facilitating the sharing of knowledge between data scientists and other technical roles using data formats and tools that make sense in these professions. Roberto Agostino Vitillo
Kombu Messaging library for Python. Used by Treeherder and others. Member of Jonathan Griffin's team
LaTeX A document preparation system. Alan Jeffrey (ajeffrey)
Leak Canary Android memory leak detection framework Android team
libav Audio and video libraries
libbz2 Compression library for .bz2 format Julian Seward
libevent Provides a mechanism to execute a callback function when a specific event occurs on a file descriptor or after a timeout has been reached. Platform team
libffi A Portable Foreign Function Interface Library. Platform team
libjpeg-turbo JPEG decoding library Jeff Muizelaar
libnestegg WebM demuxer
libpng PNG decoding library Jeff Muizelaar
libvpx (Google) Library for support of Google’s VP* family of codecs; includes libmkv Tim Terriberry
libyuv Colourspace conversion
LLVM Compiler foundation for ASAN, static analysis tools, Rust Unknown
lodash JavaScript utility library, used by many of Mozilla's sites. Webdev & Firefox Hello
Lua Lua is a powerful, efficient, lightweight, embeddable scripting language, lua_sandbox_extensions Mike Trinkala
MacVim Mac wrapper around Vim -
Mailman Mailing lists Unknown
marshmallow A lightweight library for converting complex datatypes to and from native Python datatypes. Cloud Services Team
MediaWiki You are reading this on a wiki Shyam Mani
Mercurial Version control system and source code management GPS
Mesa 3D graphics library used by Servo & Gecko Unknown
Meteor Build Apps with Javascript - Used in MozDef's Web UI MozDef Team in EIS
Mocha JavaScript test runner Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
Mohawk Python library for Hawk HTTP authorization. Used by Treeherder and others. Member of Jonathan Griffin's team
mozdef Security event monitoring and incident response Jeff Bryner
msys Used to build Firefox on Windows. Note: It's likely best we support the newer MSYS2 project instead: https://github.com/msys2 Unknown
MySQL Open source relational DB used by many developers, including AMO, SUMO, Input, bugzilla, releng, adminstered by IT Matt Pressman
Nagios IT management system. Used for notifications of system failures Linda Ypulong
netsniff-ng Linux networking toolkit Michal Purzynski
neovim (nvim) Next-generation vim code editor Ralph Giles
Ninja A small build system with a focus on speed - used by Servo dependencies. Jack Moffitt
Nix Reproducible build tool. Rok Garbas (garbas), Release Engineering Team
NixOS Reproducible Linux distribution. Used by some developers Nicolas B. Pierron
nginx Web Server. Used by almost everything CloudOps runs. Travis Blow
Node.js JavaScript runtime for server side applications, command line utilities Nick Desaulniers
nrappkit Toolkit for building standalone applications Unknown
NSIS Windows installer framework Matt Howell
NSS Network Security Services jcjones?
Octave Numerical analysis/mathematics software. Jean-Marc Valin
OpenH264 (Cisco) H.264 video library Unknown
OpenLDAP User management used by Infra :jabba?
OpenResty a fast web app server by extending nginx, used by cloudops Benson Wong (mostlygeek)
OpenSSH Remote server management, secure transport for Git and Mercurial Unknown
OpenSSL Cryptograpahy and TLS Toolkit Nick Desaulniers
OpenStreetMap Online/offline maps, used by the location service and on mozilla.org Unknown
Openvpn VPN used by Infra :jabba?
OpenVR VR hardware support library
OTS OpenType sanitizer used by Firefox to protect against security bugs in underlying platforms related to malicious fonts Jonathan Kew
OWASP ZAP Web security testing tool used by security and QA teams Simon Bennetts (psiinon)
Owncloud Open platform to host your cloud under your control Some communities have been using it to host files under their control (ask Nukeador)
Pandoc universal document converter, lua_sandbox_extensions Mike Trinkala
Parquet-MR Parquet-MR contains the java implementation of the Parquet format Roberto Agostino Vitillo
parquet-cpp C++ library to read and write the Apache Parquet columnar data format, lua_sandbox_extensions Mike Trinkala
Parsimonious Parsing lib used by DXR and a few other sites (I think) Erik Rose
PDF.js Used as the PDF Viewer in Firefox and Firefox OS Brendan Dahl, Yury Delendik
PDFium PDF viewing and printing in Firefox Peter Van Der Beken, Evelyn Hung
pep8 Python linter. Used by Treeherder and others. Member of Jonathan Griffin's team
Perl Used by Bugzilla Member of Jonathan Griffin's team
Picasso Android image fetching framework Android team
pillow Python Imaging library Member of Webcompat team
pip Python package tool. Used by all Python projects. Erik Rose and Jannis Leidel, Jannis is core team member (PyPA)
Piwik Analytic software that gives you the control and respects privacy Some communities have been using it to avoid GA analytics (Ask Nukeador)
Pocketsphinx Speech recognition toolkit embedded into Firefox OS André Natal
PostgreSQL Open source relational DB used by many developers, adminstered by IT Selena Deckelmann
Presto Distributed SQL query engine for big data. Roberto Agostino Vitillo
Prism.js Syntax highlighting on code samples on MDN
ProGuard Java bytecode optimizer; optimizes Firefox for Android Android team
Puppet System administration tool Member of Amy Rich's team, Corey Shield's team
PyCharm Python IDE Jonathan Griffin
pyflakes Python linter. Used by Treeherder and others. Member of Jonathan Griffin's team
PyPy Python language runtime. Used by Web Push service. Cloud Services, esp. Ben Bangert
Pyramid Python Web framework Cloud Services Team
pytest Python testing tool. Used by Treeherder and others. Dave Hunt
Python Scripting language Python Software Foundation, Selena Deckelmann is a former board member
python cryptography cryptography is a package which provides cryptographic recipes and primitives to Python developers. Cloud Services Team
pyelasticsearch Python client for elasticsearch Erik Rose
python-jose a JavaScript Object Signing and Encryption (JOSE) implementation in python Cloud Services Team
qcms Mozilla fork of lcms
RabbitMQ 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, Jason Thomas
RapidJSON A fast JSON parser/generator for C++ with both SAX/DOM style API, lua_sandbox_extensions Mike Trinkala
Raven Raven is a python client for Sentry Cloud services Team
ReactJS Javascript library for building user interfaces. Used by Firefox Hello & DevTools Mark Banner, Nicolas Perriault
Read the Docs Hosted automatically-built documentation, used by Cloud Services and a wide variety of mozilla Github projects Ben Bangert, Jannis Leidel, Gervase Markham
redash Data analysis and dashboarding tool Rob Miller
Redis Really fast data structure store, cache and message broker Cloud Services Tarek Ziade's team, Loop Server (Hello) team
Redux Redux is a predictable state container for JavaScript apps. Jason Laster, Nicolas Perriault
Redux-saga An alternative side effect model for Redux apps. Nicolas Perriault
Requests "Python HTTP Requests for Humans". Used by many many Mozilla Python projects. Member of Jonathan Griffin's team
Review Board The base of MozReview, the new review tool being developed to replace Splinter Steven MacLeod, Mike Conley
Rietveld Code Review, hosted on Google App Engine, used by Daala team. Ralph Giles
Ring Safe, fast, small crypto using Rust. Diane Hosfelt
rlz Library for grouping promotion event signals and anonymous user cohorts
Salt Python-based configuration management software. Jack Moffitt
Sass CSS Preprocessor. Most big team web projects use Sass these days.
SCOWL en-US word list used for spell checking. ehsan
sctp SCTP stack
Selenium Browser test driver David Burns, Dave Hunt
Sinon JavaScript mock library Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
Skia A complete 2D graphic library for drawing Text, Geometries, and Images Platform Graphics Team
SlimerJS Scriptable browser, based on Gecko, used for functional tests in some few Mozilla projects ( PluotSorbet, some FxOS apps ? and others ?) Myk Melez
Spark Spark is a fast and general cluster computing system for Big Data. Roberto Agostino Vitillo
Sphinx Documentation builder used for Fathom, DXR, and probably other projects Erik Rose
SQLAlchemy Database Toolkit and ORM for Python bhearsum
SQLite File-based database asuth
Squid Caching proxy Brian Hourigan
SRTP SRTP protocol library
Stanford CoreNLP Natural language analysis tools used in FOSS Heartbeat Don Marti
Stylus CSS Pre-processor on several sites webdev
Subversion https://svn.mozilla.org (Planning to decommission in near future) Unknown
suricata IDS / IPS / NSM engine Michal Purzynski
TernJS Code analysis engine for JS
three.js 3D JS library; used by A-Frame Lars Bergstrom
Tox Test automation Dave Hunt
Travis Continuous integration system used by several teams (eg Treeherder) Jonathan Griffin's team and Lars Bergstrom
twemoji Upstream Emoji artwork used in the Firefox built-in Emoji font (minor source) Tim Chien (See emojione-colr)
The Unicode Consortium Their work underpins most of what we do Richard Soderberg
UWSGI Full hosting stack used in MozDef MozDef Team in EIS
Vagrant Build and distribute dev envs, used by Treeherder and others Member of Jonathan Griffin's team
Valgrind Memory error detection and profiling of C and C++ code jseward, njn
VideoLAN Free software for multimedia Timothy B. Terriberry
vscode Code editor unknown
vim editor used by many developers —
waffle.io github project management used by various teams
web-platform-tests Testcases and tooling for cross-browser testing of web-platform APIs jgraham
WebPack A bundler for javascript and friends Nicolas Perriault
WebRTC.org Components to support real-time communication in browsers and mobile applications Randell Jesup
woff2 Reference library for WOFF font format
WordPress Powers our blogs, blog.mozilla.org Craig Cook
Wt C++ library for developing web applications, hindsight_admin Mike Trinkala
x509lint Certificate checking tool, used by the Root Store team Kathleen Wilson
Xiph.Org Media codecs ship in Firefox, encoding tools; includes libogg Ralph Giles
xxHash Extremely fast non-cryptographic hash algorithm, lua_sandbox_extensions Mike Trinkala
XZ Embedded Decompressor for the XZ format
yasm Assembler used by the build system. unknown
YouCompleteMe Code completion engine for vim editors Ehsan Akhgari
zlib Streaming compression and decompression for HTTP, PNG, etc.
Zappa Serverless Framework Framework for porting Flask, Djangon, other python apps to aws Lambda. Used in Risk Heatmap and Second Opinion Andrew Krug
ZooKeeper Distributed synchronization, use by hg.mozilla.org replication gps
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