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://www.adjust.com/ Adjust] || Mobile app analytics; used to track installs on Firefox for Android & other products || Android & iOS teams
| [https://www.adjust.com/                     Adjust] || Mobile app analytics; used to track installs on Firefox for Android & other products || Android & iOS teams
|-
|-
| [https://github.com/apache/incubator-airflow/ Airflow] || Airflow is a platform to programmatically author, schedule and monitor workflows. || Roberto Agostino Vitillo
| [https://github.com/apache/incubator-airflow/ Airflow] || Airflow is a platform to programmatically author, schedule and monitor workflows. || Roberto Agostino Vitillo
|-
|-
| [http://lcamtuf.coredump.cx/afl/ American Fuzzy Lop] || A security-oriented fuzzer. || Unknown
| [http://lcamtuf.coredump.cx/afl/             American Fuzzy Lop] || A security-oriented fuzzer. || Unknown
|-
|-
| [http://angleproject.org/ ANGLE]             || A conformant OpenGL ES implementation for Windows, Mac and Linux || Platform Graphics Team
| [http://angleproject.org/                     ANGLE] || A conformant OpenGL ES implementation for Windows, Mac and Linux || Platform Graphics Team
|-
|-
| [https://angularjs.org/ angular.js]           || Used by A-Team for web apps (eg Treeherder) || Member of Jonathan Griffin's team
| [https://angularjs.org/                       angular.js] || Used by A-Team for web apps (eg Treeherder) || Member of Jonathan Griffin's team
|-
|-
| [https://httpd.apache.org Apache Server]     || Used by A-Team for web apps || Member of Jonathan Griffin's team
| [https://httpd.apache.org                     Apache Server] || Used by A-Team for web apps || Member of Jonathan Griffin's team
|-
|-
| [https://github.com/ansible/ansible Ansible] || Used by IT (netops) and A-Team to manage deployments || jbarnell , Webops, GPS?
| [https://github.com/ansible/ansible           Ansible] || Used by IT (netops) and A-Team to manage deployments || jbarnell , Webops, GPS?
|-
|-
| [https://github.com/h4writer/arewefastyet AreWeFastYet] || Compare JS performance across JS engines and platforms || Hannes Verschore
| [https://github.com/h4writer/arewefastyet     AreWeFastYet] || Compare JS performance across JS engines and platforms || Hannes Verschore
|-
|-
| [https://github.com/argonjs Argon] || Used as the foundation for mobile AR web browser research by Emerging Tech || Blair MacIntyre
| [https://github.com/argonjs                   Argon] || Used as the foundation for mobile AR web browser research by Emerging Tech || Blair MacIntyre
|-
|-
| [https://atom.io/ Atom]                       || Used (either vanilla or e.g. as [https://github.com/Microsoft/vscode] ) by various developers ||
| [https://atom.io/                             Atom] || Used (either vanilla or e.g. as [https://github.com/Microsoft/vscode] ) by various developers ||
|-
|-
| [https://babeljs.io/ BabelJS]                 || JavaScript compiler, Used by Gaia, TaskCluster team || Selena Deckelmann
| [https://babeljs.io/                         BabelJS] || JavaScript compiler, Used by Gaia, TaskCluster team || Selena Deckelmann
|-
|-
| [https://www.isc.org/downloads/bind/ BIND] || DNS Server || Brian Hourigan
| [https://www.isc.org/downloads/bind/         BIND] || DNS Server || Brian Hourigan
|-
|-
| [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
| [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
|-
|-
| [https://pypi.python.org/pypi/blessings/ Blessings] || Terminal formatting lib used by mozilla-central build process || Erik Rose
| [https://pypi.python.org/pypi/blessings/     Blessings] || Terminal formatting lib used by mozilla-central build process || Erik Rose
|-
|-
| [http://getbootstrap.com/ Bootstrap] || HTML/CSS/JS framework, used by many of Mozilla's sites. || Webdev
| [https://chromium.googlesource.com/chromium/blink/+log/master/Source/modules/webaudio Blink Web Audio] || Web audio implementation from Blink ||  
|-
|-
| [http://brew.sh/ brew / Homebrew] || Mac OS X packaging system, used to install dev tools || Sam Penrose
| [http://getbootstrap.com/                     Bootstrap] || HTML/CSS/JS framework, used by many of Mozilla's sites. || Webdev
|-
|-
| [https://bro.org bro]                   || The Bro Network Security Monitor || Michal Purzynski
| [https://bro.org                             bro] || The Bro Network Security Monitor || Michal Purzynski
|-
|-
| [http://browserify.org Browserify]                   || Build JS dependencies for the browser || mozilla-services (kinto.js)
| [https://github.com/google/brotli            brotli] || Compression library ||
|-
|-
| [http://buildbot.net/ BuildBot]               || The base system currently in use for release || Dustin J. Mitchell
| [http://browserify.org                        Browserify] || Build JS dependencies for the browser || mozilla-services (kinto.js)
|-
|-
| [http://bugzilla.org/ Bugzilla] (upstream)    || The base Bugzilla on that we customize for Mozilla's use || Mark Côté
| [http://buildbot.net/                         BuildBot] || The base system currently in use for release || Dustin J. Mitchell
|-
|-
| [https://www.cairographics.org/ Cairo] || Vector graphics-based, device independent API. || Jeff Muizelaar
| [http://bugzilla.org/                         Bugzilla] (upstream) || The base Bugzilla on that we customize for Mozilla's use || Mark Côté
|-
|-
| [https://ccache.samba.org/ ccache] || A compiler cache. || Ted Mielczarek
| [https://www.cairographics.org/               Cairo] || Vector graphics-based, device independent API; includes pixman || Jeff Muizelaar
|-
|-
| [http://www.celeryproject.org/ Celery] || Distributed task queue. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [https://ccache.samba.org/                   ccache] || A compiler cache; used by Servo and Gecko builds || Ted Mielczarek
|-
|-
| [http://cffi.readthedocs.io/en/latest/ cffi] || C Foreign Function Interface for Python. || Cloud Services Team
| [http://www.celeryproject.org/               Celery] || Distributed task queue. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| [http://ckeditor.com/ CKEditor] || WYSIWYG editor on MDN ||  
| [https://github.com/awslabs/certlint          certlint] || Certificate checking tool, used by the Root Store team || Kathleen Wilson
|-
|-
| [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
| [http://cffi.readthedocs.io/en/latest/       cffi] || C Foreign Function Interface for Python. || Cloud Services Team
|-
|-
| [http://chaijs.com/ Chai] || JavaScript test and assertion library || Cloud Services, Tarek Ziade's team (kinto.js), Firefox Hello team
| [http://ckeditor.com/                         CKEditor] || WYSIWYG editor on MDN ||
|-
|-
| [https://bitbucket.org/chromiumembedded/cef Chromium Embedded Framework] || A simple framework for embedding browsers in other applications || Jack Moffitt
| [http://unicode.org/cldr/trac/browser/trunk  CLDR] || Common Locale Data Repository - Unicode data ||
|-
|-
| [http://www.llvm.org Clang/LLVM]           || C/C++ compiler and infrastructure || Ehsan Akhgari & Sylvestre Ledru
| [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://codemirror.net/ CodeMirror]           || Used in DevTools, [https://thimble.mozilla.org Thimble], and other online code tools || David Humphrey/Simon Wex
| [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/cookiecutter/ Cookiecutter] || Templating system used to clone our [https://github.com/mozilla/sugardough Sugardough] Django template || Giorgos Logiotatidis
| [https://bitbucket.org/chromiumembedded/cef  Chromium Embedded Framework] || A simple framework for embedding browsers in other applications || Jack Moffitt
|-
|-
| [https://conemu.github.io/ ConEmu] || Console emulator for Windows. Used by devs running Windows. || Ed Morley
| [http://www.llvm.org                          Clang/LLVM] || C/C++ compiler and infrastructure || Ehsan Akhgari & Sylvestre Ledru
|-
|-
| [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
| [https://codemirror.net/                     CodeMirror] || Used in DevTools, [https://thimble.mozilla.org Thimble], and other online code tools || David Humphrey/Simon Wex
|-
|-
| [http://crt.sh/ crt.sh] || Global certificate corpus search website || Gervase Markham
| [https://pypi.python.org/pypi/cookiecutter/   Cookiecutter] || Templating system used to clone our [https://github.com/mozilla/sugardough Sugardough] Django template || Giorgos Logiotatidis
|-
|-
| [http://curl.haxx.se/ curl] || internet transfer tool and library, used by crashreporter and FirefoxOS || Daniel Stenberg
| [https://gcc.godbolt.org/                     Compiler Explorer - C++] || Online C++ compiler with assembly output. Used by devs to test&optimize code snippets. || Unknown
|-
|-
| [https://www.debian.org/ Debian] || Used on many developer boxes || Sylvestre Ledru or glandium
| [https://rust.godbolt.org/                   Compiler Explorer - Rust] || Online Rust compiler with assembly output. Used by devs to test&optimize code snippets. || Unknown
|-
|-
| [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://conemu.github.io/                    ConEmu] || Console emulator for Windows. Used by devs running Windows. || Ed Morley
|-
|-
| [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://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
|-
|-
| [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)
| [http://crt.sh/                               crt.sh] || Global certificate corpus search website || Gervase Markham
|-
|-
| [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://github.com/kinetiknz/cubeb.git        cubeb] || Cross-platform audio library ||  
|-
|-
| [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
| [http://curl.haxx.se/                        curl] || internet transfer tool and library, used by crashreporter and FirefoxOS || Daniel Stenberg
|-
|-
| [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://www.debian.org/                     Debian] || Used on many developer boxes || Sylvestre Ledru or glandium
|-
|-
| [http://www.stack.nl/~dimitri/doxygen/ Doxygen] || tool for generating documentation from annotated sources, lua_sandbox || Mike Trinkala 
| [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://drupal.org/ Drupal] || Open Source CMS. Used by Dev Rel team. || Potch
| [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://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 || —
|-
|-
| [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
| [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://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://www.gnu.org/software/emacs/ emacs] || Programmable editor used by many developers ||
| [http://eslint.org/                           eslint] || Pluggable linting utiltity used by Firefox Hello, DevTools and Firefox Android || Mark Banner, Nicolas Perriault
|-
|-
| [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])
| [https://github.com/ether/etherpad-lite      Etherpad] || Used for meeting notes, etc || JP Schneider
|-
|-
| [http://eslint.org/ eslint] || Pluggable linting utiltity used by Firefox Hello, DevTools and Firefox Android || Mark Banner, Nicolas Perriault
| [https://github.com/freebsd/freebsd/tree/master/lib/msun/src fdlibm] || ??? ||  
|-
|-
| [https://github.com/ether/etherpad-lite Etherpad]     || Used for meeting notes, etc || JP Schneider
| [https://ffmpeg.org/                         ffmpeg] || Used for media decoding. || Jean-Yves Avenard
|-
|-
| [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
|-
|-
| [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
|-
|-
| [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://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
|-
|-
| [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])
|-
|-
| [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])
|-
|-
| [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
|-
|-
| [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
|-
|-
| [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://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
|-
|-
| [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://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
| [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://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
| [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
| [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
|-
|-
| [https://github.com/apache/hbase/ HBase] || HBase is an open-source, distributed, versioned, column-oriented store modeled after Bigtable. || Roberto Agostino Vitillo
| [https://github.com/apache/hbase/             HBase] || HBase is an open-source, distributed, versioned, column-oriented store modeled after Bigtable. || Roberto Agostino Vitillo
|-
|-
| [http://homu.io/ Homu] || A bot that integrates with your favorite continuous integration service || Jack Moffitt
| [http://brew.sh/ brew /                      Homebrew] || Mac OS X packaging system, used to install dev tools || Sam Penrose
|-
|-
| [http://hunspell.sourceforge.net/ Hunspell] || Spellchecking engine || Ehsan Akhgari
| [http://homu.io/                             Homu] || A bot that integrates with your favorite continuous integration service; used by Rust and Servo || Jack Moffitt
|-
|-
| [https://github.com/hunspell/hyphen/ Hyphen] || Hyphenation library || Jonathan Kew
| [http://hunspell.sourceforge.net/             Hunspell] || Spellchecking engine || Ehsan Akhgari
|-
|-
| [https://github.com/jkbrzt/httpie HTTPie] || HTTP command-line client || Cloud Services (among many others), Tarek Ziade's team
| [https://github.com/hunspell/hyphen/          Hyphen] || Hyphenation library || Jonathan Kew
|-
|-
| [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://github.com/jkbrzt/httpie            HTTPie] || HTTP command-line client || Cloud Services (among many others), Tarek Ziade's team
|-
|-
| [https://hyper.rs/hyper/v0.10.0/hyper/index.html Hyper] || A fast, modern HTTP implementation written in and for Rust. || Sean McArthur
| [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://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://hyper.rs/hyper/v0.10.0/hyper/        Hyper] || A fast, modern HTTP implementation written in and for Rust; used by Servo || Sean McArthur
|-
|-
| [http://www.inspircd.org/ inspircd]                 || Irc server used by mozilla || :ashish
| [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://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://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://canonware.com/jemalloc/ jemalloc]     || Memory allocation library || We can ask glandium
|-
| [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
|-
| [http://canonware.com/jemalloc/               jemalloc] || Memory allocation library || We can ask glandium
|-
|-
| [http://jenkins-ci.org/ Jenkins CI]                   || Continuous integration system used by WebQA and EE || Unknown
| [http://jenkins-ci.org/                       Jenkins CI] || Continuous integration system used by WebQA and EE || Unknown
|-
|-
| [https://jquery.com/ jQuery] || JavaScript library, used by many of Mozilla's sites. || Webdev
| [https://jquery.com/                         jQuery] || JavaScript library, used by many of Mozilla's sites. || Webdev
|-
|-
| [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/tmpvar/jsdom             jsdom] || DOM implementation in full JS || Test suites in Cloud Services, Tarek Ziade's team (kinto.js)
|-
|-
| [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://github.com/open-source-parsers/jsoncpp jsoncpp] || A C++ library for interacting with JSON, used by the crashreporter client and Socorro. || Gabriele Svelto
|-
|-
| [https://github.com/jodeleeuw/jsPsych jsPsych] || A JavaScript library for creating and running behavioral experiments in a web browser. || Josh Gaunt
| [https://github.com/jodeleeuw/jsPsych         jsPsych] || A JavaScript library for creating and running behavioral experiments in a web browser. || Josh Gaunt
|-
|-
| [https://github.com/jupyter/notebook/ Jupyter Notebook] || The Jupyter notebook is a web-based notebook environment for interactive computing. || Roberto Agostino Vitillo
| [https://github.com/jupyter/notebook/         Jupyter Notebook] || The Jupyter notebook is a web-based notebook environment for interactive computing. || Roberto Agostino Vitillo
|-
|-
| [https://kafka.apache.org/ Kafka] || Distributed transaction log, used for hg.mozilla.org replication. || gps
| [https://kafka.apache.org/                   Kafka] || Distributed transaction log, used for hg.mozilla.org replication. || gps
|-
|-
| [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
| [http://hg.code.sf.net/p/kissfft/code        kissfft] || FFT library, presumably ||
|-
|-
| [http://kombu.readthedocs.org/ Kombu] || Messaging library for Python. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [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
|-
|-
| [https://www.latex-project.org/ LaTeX] || A document preparation system. || Alan Jeffrey (ajeffrey)
| [http://kombu.readthedocs.org/               Kombu] || Messaging library for Python. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| libbz2                                        || Compression library for .bz2 format || Julian Seward
| [https://www.latex-project.org/              LaTeX] || A document preparation system. || Alan Jeffrey (ajeffrey)
|-
|-
| [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
| [https://github.com/square/leakcanary        Leak Canary] || Android memory leak detection framework || Android team
|-
|-
| [https://sourceware.org/libffi/ libffi] || A Portable Foreign Function Interface Library. || Platform team
| [https://libav.org/                           libav] || Audio and video libraries ||
|-
|-
| [http://libjpeg-turbo.virtualgl.org/ libjpeg-turbo] || JPEG decoding library || Jeff Muizelaar
| [http://www.bzip.org/                         libbz2] || Compression library for .bz2 format || Julian Seward
|-
|-
| [http://www.libpng.org/pub/png/libpng.html libpng] || PNG decoding library || Jeff Muizelaar
| [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
|-
|-
| libvpx (Google)                              || Library for support of Google’s VP* family of codecs || Tim Terriberry
| [https://sourceware.org/libffi/              libffi] || A Portable Foreign Function Interface Library. || Platform team
|-
|-
| Linux                                        || OS kernel used in Firefox OS || Unknown
| [http://libjpeg-turbo.virtualgl.org/          libjpeg-turbo] || JPEG decoding library || Jeff Muizelaar
|-
|-
| LLVM || Compiler foundation for ASAN, static analysis tools, Rust || Unknown
| [https://github.com/kinetiknz/nestegg        libnestegg] || WebM demuxer ||
|-
|-
| [https://lodash.com/ lodash] || JavaScript utility library, used by many of Mozilla's sites. || Webdev & Firefox Hello
| [http://www.libpng.org/pub/png/libpng.html    libpng] || PNG decoding library || Jeff Muizelaar
|-
|-
| [https://www.lua.org/ Lua] || Lua is a powerful, efficient, lightweight, embeddable scripting language, lua_sandbox_extensions || Mike Trinkala
| [https://www.webmproject.org/code/            libvpx (Google)] || Library for support of Google’s VP* family of codecs; includes libmkv || Tim Terriberry
|-
|-
| [https://github.com/macvim-dev/macvim MacVim] || Mac wrapper around Vim || -
| [https://chromium.googlesource.com/libyuv/libyuv/ libyuv] || Colourspace conversion ||
|-
|-
| [https://www.list.org/ Mailman]     || [https://mail.mozilla.org/listinfo Mailing lists] || Unknown
| [http://llvm.org/                            LLVM] || Compiler foundation for ASAN, static analysis tools, Rust || Unknown
|-
| [https://lodash.com/                          lodash] || JavaScript utility library, used by many of Mozilla's sites. || Webdev & Firefox Hello
|-
| [https://www.lua.org/                        Lua] || Lua is a powerful, efficient, lightweight, embeddable scripting language, lua_sandbox_extensions || Mike Trinkala
|-
| [https://github.com/macvim-dev/macvim        MacVim] || Mac wrapper around Vim || -
|-
| [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
| [https://pypi.python.org/pypi/marshmallow     marshmallow] || A lightweight library for converting complex datatypes to and from native Python datatypes. || Cloud Services Team
|-
|-
| [https://www.mediawiki.org/wiki/MediaWiki MediaWiki]     || You are reading this on a wiki || Shyam Mani
| [https://www.mediawiki.org/wiki/MediaWiki     MediaWiki] || You are reading this on a wiki || Shyam Mani
|-
|-
| [https://www.mercurial-scm.org/ Mercurial]   || Version control system and source code management || GPS  
| [https://www.mercurial-scm.org/               Mercurial] || Version control system and source code management || GPS  
|-
|-
| [https://www.mesa3d.org/ Mesa] || 3D graphics library used by Servo & Gecko || Unknown
| [https://www.mesa3d.org/                     Mesa] || 3D graphics library used by Servo & Gecko || Unknown
|-
|-
| [https://www.meteor.com/ Meteor]   || Build Apps with Javascript - Used in MozDef's Web UI || MozDef Team in EIS
| [https://www.meteor.com/                     Meteor] || Build Apps with Javascript - Used in MozDef's Web UI || MozDef Team in EIS
|-
|-
| [http://mochajs.org/ Mocha] || JavaScript test runner || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
| [http://mochajs.org/                         Mocha] || JavaScript test runner || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
|-
|-
| [https://github.com/kumar303/mohawk Mohawk] || Python library for Hawk HTTP authorization. Used by Treeherder and others. || Member of Jonathan Griffin's 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://mozdef.com                            mozdef] || Security event monitoring and incident response || Jeff Bryner
|-
|-
| [http://mozdef.com mozdef]                   || Security event monitoring and incident response || Jeff Bryner
| [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.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
| [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://www.mysql.com/ MySQL]               || Open source relational DB used by many developers, including AMO, SUMO, Input, bugzilla, releng, adminstered by IT || Matt Pressman
| [https://www.nagios.org/                     Nagios] || IT management system. Used for notifications of system failures || Linda Ypulong
|-
|-
| [https://www.nagios.org/ Nagios]             || IT management system. Used for notifications of system failures || Linda Ypulong
| [http://netsniff-ng.org/                     netsniff-ng] || Linux networking toolkit || Michal Purzynski
|-
|-
| [http://netsniff-ng.org/ netsniff-ng]                   || Linux networking toolkit || Michal Purzynski
| [https://neovim.io/                           neovim] (nvim) || Next-generation vim code editor || Ralph Giles
|-
|-
| [https://neovim.io/ neovim] (nvim) || Next-generation vim code editor || Ralph Giles
| [https://ninja-build.org/                     Ninja] || A small build system with a focus on speed - used by Servo dependencies. || Jack Moffitt
|-
|-
| nICEr                                        || Library for traversing firewalls || Unknown
| [https://nixos.org/Nix                        Nix] || Reproducible build tool. || Rok Garbas (garbas), Release Engineering Team
|-
|-
| [https://ninja-build.org/ Ninja] || A small build system with a focus on speed. || Jack Moffitt
| [https://nixos.org                           NixOS] || Reproducible Linux distribution. Used by some developers || Nicolas B. Pierron
|-
|-
| [https://nixos.org/Nix Nix] || Reproducible build tool. || Rok Garbas (garbas), Release Engineering Team
| [https://www.nginx.com/                       nginx] || Web Server. Used by almost everything CloudOps runs. || Travis Blow
|-
|-
| [https://nixos.org NixOS]                     || Reproducible Linux distribution. Used by some developers || Nicolas B. Pierron
| [https://nodejs.org                           Node.js] || JavaScript runtime for server side applications, command line utilities || Nick Desaulniers
|-
|-
| [https://www.nginx.com/resources/wiki/contributing/github/ nginx] || Web Server. Used by almost everything CloudOps runs. || Travis Blow
| [http://nrappkit.sourceforge.net/             nrappkit] || Toolkit for building standalone applications || Unknown
|-
|-
| [https://nodejs.org Node.js]                 || JavaScript runtime for server side applications, command line utilities || Nick Desaulniers
| [http://nsis.sourceforge.net/Main_Page        NSIS] || Windows installer framework || Matt Howell
|-
|-
| nrappkit                                      || Toolkit for building standalone applications || Unknown
| [https://wiki.mozilla.org/NSS                NSS] || Network Security Services || jcjones?
|-
|-
| [http://nsis.sourceforge.net/Main_Page NSIS] || Windows installer framework || Matt Howell
| [https://www.gnu.org/software/octave/        Octave] || Numerical analysis/mathematics software. || Jean-Marc Valin
|-
|-
| [https://wiki.mozilla.org/NSS NSS] || Network Security Services || jcjones?
| [https://github.com/cisco/OpenH264            OpenH264] (Cisco) || H.264 video library || Unknown
|-
|-
| [https://www.gnu.org/software/octave/ Octave] || Numerical analysis/mathematics software. || Jean-Marc Valin
| [http://www.openLDAP.org/                     OpenLDAP] || User management used by Infra || :jabba?
|-
|-
| [https://github.com/cisco/OpenH264 OpenH264] (Cisco)                              || H.264 video library || Unknown
| [http://openresty.org                        OpenResty] || a fast web app server by extending nginx, used by cloudops || Benson Wong (mostlygeek)
|-
|-
| [http://www.openLDAP.org/ OpenLDAP]                 || User management used by Infra || :jabba?
| [http://www.openssh.com/                     OpenSSH] || Remote server management, secure transport for Git and Mercurial || Unknown
|-
|-
| [http://openresty.org OpenResty]             || a fast web app server by extending nginx, used by cloudops || Benson Wong (mostlygeek)
| [http://openssl.org/                          OpenSSL] || Cryptograpahy and TLS Toolkit || Nick Desaulniers
|-
|-
| [http://www.openssh.com/ OpenSSH]                 || Remote server management, secure transport for Git and Mercurial || Unknown
| [https://www.openstreetmap.org                OpenStreetMap] || Online/offline maps, used by the location service and on mozilla.org || Unknown
|-
|-
| [http://openssl.org/ OpenSSL]                 || Cryptograpahy and TLS Toolkit || Nick Desaulniers
| [https://openvpn.net/                         Openvpn] || VPN used by Infra || :jabba?
|-
|-
| [https://www.openstreetmap.org OpenStreetMap]     || Online/offline maps, used by the location service and on mozilla.org || Unknown
| [https://github.com/ValveSoftware/openvr/    OpenVR] || VR hardware support library ||
|-
|-
| [https://openvpn.net/ Openvpn]                 || VPN used by Infra || :jabba?
| [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://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://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)
|-
|-
| [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
|-
|-
| [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/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://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://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://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://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://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
|-
|-
| [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
| [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])
| [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://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://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
| [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/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://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://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/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/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
| [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
| [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
| [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://pytest.org/                           pytest] || Python testing tool. Used by Treeherder and others. || Dave Hunt
|-
|-
| Python                                       || Scripting language || [http://python.org/psf/ Python Software Foundation], Selena Deckelmann is a former board member
| [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/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://python-jose.readthedocs.io/en/latest/ python-jose] || a JavaScript Object Signing and Encryption (JOSE) implementation in python || Cloud Services Team
| [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://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
| [https://github.com/redux-saga/redux-saga    Redux-saga] || An alternative side effect model for Redux apps. || Nicolas Perriault
|-
|-
| [http://http://rapidjson.org/ RapidJSON] || A fast JSON parser/generator for C++ with both SAX/DOM style API, lua_sandbox_extensions || Mike Trinkala
| [http://python-requests.org/                 Requests] || "Python HTTP Requests for Humans". Used by many many Mozilla Python projects. || Member of Jonathan Griffin's team
|-
|-
| [https://pypi.python.org/pypi/raven Raven] || Raven is a python client for Sentry || Cloud services Team
| [https://www.reviewboard.org/                 Review Board] || The base of MozReview, the new review tool being developed to replace Splinter || Steven MacLeod, Mike Conley
|-
|-
| [http://facebook.github.io/react/index.html ReactJS] || Javascript library for building user interfaces. Used by Firefox Hello & DevTools || Mark Banner, Nicolas Perriault
| [https://github.com/rietveld-codereview/rietveld Rietveld] || Code Review, hosted on Google App Engine, used by Daala team. || Ralph Giles
|-
|-
| [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://github.com/briansmith/ring          Ring] || Safe, fast, small crypto using Rust. || Diane Hosfelt
|-
|-
| [https://redash.io/ redash] || Data analysis and dashboarding tool || Rob Miller
| [https://chromium.googlesource.com/external/rlz/ rlz] || Library for grouping promotion event signals and anonymous user cohorts ||
|-
|-
| [http://redis.io/ Redis]         || Really fast data structure store, cache and message broker || Cloud Services Tarek Ziade's team, Loop Server (Hello) team
| [https://saltstack.com/                       Salt] || Python-based configuration management software. || Jack Moffitt
|-
|-
| [http://redux.js.org/ Redux] || Redux is a predictable state container for JavaScript apps. || Jason Laster, Nicolas Perriault
| [https://sass-lang.com/                       Sass] || CSS Preprocessor. Most big team web projects use Sass these days. ||
|-
|-
| [https://github.com/redux-saga/redux-saga Redux-saga] || An alternative side effect model for Redux apps. || Nicolas Perriault
| [http://wordlist.aspell.net/                 SCOWL] || en-US word list used for spell checking. || ehsan
|-
|-
| [http://python-requests.org/ Requests] || "Python HTTP Requests for Humans". Used by many many Mozilla Python projects. || Member of Jonathan Griffin's team
| [https://github.com/sctplab/usrsctp          sctp] || SCTP stack ||
|-
|-
| [https://www.reviewboard.org/ Review Board]   || The base of MozReview, the new review tool being developed to replace Splinter || Steven MacLeod, Mike Conley
| [http://www.seleniumhq.org/                   Selenium] || Browser test driver || David Burns, Dave Hunt
|-
|-
| [https://github.com/rietveld-codereview/rietveld Rietveld] || Code Review, hosted on Google App Engine. || Ralph Giles
| [http://sinonjs.org/                         Sinon] || JavaScript mock library || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
|-
|-
| [https://github.com/briansmith/ring Ring] || Safe, fast, small crypto using Rust. || Diane Hosfelt
| [https://skia.org/                           Skia] || A complete 2D graphic library for drawing Text, Geometries, and Images || Platform Graphics Team
|-
|-
| [https://saltstack.com/ Salt]         || Python-based configuration management software. || Jack Moffitt
| [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://sass-lang.com/ Sass]         || CSS Preprocessor. Most big team web projects use Sass these days. ||
| [https://github.com/apache/spark/            Spark] || Spark is a fast and general cluster computing system for Big Data. || Roberto Agostino Vitillo
|-
|-
| [http://wordlist.aspell.net/ SCOWL]         || en-US word list used for spell checking. || ehsan
| [http://sphinx-doc.org/                       Sphinx] || Documentation builder used for Fathom, DXR, and probably other projects || Erik Rose
|-
|-
| [http://www.seleniumhq.org/ Selenium]         || Browser test driver || David Burns, Dave Hunt
| [http://www.sqlalchemy.org/                   SQLAlchemy] || Database Toolkit and ORM for Python || bhearsum
|-
|-
| [http://sinonjs.org/ Sinon] || JavaScript mock library || Cloud Services, Tarek Ziade's team (kinto.js); Firefox Hello team
| [https://www.sqlite.org/                     SQLite] || File-based database || asuth
|-
|-
| [https://skia.org/ Skia] || A complete 2D graphic library for drawing Text, Geometries, and Images || Platform Graphics Team
| [http://www.squid-cache.org/                 Squid] || Caching proxy || Brian Hourigan
|-
|-
| [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/cisco/libsrtp            SRTP] || SRTP protocol library ||
|-
|-
| [https://github.com/apache/spark/ Spark] || Spark is a fast and general cluster computing system for Big Data. || Roberto Agostino Vitillo
| [http://stanfordnlp.github.io/CoreNLP/       Stanford CoreNLP] || Natural language analysis tools used in FOSS Heartbeat || Don Marti
|-
|-
| [http://sphinx-doc.org/ Sphinx]             || Documentation builder used for Fathom, DXR, and probably other projects || Erik Rose
| [http://learnboost.github.io/stylus/         Stylus] || CSS Pre-processor on several sites || webdev
|-
|-
| [http://www.sqlalchemy.org/ SQLAlchemy]] || Database Toolkit and ORM for Python || bhearsum
| [https://subversion.apache.org/               Subversion] || https://svn.mozilla.org ''(Planning to decommission in near future)'' || Unknown
|-
|-
| [https://www.sqlite.org/ SQLite]             || File-based database || asuth
| [https://suricata-ids.org/                   suricata] || IDS / IPS / NSM engine || Michal Purzynski
|-
|-
| [http://www.squid-cache.org/ Squid]           || Caching proxy || Brian Hourigan
| [http://ternjs.net/                           TernJS] || Code analysis engine for JS ||
|-
|-
| [http://stanfordnlp.github.io/CoreNLP/ Stanford CoreNLP] || Natural language analysis tools used in FOSS Heartbeat || Don Marti
| [http://threejs.org/                          three.js] || 3D JS library; used by A-Frame || Lars Bergstrom
|-
|-
| [http://learnboost.github.io/stylus/ Stylus]             || CSS Pre-processor on several sites || webdev
| [https://tox.readthedocs.org/en/latest/      Tox] || Test automation || Dave Hunt
|-
|-
| [https://subversion.apache.org/ Subversion]   || https://svn.mozilla.org ''(Planning to decommission in near future)'' || Unknown
| [https://travis-ci.org/                       Travis] || Continuous integration system used by several teams (eg Treeherder) || Jonathan Griffin's team and Lars Bergstrom
|-
|-
| [https://suricata-ids.org/ suricata]                   || IDS / IPS / NSM engine || Michal Purzynski
| [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://tox.readthedocs.org/en/latest/ Tox] || Test automation || Dave Hunt
| [https://unicode.org/                         The Unicode Consortium] || Their work underpins most of what we do || Richard Soderberg
|-
|-
| [https://travis-ci.org/ Travis]               || Continuous integration system used by several teams (eg Treeherder) || Jonathan Griffin's team
| [https://uwsgi-docs.readthedocs.io/en/latest/ UWSGI] || Full hosting stack used in MozDef || MozDef Team in EIS
|-
|-
| [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://github.com/mitchellh/vagrant        Vagrant]|| Build and distribute dev envs, used by Treeherder and others || Member of Jonathan Griffin's team
|-
|-
| [https://uwsgi-docs.readthedocs.io/en/latest/ UWSGI]               || Full hosting stack used in MozDef || MozDef Team in EIS
| [http://valgrind.org/                         Valgrind] || Memory error detection and profiling of C and C++ code || jseward, njn
|-
|-
| [https://github.com/mitchellh/vagrant Vagrant]|| Build and distribute dev envs, used by Treeherder and others || Member of Jonathan Griffin's team
| [http://www.videolan.org/index.html          VideoLAN] || Free software for multimedia || Timothy B. Terriberry
|-
|-
| [http://valgrind.org/ Valgrind]               || Memory error detection and profiling of C and C++ code || jseward, njn
| [https://github.com/microsoft/vscode/        vscode] || Code editor || unknown
|-
|-
| [http://www.videolan.org/index.html ViodLAN] || Free software for multimedia || Timothy B. Terriberry
| [http://vim.org/                             vim] || editor used by many developers ||
|-
|-
| [https://github.com/microsoft/vscode/ vscode] || Code editor || unknown
| [https://waffle.io/mozilla/                   waffle.io] || github project management used by various teams ||  
|-
|-
| [http://vim.org/ vim] || editor used by many developers ||
| [https://github.com/w3c/web-platform-tests    web-platform-tests] || Testcases and tooling for cross-browser testing of web-platform APIs || jgraham
|-
|-
| [https://waffle.io/mozilla/ waffle.io] || github project management used by various teams ||  
| [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
|-
|-
| [https://webpack.github.io/ WebPack]           || A bundler for javascript and friends || Nicolas Perriault
| [https://github.com/google/woff2              woff2] || Reference library for WOFF font format ||
|-
|-
| [http://www.webrtc.org WebRTC.org]           || Components to support real-time communication in browsers and mobile applications || Randell Jesup
| [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://www.webtoolkit.eu/wt                Wt] || C++ library for developing web applications, hindsight_admin || Mike Trinkala
|-
|-
| [https://www.webtoolkit.eu/wt Wt] || C++ library for developing web applications, hindsight_admin || Mike Trinkala
| [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 || Ralph Giles
| [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
| [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://tukaani.org/xz/embedded.html         XZ Embedded] || Decompressor for the XZ format ||
|-
|-
| [http://yasm.tortall.net/ yasm] || Assembler used by the build system. || unknown
| [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
|-
|-
| [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. ||
|-
|-
| [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
| [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