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://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
|-
| [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://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/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 ||
|-
|-
| [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://www.isc.org/downloads/bind/          BIND] || DNS Server || Brian Hourigan
|-
|-
| [https://httpd.apache.org Apache Server]     || Used by A-Team for web apps || Member of Jonathan Griffin's team
| [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://github.com/ansible/ansible Ansible] || Used by IT (netops) and A-Team to manage deployments || jbarnell , Webops, GPS?
| [https://pypi.python.org/pypi/blessings/     Blessings] || Terminal formatting lib used by mozilla-central build process || Erik Rose
|-
|-
| [https://github.com/h4writer/arewefastyet AreWeFastYet] || Compare JS performance across JS engines and platforms || Hannes Verschore
| [https://chromium.googlesource.com/chromium/blink/+log/master/Source/modules/webaudio Blink Web Audio] || Web audio implementation from Blink ||  
|-
|-
| [https://github.com/argonjs Argon] || Used as the foundation for mobile AR web browser research by Emerging Tech || Blair MacIntyre
| [http://getbootstrap.com/                     Bootstrap] || HTML/CSS/JS framework, used by many of Mozilla's sites. || Webdev
|-
|-
| [https://atom.io/ Atom]                       || Used (either vanilla or e.g. as [https://github.com/Microsoft/vscode] ) by various developers ||
| [https://bro.org                              bro] || The Bro Network Security Monitor || Michal Purzynski
|-
|-
| [https://babeljs.io/ BabelJS]                 || JavaScript compiler, Used by Gaia, TaskCluster team || Selena Deckelmann
| [https://github.com/google/brotli            brotli] || Compression library ||
|-
|-
| [https://www.isc.org/downloads/bind/ BIND] || DNS Server || Brian Hourigan
| [http://browserify.org                       Browserify] || Build JS dependencies for the browser || mozilla-services (kinto.js)
|-
|-
| [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://buildbot.net/                         BuildBot] || The base system currently in use for release || Dustin J. Mitchell
|-
|-
| [https://pypi.python.org/pypi/blessings/ Blessings] || Terminal formatting lib used by mozilla-central build process || Erik Rose
| [http://bugzilla.org/                         Bugzilla] (upstream) || The base Bugzilla on that we customize for Mozilla's use || Mark Côté
|-
|-
| [http://getbootstrap.com/ Bootstrap] || HTML/CSS/JS framework, used by many of Mozilla's sites. || Webdev
| [https://www.cairographics.org/               Cairo] || Vector graphics-based, device independent API; includes pixman || Jeff Muizelaar
|-
|-
| [http://brew.sh/ brew / Homebrew] || Mac OS X packaging system, used to install dev tools || Sam Penrose
| [https://ccache.samba.org/                   ccache] || A compiler cache; used by Servo and Gecko builds || Ted Mielczarek
|-
|-
| [https://bro.org bro]                   || The Bro Network Security Monitor || Michal Purzynski
| [http://www.celeryproject.org/                Celery] || Distributed task queue. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| [http://browserify.org Browserify]                   || Build JS dependencies for the browser || mozilla-services (kinto.js)
| [https://github.com/awslabs/certlint          certlint] || Certificate checking tool, used by the Root Store team || Kathleen Wilson
|-
|-
| [http://buildbot.net/ BuildBot]               || The base system currently in use for release || Dustin J. Mitchell
| [http://cffi.readthedocs.io/en/latest/        cffi] || C Foreign Function Interface for Python. || Cloud Services Team
|-
|-
| [http://bugzilla.org/ Bugzilla] (upstream)    || The base Bugzilla on that we customize for Mozilla's use || Mark Côté
| [http://ckeditor.com/                         CKEditor] || WYSIWYG editor on MDN ||
|-
|-
| [https://www.cairographics.org/ Cairo] || Vector graphics-based, device independent API. || Jeff Muizelaar
| [http://unicode.org/cldr/trac/browser/trunk  CLDR] || Common Locale Data Repository - Unicode data ||
|-
|-
| [https://ccache.samba.org/ ccache] || A compiler cache. || Ted Mielczarek
| [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://www.celeryproject.org/ Celery] || Distributed task queue. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [http://chaijs.com/                           Chai] || JavaScript test and assertion library || Cloud Services, Tarek Ziade's team (kinto.js), Firefox Hello team
|-
|-
| [http://cffi.readthedocs.io/en/latest/ cffi] || C Foreign Function Interface for Python. || Cloud Services Team
| [https://bitbucket.org/chromiumembedded/cef  Chromium Embedded Framework] || A simple framework for embedding browsers in other applications || Jack Moffitt
|-
|-
| [http://ckeditor.com/ CKEditor] || WYSIWYG editor on MDN ||  
| [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://gcc.godbolt.org/                     Compiler Explorer - C++] || Online C++ compiler with assembly output. Used by devs to test&optimize code snippets. || Unknown
|-
|-
| [http://www.llvm.org Clang/LLVM]           || C/C++ compiler and infrastructure || Ehsan Akhgari & Sylvestre Ledru
| [https://rust.godbolt.org/                   Compiler Explorer - Rust] || Online Rust compiler with assembly output. Used by devs to test&optimize code snippets. || Unknown
|-
|-
| [https://codemirror.net/ CodeMirror]           || Used in DevTools, [https://thimble.mozilla.org Thimble], and other online code tools || David Humphrey/Simon Wex
| [https://conemu.github.io/                   ConEmu] || Console emulator for Windows. Used by devs running Windows. || Ed Morley
|-
|-
| [https://pypi.python.org/pypi/cookiecutter/ Cookiecutter] || Templating system used to clone our [https://github.com/mozilla/sugardough Sugardough] Django template || Giorgos Logiotatidis
| [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://conemu.github.io/ ConEmu] || Console emulator for Windows. Used by devs running Windows. || Ed Morley
| [http://crt.sh/                              crt.sh] || Global certificate corpus search website || Gervase Markham
|-
|-
| [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://github.com/kinetiknz/cubeb.git        cubeb] || Cross-platform audio library ||  
|-
|-
| [http://crt.sh/ crt.sh] || Global certificate corpus search website || Gervase Markham
| [http://curl.haxx.se/                         curl] || internet transfer tool and library, used by crashreporter and FirefoxOS || Daniel Stenberg
|-
|-
| [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
|-
|-
| [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
|-
|-
| [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://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://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
|-
|-
| [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
|-
|-
| [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/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
| [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://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://eslint.org/                          eslint] || Pluggable linting utiltity used by Firefox Hello, DevTools and Firefox Android || Mark Banner, Nicolas Perriault
|-
|-
| [http://www.gnu.org/software/emacs/ emacs] || Programmable editor used by many developers ||
| [https://github.com/ether/etherpad-lite      Etherpad] || Used for meeting notes, etc || JP Schneider
|-
|-
| [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/freebsd/freebsd/tree/master/lib/msun/src fdlibm] || ??? ||  
|-
|-
| [http://eslint.org/ eslint] || Pluggable linting utiltity used by Firefox Hello, DevTools and Firefox Android || Mark Banner, Nicolas Perriault
| [https://ffmpeg.org/                         ffmpeg] || Used for media decoding. || Jean-Yves Avenard
|-
|-
| [https://github.com/ether/etherpad-lite Etherpad]     || Used for meeting notes, etc || JP Schneider
| [https://flake8.readthedocs.org/             flake8] || Wrapper around Python linters. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| [https://ffmpeg.org/ ffmpeg] || Used for media decoding. || Jean-Yves Avenard
| [http://flask.pocoo.org/                     Flask] || Python web framework || Erik Rose
|-
|-
| [https://flake8.readthedocs.org/ flake8] || Wrapper around Python linters. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [https://flowtype.org/                       Flow] || A static type checker for JavaScript || Greg Tatum, Jason Laster, Nicolas Perriault
|-
|-
| [http://flask.pocoo.org/ Flask]               || Python web framework || Erik Rose
| [https://fortawesome.github.io/Font-Awesome/  Font Awesome] || Font and CSS toolkit, used by many of Mozilla's sites. || Webdev
|-
|-
| [https://flowtype.org/ Flow] || A static type checker for JavaScript || Greg Tatum, Jason Laster, Nicolas Perriault
| [http://fontforge.github.io/en-US/           FontForge] || Built-in Emoji font compilation || Tim Chien ([https://github.com/mozilla/emojione-colr See emojione-colr])
|-
|-
| [https://fortawesome.github.io/Font-Awesome/ Font Awesome] || Font and CSS toolkit, used by many of Mozilla's sites. || Webdev
| [https://pypi.python.org/pypi/FontTools      FontTools] || 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])
| [http://foundation.zurb.com/ Foundation      Framework] || Responsive front-end framework, used by some Mozilla sites and add-ons || Luke Crouch
|-
|-
| [https://pypi.python.org/pypi/FontTools FontTools] || Built-in Emoji font compilation || Tim Chien ([https://github.com/mozilla/emojione-colr See emojione-colr])
| [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://foundation.zurb.com/ Foundation Framework] || Responsive front-end framework, used by some Mozilla sites and add-ons || Luke Crouch
| [http://gcc.gnu.org                          GCC] || C/C++ compiler and infrastructure || Nathan Froyd
|-
|-
| [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://https://www.sourceware.org/gdb/      GDB] || The GNU Debugger, the sole debugger for Linux || Jim Blandy
|-
|-
| [http://gcc.gnu.org GCC]                     || C/C++ compiler and infrastructure || Nathan Froyd
| [https://git-scm.com/                        Git] || Version control system - https://git.mozilla.org || Unknown
|-
|-
| [http://https://www.sourceware.org/gdb/ GDB] || The GNU Debugger, the sole debugger for Linux || Jim Blandy
| [https://www.freedesktop.org/wiki/Software/glitz/ Glitz] || OpenGL image compositing library ||
|-
|-
| [https://git-scm.com/ Git]                   || Version control system - https://git.mozilla.org || Unknown
| [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://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
|-
|-
| [http://homu.io/ Homu] || A bot that integrates with your favorite continuous integration service || 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/        Hyper] || A fast, modern HTTP implementation written in and for Rust; used by Servo || 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/index.html Hyper] || A fast, modern HTTP implementation written in and for Rust. || Sean McArthur
| [https://ssl.icu-project.org/repos/icu/icu/   ICU] || (And ICU4J) International Components for Unicode - internationalization library ||
|-
|-
| [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]
| [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
| [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://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://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/jupyter/notebook/ Jupyter Notebook] || The Jupyter notebook is a web-based notebook environment for interactive computing. || Roberto Agostino Vitillo
| [https://github.com/jodeleeuw/jsPsych        jsPsych] || A JavaScript library for creating and running behavioral experiments in a web browser. || Josh Gaunt
|-
|-
| [https://kafka.apache.org/ Kafka] || Distributed transaction log, used for hg.mozilla.org replication. || gps
| [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/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://kafka.apache.org/                   Kafka] || Distributed transaction log, used for hg.mozilla.org replication. || gps
|-
|-
| [http://kombu.readthedocs.org/ Kombu] || Messaging library for Python. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [http://hg.code.sf.net/p/kissfft/code        kissfft] || FFT library, presumably ||
|-
|-
| [https://www.latex-project.org/ LaTeX] || A document preparation system. || Alan Jeffrey (ajeffrey)
| [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
|-
|-
| libbz2                                        || Compression library for .bz2 format || Julian Seward
| [http://kombu.readthedocs.org/                Kombu] || Messaging library for Python. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| [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://www.latex-project.org/               LaTeX] || A document preparation system. || Alan Jeffrey (ajeffrey)
|-
|-
| [https://sourceware.org/libffi/ libffi] || A Portable Foreign Function Interface Library. || Platform team
| [https://github.com/square/leakcanary        Leak Canary] || Android memory leak detection framework || Android team
|-
|-
| [http://libjpeg-turbo.virtualgl.org/ libjpeg-turbo] || JPEG decoding library || Jeff Muizelaar
| [https://libav.org/                           libav] || Audio and video libraries ||
|-
|-
| [http://www.libpng.org/pub/png/libpng.html libpng] || PNG decoding library || Jeff Muizelaar
| [http://www.bzip.org/                         libbz2] || Compression library for .bz2 format || Julian Seward
|-
|-
| libvpx (Google)                              || Library for support of Google’s VP* family of codecs || Tim Terriberry
| [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
|-
|-
| Linux                                        || OS kernel used in Firefox OS || Unknown
| [https://sourceware.org/libffi/              libffi] || A Portable Foreign Function Interface Library. || Platform team
|-
|-
| LLVM || Compiler foundation for ASAN, static analysis tools, Rust || Unknown
| [http://libjpeg-turbo.virtualgl.org/          libjpeg-turbo] || JPEG decoding library || Jeff Muizelaar
|-
|-
| [https://lodash.com/ lodash] || JavaScript utility library, used by many of Mozilla's sites. || Webdev & Firefox Hello
| [https://github.com/kinetiknz/nestegg        libnestegg] || WebM demuxer ||
|-
|-
| [https://www.lua.org/ Lua] || Lua is a powerful, efficient, lightweight, embeddable scripting language, lua_sandbox_extensions || Mike Trinkala
| [http://www.libpng.org/pub/png/libpng.html    libpng] || PNG decoding library || Jeff Muizelaar
|-
|-
| [https://github.com/macvim-dev/macvim MacVim] || Mac wrapper around Vim || -
| [https://www.webmproject.org/code/           libvpx (Google)] || Library for support of Google’s VP* family of codecs; includes libmkv || Tim Terriberry
|-
|-
| [https://www.list.org/ Mailman]     || [https://mail.mozilla.org/listinfo Mailing lists] || Unknown
| [https://chromium.googlesource.com/libyuv/libyuv/ libyuv] || Colourspace conversion ||
|-
| [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
|- 
| [http://mozdef.com                            mozdef] || Security event monitoring and incident response || Jeff Bryner
|-
|-
| [https://github.com/kumar303/mohawk Mohawk] || Python library for Hawk HTTP authorization. Used by Treeherder and others. || Member of Jonathan Griffin's team
| [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://mozdef.com mozdef]                   || Security event monitoring and incident response || Jeff Bryner
| [https://www.mysql.com/                      MySQL] || Open source relational DB used by many developers, including AMO, SUMO, Input, bugzilla, releng, adminstered by IT || Matt Pressman
|-
|-
| [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.nagios.org/                     Nagios] || IT management system. Used for notifications of system failures || Linda Ypulong
|-
|-
| [https://www.mysql.com/ MySQL]               || Open source relational DB used by many developers, including AMO, SUMO, Input, bugzilla, releng, adminstered by IT || Matt Pressman
| [http://netsniff-ng.org/                     netsniff-ng] || Linux networking toolkit || Michal Purzynski
|-
|-
| [https://www.nagios.org/ Nagios]             || IT management system. Used for notifications of system failures || Linda Ypulong
| [https://neovim.io/                           neovim] (nvim) || Next-generation vim code editor || Ralph Giles
|-
|-
| [http://netsniff-ng.org/ netsniff-ng]                   || Linux networking toolkit || Michal Purzynski
| [https://ninja-build.org/                     Ninja] || A small build system with a focus on speed - used by Servo dependencies. || Jack Moffitt
|-
|-
| [https://neovim.io/ neovim] (nvim) || Next-generation vim code editor || Ralph Giles
| [https://nixos.org/Nix                        Nix] || Reproducible build tool. || Rok Garbas (garbas), Release Engineering Team
|-
|-
| nICEr                                        || Library for traversing firewalls || Unknown
| [https://nixos.org                            NixOS] || Reproducible Linux distribution. Used by some developers || Nicolas B. Pierron
|-
|-
| [https://ninja-build.org/ Ninja] || A small build system with a focus on speed. || Jack Moffitt
| [https://www.nginx.com/                       nginx] || Web Server. Used by almost everything CloudOps runs. || Travis Blow
|-
|-
| [https://nixos.org/Nix Nix] || Reproducible build tool. || Rok Garbas (garbas), Release Engineering Team
| [https://nodejs.org                           Node.js] || JavaScript runtime for server side applications, command line utilities || Nick Desaulniers
|-
|-
| [https://nixos.org NixOS]                     || Reproducible Linux distribution. Used by some developers || Nicolas B. Pierron
| [http://nrappkit.sourceforge.net/            nrappkit] || Toolkit for building standalone applications || Unknown
|-
|-
| [https://www.nginx.com/resources/wiki/contributing/github/ nginx] || Web Server. Used by almost everything CloudOps runs. || Travis Blow
| [http://nsis.sourceforge.net/Main_Page        NSIS] || Windows installer framework || Matt Howell
|-
|-
| [https://nodejs.org Node.js]                 || JavaScript runtime for server side applications, command line utilities || Nick Desaulniers
| [https://wiki.mozilla.org/NSS                NSS] || Network Security Services || jcjones?
|-
|-
| nrappkit                                      || Toolkit for building standalone applications || Unknown
| [https://www.gnu.org/software/octave/        Octave] || Numerical analysis/mathematics software. || Jean-Marc Valin
|-
|-
| [http://nsis.sourceforge.net/Main_Page NSIS] || Windows installer framework || Matt Howell
| [https://github.com/cisco/OpenH264            OpenH264] (Cisco) || H.264 video library || Unknown
|-
|-
| [https://wiki.mozilla.org/NSS NSS] || Network Security Services || jcjones?  
| [http://www.openLDAP.org/                     OpenLDAP] || User management used by Infra || :jabba?
|-
|-
| [https://www.gnu.org/software/octave/ Octave] || Numerical analysis/mathematics software. || Jean-Marc Valin
| [http://openresty.org                         OpenResty] || a fast web app server by extending nginx, used by cloudops || Benson Wong (mostlygeek)
|-
|-
| [https://github.com/cisco/OpenH264 OpenH264] (Cisco)                              || H.264 video library || Unknown  
| [http://www.openssh.com/                     OpenSSH] || Remote server management, secure transport for Git and Mercurial || Unknown
|-
|-
| [http://www.openLDAP.org/ OpenLDAP]                 || User management used by Infra || :jabba?
| [http://openssl.org/                         OpenSSL] || Cryptograpahy and TLS Toolkit || Nick Desaulniers
|-
|-
| [http://openresty.org OpenResty]             || a fast web app server by extending nginx, used by cloudops || Benson Wong (mostlygeek)
| [https://www.openstreetmap.org               OpenStreetMap] || Online/offline maps, used by the location service and on mozilla.org || Unknown
|-
|-
| [http://www.openssh.com/ OpenSSH]                 || Remote server management, secure transport for Git and Mercurial || Unknown
| [https://openvpn.net/                         Openvpn] || VPN used by Infra || :jabba?
|-
|-
| [http://openssl.org/ OpenSSL]                 || Cryptograpahy and TLS Toolkit || Nick Desaulniers
| [https://github.com/ValveSoftware/openvr/    OpenVR] || VR hardware support library ||
|-
|-
| [https://www.openstreetmap.org OpenStreetMap]     || Online/offline maps, used by the location service and on mozilla.org || Unknown
| [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://openvpn.net/ Openvpn]                 || VPN used by Infra || :jabba?
| [https://www.owasp.org/index.php/ZAP          OWASP ZAP] || Web security testing tool used by security and QA teams || Simon Bennetts (psiinon)
|-
|-
| [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://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://www.owasp.org/index.php/ZAP OWASP ZAP]                 || Web security testing tool used by security and QA teams || Simon Bennetts (psiinon)
| [http://pandoc.org/                           Pandoc] || universal document converter, lua_sandbox_extensions || Mike Trinkala
|-
|-
| [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://github.com/Parquet/parquet-mr        Parquet-MR] || Parquet-MR contains the java implementation of the Parquet format || Roberto Agostino Vitillo
|-
|-
| [http://pandoc.org/ Pandoc] || universal document converter, 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://github.com/Parquet/parquet-mr Parquet-MR] || Parquet-MR contains the java implementation of the Parquet format || Roberto Agostino Vitillo
| [https://pypi.python.org/pypi/parsimonious/   Parsimonious] || Parsing lib used by DXR and a few other sites (I think) || Erik Rose
|-
|-
| [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/mozilla/pdf.js            PDF.js] || Used as the PDF Viewer in Firefox and Firefox OS || Brendan Dahl, Yury Delendik
|-
|-
| [https://pypi.python.org/pypi/parsimonious/ Parsimonious] || Parsing lib used by DXR and a few other sites (I think) || Erik Rose
| [https://pdfium.googlesource.com/pdfium/     PDFium] || PDF viewing and printing in Firefox || Peter Van Der Beken, Evelyn Hung
|-
|-
| [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/PyCQA/pep8                pep8] || Python linter. Used by Treeherder and others. || Member of Jonathan Griffin's team
|-
|-
| [https://pdfium.googlesource.com/pdfium/ PDFium]           || PDF viewing and printing in Firefox || Peter Van Der Beken, Evelyn Hung
| [https://www.perl.org/                       Perl] || Used by Bugzilla || 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
| [http://square.github.io/picasso/             Picasso] || Android image fetching framework || Android team
|-
|-
| [https://www.perl.org/ Perl]                 || Used by Bugzilla || Member of Jonathan Griffin's 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://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
|}
|}
95

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