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Mozilla Open Source Support (MOSS) awards recognize, celebrate, and support open source projects that contribute to Mozilla’s work and to the health of the Internet. Learn more about MOSS awards on the project website.

MOSS currently has 3 tracks:

Use the links above to find out about each track, including details on how to apply.

Application Deadlines

The review committee meets to consider MOSS applications in batches each month. Applications are considered in the order in which they are received and applicants can normally expect a response within 4-6 weeks, though this can vary based on current application volume.

Selection Committee

We have formed a selection committee of 8 participants to assess awards on Tracks 1 and 2, as follows:

  • Current Committed Mozillians - they bring a good working knowledge of Mozilla's day-to-day activities and how various open source projects are used.
  • Senior Mozilla Alumni - they are no longer actively involved with Mozilla on a day-to-day basis but have a deep understanding of our project and a different/outside perspective.
  • Other Open Source Experts - they bring knowledge of the role of different projects within the open source ecosystem.

Applicant/Awardee Resources

The application form has an "Outcomes" section, and any award will require a contract or agreement with a Schedule of Work (SoW) which defines what work is to be done. Both of those things might benefit from examining a sample Schedule of Work.

If your application is successful and you find yourself doing a blog post or conference talk about your work, we would appreciate a mention. Find some useful guidance at Talking About Your MOSS Award.


Some projects may want to apply for a MOSS award but be nervous about preparing a proposal. We have identified some mentors who are willing to help with this, and you should feel free to contact any of them:

  • David Bryant. David is a Fellow in Mozilla's Emerging Technologies organization and also led Mozilla's Platform Engineering organization in the past. He is comfortably clueful about software, and has also signed on to assist with the topics of project needs, possible solutions and appropriate amounts.
  • Pascal Finette. Pascal launched WebFWD when he was a Mozilla employee and now runs Singularity University’s accelerator program. Pascal has a long history and an abiding love of working with people to build things. He has great expertise in this type of task, matching by his abiding interest in contributing to Mozilla.


April 2019 Update: This project list is out of date, please see the MOSS Directory on GitHub

  • 2015-12-10: Buildbot, CodeMirror, Discourse, Read The Docs, Mercurial, Django, Bro
  • 2016-04-13: Django REST Framework, The Intern
  • 2016-06-22: Tor, Tails, Caddy, Mio, DNSSEC/DANE Chain Stapling, Godot Engine, PeARS, NVDA
  • 2016-08-04: PyPy
  • 2016-10-03: Redash, Review Board, Kea, Speech Rule Engine
  • 2017-04-10: SecureDrop, libjpeg-turbo, LLVM, LEAP Encryption Access Project, Tokio
  • 2017-10-03: Ushahidi, webpack, RiseUp, Phaser, mod_md
  • 2018-01-23: Python Package Index (PyPI), Harfbuzz, Zappa, Tatoeba, Tor Project’s Open Observatory of Network Interference, Commento, libav/rust-av
  • 2019-01-03: SecureDrop, Tor, Processing Foundation, Dat, autoEdit2, Jandig, Open Data for Outbreak Science, Psych-DS, VRStoryGram,, Streetmix, Push, MoodleNet, Ciberseguras, Smart Greenhouse Monitoring System, CiviCRM Core Support and Development Inquiry, Engage, TorBirdy, and several others
  • ...