Download Firefox

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Firefox Privacy Notice

Mission Partners


The Mission Partners track is open to any open source or free software project that is undertaking an activity which significantly furthers Mozilla’s mission.

Ready to go?

Apply Now

What your application should include

Award applications should be submitted by a leader of the project. Your application needs to meet the following criteria:

  • Enhancement

    The project should be to write or enhance some software or software documentation which is under an OSI open source and/or an FSF free software license (non-software exceptions will be considered on a case-by-case basis).

  • Project Origin

    The project’s home can be anywhere in the world where we can make payment without undue burden.

  • Usefulness

    Activities which are not sufficient for an award on their own include: writing open source software (notwithstanding manifesto principle #7); building something cool with web technologies; and translating open source software into another language.

  • Mozilla Mission

    The project should benefit Mozilla’s mission. This is normally demonstrated by tying the objective of the project to specific Mozilla manifesto principles or other demonstrated priorities.

We expect the vast majority of MOSS awards to be singular rather than regular — that is, support for doing a particular defined thing, rather than ongoing support for a project in general. However a previous award proposal, successful or unsuccessful, does not disqualify a project from applying again. The minimum award for the Mission Partners track is $10,000, and the maximum is $250,000.

How we’ll make our decision

All criteria are indicative rather than determinative — that is to say, they will make us more or less likely to make an award, but none will guarantee a particular outcome.

Selection criteria:

  • How significantly does the project advance the Mozilla mission?

  • What sort of reputation does the project have in general, if any?

  • This includes reputation in technical, inclusion and other areas

  • Is the project known for something besides the code we are relying on?

  • Will this award make a significant impact on the project?'

  • Is the level of funding appropriate for the task to be accomplished?

  • Does the person (or group) who will receive the money have a track record of delivering?

How to apply

To get started with your application, simply follow the link below. MOSS applications are considered by the committee on a rolling basis each month; typically, you can expect to hear back from us within two months of submitting your application. If you have any questions regarding your application, please email the MOSS team.

I’m ready!

Apply Now


What about tax?
Recipients are responsible to determine the tax implications of receiving an award, based on their respective countries’ tax laws and compliance requirements. Amounts applied for should be sized such that any tax or other liability that will be incurred is accounted for. Mozilla reserves the right to use different payment mechanisms or tax characterizations for different awards in the MOSS program based on a number of factors specific to the award.

A little bit more