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    • fxa

      Public
      Monorepo for Mozilla Accounts (formerly Firefox Accounts)
      TypeScript
      •
      Mozilla Public License 2.0
      •218•655•15•24•Updated Oct 28, 2025Oct 28, 2025

    • treeherder

      Public
      A system for managing CI data for Mozilla projects
      reactpythondockerdjangocontinuous-integrationdocker-composereactjsdjango-rest-frameworkmozillatreeherder
      Python
      •
      Other
      •372•268•0•60•Updated Oct 28, 2025Oct 28, 2025

    • experimenter

      Public
      A web application for managing user experiments for Mozilla Firefox.
      product-delivery
      Python
      •
      Mozilla Public License 2.0
      •214•139•336•15•Updated Oct 28, 2025Oct 28, 2025

    • application-services

      Public
      Firefox Application Services
      firefoxsyncpushfxa
      Rust
      •
      Other
      •248•653•1•20•Updated Oct 28, 2025Oct 28, 2025

    • release-notes

      Public
      Release notes and system requirements for our various Firefoxen
      mozillabedrockrelease-notesnucleus
      Python
      •
      Mozilla Public License 2.0
      •10•25•1•0•Updated Oct 28, 2025Oct 28, 2025

    • fx-desktop-qa-automation

      Public
      Automations of Fx Desktop release smoke tests
      HTML
      •
      Mozilla Public License 2.0
      •14•9•0•10•Updated Oct 28, 2025Oct 28, 2025

    • telemetry-airflow-dags

      Public
      DAGs collection for telemetry-airflow
      1•9•0•0•Updated Oct 28, 2025Oct 28, 2025

    • bigquery-etl

      Public
      Bigquery ETL
      Python
      •
      Mozilla Public License 2.0
      •124•325•128•105•Updated Oct 28, 2025Oct 28, 2025

    • code-review

      Public
      Automated static analysis & linting bot for Mozilla repositories
      static-analysismozillapython3code-review
      Python
      •
      Mozilla Public License 2.0
      •43•61•87•22•Updated Oct 28, 2025Oct 28, 2025

    • build-a-b

      Public
      TypeScript
      •0•2•0•2•Updated Oct 28, 2025Oct 28, 2025

    • multi-account-containers

      Public
      Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
      firefoxwebextension
      JavaScript
      •
      Mozilla Public License 2.0
      •393•3k•567•24•Updated Oct 28, 2025Oct 28, 2025

    • mozci

      Public
      A library for inspecting push and task results in Mozilla's CI
      pythonci
      Python
      •
      Mozilla Public License 2.0
      •22•13•87•4•Updated Oct 28, 2025Oct 28, 2025

    • glean

      Public
      Modern cross-platform telemetry
      Rust
      •
      Mozilla Public License 2.0
      •151•425•0•5•Updated Oct 28, 2025Oct 28, 2025

    • foundation-security-advisories

      Public
      Canonical source for Mozilla Foundation Security Advisories. http://www.mozilla.org/security/announce/
      Python
      •
      Mozilla Public License 2.0
      •33•20•2•5•Updated Oct 28, 2025Oct 28, 2025

    • moz-l10n

      Public
      Python and JavaScript tools for working with Mozilla localization files
      Python
      •2•8•8•1•Updated Oct 28, 2025Oct 28, 2025

    • fx-private-relay

      Public
      Keep your email safe from hackers and trackers. Make an email alias with 1 click, and keep your address to yourself.
      Python
      •
      Other
      •224•1.6k•31•2•Updated Oct 28, 2025Oct 28, 2025

    • addons-server

      Public
      🕶 addons.mozilla.org Django app and API 🎉
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •551•883•0•47•Updated Oct 28, 2025Oct 28, 2025

    • performance-data

      Public
      Respository to hold various performance data that is hosted on the performance dashboard.
      1•3•0•0•Updated Oct 28, 2025Oct 28, 2025

    • blurts-server

      Public
      Mozilla Monitor arms you with tools to keep your personal information safe. Find out what hackers already know about you and learn how to stay a step ahead of them.
      firefoxdata-breach
      Fluent
      •
      Mozilla Public License 2.0
      •272•857•21•25•Updated Oct 28, 2025Oct 28, 2025

    • releases-comm-central

      Public
      EXPERIMENTAL - copy of comm-central for forking on github
      JavaScript
      •103•188•52•24•Updated Oct 28, 2025Oct 28, 2025

    • looker-hub

      Public
      Hub for Mozilla Looker models
      LookML
      •17•16•0•0•Updated Oct 28, 2025Oct 28, 2025

    • jira-bugzilla-integration

      Public
      Jira Bugzilla Integration (JBI) - system to sync bugs and issues
      Python
      •
      Mozilla Public License 2.0
      •26•11•41•2•Updated Oct 28, 2025Oct 28, 2025

    • webextension-polyfill

      Public
      A lightweight polyfill library for Promise-based WebExtension APIs in Chrome
      JavaScript
      •
      Mozilla Public License 2.0
      •228•3k•23•27•Updated Oct 28, 2025Oct 28, 2025

    • rust-components-swift

      Public
      Swift Package for distributing Mozilla's Rust-based application components
      Swift
      •
      Mozilla Public License 2.0
      •14•36•0•1•Updated Oct 28, 2025Oct 28, 2025

    • perfcompare

      Public
      Improved Performance Comparison Tool
      TypeScript
      •
      Mozilla Public License 2.0
      •90•48•7•6•Updated Oct 28, 2025Oct 28, 2025

    • addons-frontend

      Public
      Front-end to complement mozilla/addons-server
      reactreduxmozillaaddonsamo
      JavaScript
      •
      Mozilla Public License 2.0
      •401•538•0•24•Updated Oct 28, 2025Oct 28, 2025

    • data-docs

      Public
      A guide for Mozilla's developers and data scientists to analyze and interpret the data gathered by our data collection systems.
      documentationmozillamozilla-telemetry
      Shell
      •
      Mozilla Public License 2.0
      •157•93•0•1•Updated Oct 28, 2025Oct 28, 2025

    • argocd-repository-details

      Public
      Go
      •
      Mozilla Public License 2.0
      •1•1•0•1•Updated Oct 28, 2025Oct 28, 2025

    • eslint-config-amo

      Public
      Shared eslint config for all amo related js projects
      JavaScript
      •
      Mozilla Public License 2.0
      •3•5•3•2•Updated Oct 28, 2025Oct 28, 2025

    • gpuweb-cts

      Public
      WebGPU Conformance Test Suite
      TypeScript
      •
      BSD 3-Clause "New" or "Revised" License
      •99•4•0•0•Updated Oct 28, 2025Oct 28, 2025