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    108 repositories

    • github-action-thunderbird-aaq

      Public
      github action to get all the Thunderbird SUMO forum questions aka Ask a Question or AAQ
      Ruby
      •
      Mozilla Public License 2.0
      •2•0•5•0•Updated Feb 10, 2026Feb 10, 2026

    • thunderbird-l10n

      Public
      Localized messages for Thunderbird
      Fluent
      •
      Mozilla Public License 2.0
      •3•6•0•0•Updated Feb 10, 2026Feb 10, 2026

    • tb-website-builds

      Public
      The static files hosted on thunderbird.net
      HTML
      •3•8•0•0•Updated Feb 10, 2026Feb 10, 2026

    • thunderbird.net-l10n

      Public
      gettext files for thunderbird.net and start.thunderbird.net
      Mozilla Public License 2.0
      •5•8•1•0•Updated Feb 10, 2026Feb 10, 2026

    • thunderbird-android

      Public
      Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)
      androidcommunicationemailmozilla
      Kotlin
      •
      Apache License 2.0
      •2.7k•13k•919•18•Updated Feb 10, 2026Feb 10, 2026

    • tbpro-add-on

      Public
      Thunderbird Pro Add-On
      TypeScript
      •
      Mozilla Public License 2.0
      •3•36•93•11•Updated Feb 9, 2026Feb 9, 2026

    • github-action-thunderbird-kb

      Public
      github action to get all the Thunderbird SUMO Knowledge Base Articles
      Ruby
      •
      Mozilla Public License 2.0
      •0•0•0•0•Updated Feb 9, 2026Feb 9, 2026

    • webext-reports

      Public
      Reports for extensions hosted on ATN
      JavaScript
      •
      Mozilla Public License 2.0
      •0•1•0•0•Updated Feb 9, 2026Feb 9, 2026

    • thunderbird-l10n-source

      Public
      Thunderbird source strings (equivalent of firefox-l10n-source)
      Fluent
      •
      Mozilla Public License 2.0
      •1•0•0•0•Updated Feb 9, 2026Feb 9, 2026

    • thunderbird-ios

      Public
      Thunderbird for iOS – Open Source Email App for iOS
      Swift
      •
      Mozilla Public License 2.0
      •21•776•47•1•Updated Feb 9, 2026Feb 9, 2026

    • thunderbird-notes

      Public
      Release Notes for Thunderbird
      Python
      •15•38•5•1•Updated Feb 9, 2026Feb 9, 2026

    • thunderbird-accounts

      Public
      Thunderbird Accounts
      Python
      •
      Mozilla Public License 2.0
      •2•16•116•7•Updated Feb 9, 2026Feb 9, 2026

    • appointment

      Public
      Invite others to grab times on your calendar. Choose a date. Make appointments as easy as it gets.
      calendarschedulingappointment-schedulingappointment-bookingappointments-manager
      Python
      •
      Mozilla Public License 2.0
      •16•409•216•7•Updated Feb 9, 2026Feb 9, 2026

    • comm-unified-l10n

      Public
      Git mirror of current release branches used for localization
      MIT License
      •0•0•0•0•Updated Feb 9, 2026Feb 9, 2026

    • thunderbird-mobile-components

      Public
      Thunderbird Mobile Components
      Kotlin
      •
      Mozilla Public License 2.0
      •3•3•0•4•Updated Feb 9, 2026Feb 9, 2026

    • council-docs

      Public
      Official Thunderbird Council documents.
      CSS
      •
      Mozilla Public License 2.0
      •5•6•0•2•Updated Feb 9, 2026Feb 9, 2026

    • thunderbird-website

      Public
      Build code for the websites on thunderbird.net and start.thunderbird.net
      HTML
      •103•246•112•23•Updated Feb 6, 2026Feb 6, 2026

    • import-export-tools-ng

      Public
      Import Export Tools that supports Thunderbird v68-v128
      HTML
      •
      Other
      •40•375•424•1•Updated Feb 5, 2026Feb 5, 2026

    • observability

      Public
      Observability strategies for TBPro
      Python
      •
      Mozilla Public License 2.0
      •0•0•17•0•Updated Feb 5, 2026Feb 5, 2026

    • autoconfig

      Public
      The ISPDB, Thunderbird's database of mail configuration files.
      thunderbirdimapmozillasmtppop3autoconfigispdb
      Python
      •
      Mozilla Public License 2.0
      •61•90•10•5•Updated Feb 5, 2026Feb 5, 2026

    • webext-docs

      Public
      MailExtension Documentation
      Python
      •18•26•3•0•Updated Feb 5, 2026Feb 5, 2026

    • webext-docs-generator

      Public
      Script to generate the content of webext-docs
      JavaScript
      •
      Mozilla Public License 2.0
      •1•1•1•0•Updated Feb 5, 2026Feb 5, 2026

    • thunderbird-desktop-staging

      Public
      This repository is for testing migration of hg->git.
      JavaScript
      •0•1•0•0•Updated Feb 5, 2026Feb 5, 2026

    • webext-support

      Public
      Additional resources for extension developers (tools, scripts, custom elements, Experiment APIs)
      JavaScript
      •
      Mozilla Public License 2.0
      •24•24•0•0•Updated Feb 4, 2026Feb 4, 2026

    • webext-annotated-schemas

      Public
      Annotated WebExtension schema files for Thunderbird
      Fluent
      •
      Mozilla Public License 2.0
      •1•3•0•0•Updated Feb 4, 2026Feb 4, 2026

    • addons-server

      Public
      🕶 addons.thunderbird.net Django app and API, forked from addons.mozilla.org 🎉
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •551•18•94•5•Updated Feb 3, 2026Feb 3, 2026

    • developer-docs

      Public
      Developer documentation for Thunderbird contributors.
      Mozilla Public License 2.0
      •83•103•31•2•Updated Feb 3, 2026Feb 3, 2026

    • services-ui

      Public
      Shared components for Thunderbird Services Vuejs applications
      Vue
      •
      Mozilla Public License 2.0
      •0•7•20•1•Updated Feb 3, 2026Feb 3, 2026

    • pulumi

      Public
      Common Pulumi elements for use in Thunderbird infrastructure development
      Python
      •
      Mozilla Public License 2.0
      •4•5•36•3•Updated Feb 3, 2026Feb 3, 2026

    • webext-examples

      Public
      Example extensions for Thunderbird WebExtensions APIs
      JavaScript
      •36•97•2•0•Updated Feb 3, 2026Feb 3, 2026