Skip to content

Navigation Menu

Appearance settings

thunderbird

View all features
- BY COMPANY SIZE
  Enterprises
  Small and medium teams
  Startups
  Nonprofits
- BY USE CASE
  App Modernization
  DevSecOps
  DevOps
  CI/CD
  View all use cases
- BY INDUSTRY
  Healthcare
  Financial services
  Manufacturing
  Government
  View all industries
View all solutions
- EXPLORE BY TOPIC
  AI
  Software Development
  DevOps
  Security
  View all topics
- EXPLORE BY TYPE
  Customer stories
  Events & webinars
  Ebooks & reports
  Business insights
  GitHub Skills
- SUPPORT & SERVICES
  Documentation
  Customer support
  Community forum
  Trust center
  Partners
- COMMUNITY
  GitHub SponsorsFund open source developers
- PROGRAMS
  Security Lab
  Maintainer Community
  Accelerator
  Archive Program
- REPOSITORIES
  Topics
  Trending
  Collections
- ENTERPRISE SOLUTIONS
  Enterprise platformAI-powered developer platform
- AVAILABLE ADD-ONS
  GitHub Advanced SecurityEnterprise-grade security features
  Copilot for BusinessEnterprise-grade AI features
  Premium SupportEnterprise-grade 24/7 support
Pricing

Search code, repositories, users, issues, pull requests...

Search

Clear

Search syntax tips

Provide feedback

We read every piece of feedback, and take your input very seriously.

Include my email address so I can be contacted

Saved searches

Use saved searches to filter your results more quickly

Name

Query

To see all available qualifiers, see our documentation.

Appearance settings

You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session.

Dismiss alert

Mozilla Thunderbird

Verified
We've verified that the organization thunderbird controls the domain:
- thunderbird.net
Learn more about verified organizations

1.3k followers
https://thunderbird.net

Overview
Repositories
Projects
Packages
People

More

Overview
Repositories
Projects
Packages
People

Pinned Loading

thunderbird-android thunderbird-android Public

Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

Kotlin 13.1k 2.7k
thunderbird-website thunderbird-website Public

Build code for the websites on thunderbird.net and start.thunderbird.net

HTML 246 103
webext-docs webext-docs Public

MailExtension Documentation

Python 26 18
thunderbird-notes thunderbird-notes Public

Release Notes for Thunderbird

Python 38 15
developer-docs developer-docs Public

Developer documentation for Thunderbird contributors.

103 83
webext-experiments webext-experiments Public

WebExtension Experiments for Thunderbird

JavaScript 33 16

Repositories

Loading

Type

Select type

All Public Sources Forks Archived Mirrors Templates

Language

Select language

All C CSS Fluent HTML Java JavaScript Kotlin Python R Ruby Rust SCSS Shell Swift TypeScript Vue

Sort

Select order

Last updated Name Stars

Showing 10 of 108 repositories

appointment Public
Invite others to grab times on your calendar. Choose a date. Make appointments as easy as it gets.

thunderbird/appointment’s past year of commit activity

Python 410 MPL-2.0 16 216 7 Updated Feb 10, 2026
thunderbird-android Public
Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

thunderbird/thunderbird-android’s past year of commit activity

Kotlin 13,104 Apache-2.0 2,694 921 (30 issues need help) 21 Updated Feb 10, 2026
thunderbird-l10n Public
Localized messages for Thunderbird

thunderbird/thunderbird-l10n’s past year of commit activity

Fluent 6 MPL-2.0 3 0 0 Updated Feb 10, 2026
thunderbird-desktop Public
This repository is for testing migration of hg->git. It is not (yet) an official repository for Thunderbird.

thunderbird/thunderbird-desktop’s past year of commit activity

JavaScript 20 6 0 0 Updated Feb 10, 2026
github-action-thunderbird-aaq Public
github action to get all the Thunderbird SUMO forum questions aka Ask a Question or AAQ

thunderbird/github-action-thunderbird-aaq’s past year of commit activity

Ruby 0 MPL-2.0 2 5 0 Updated Feb 10, 2026
tbpro-add-on Public
Thunderbird Pro Add-On

thunderbird/tbpro-add-on’s past year of commit activity

TypeScript 36 MPL-2.0 3 93 11 Updated Feb 10, 2026
tb-website-builds Public
The static files hosted on thunderbird.net

thunderbird/tb-website-builds’s past year of commit activity

HTML 8 3 0 0 Updated Feb 10, 2026
thunderbird-notes Public
Release Notes for Thunderbird

thunderbird/thunderbird-notes’s past year of commit activity

Python 38 15 5 1 Updated Feb 10, 2026
thunderbird-l10n-source Public
Thunderbird source strings (equivalent of firefox-l10n-source)

thunderbird/thunderbird-l10n-source’s past year of commit activity

Fluent 0 MPL-2.0 1 0 0 Updated Feb 10, 2026
comm-unified-l10n Public
Git mirror of current release branches used for localization

thunderbird/comm-unified-l10n’s past year of commit activity

0 MIT 0 0 0 Updated Feb 10, 2026

View all repositories

People

Sponsors

Private Sponsor

Top languages

Loading…

Uh oh!

There was an error while loading. Please reload this page.

Most used topics

Loading…

Uh oh!

There was an error while loading. Please reload this page.

Footer

© 2026 GitHub, Inc.

Footer navigation

Terms
Privacy
Security
Status
Community
Docs
Contact

You can’t perform that action at this time.