> For the complete documentation index, see [llms.txt](https://developer.thunderbird.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.thunderbird.net/thunderbird-development.md).

# Contributing to Thunderbird

- [Getting Started Contributing](https://developer.thunderbird.net/thunderbird-development/getting-started.md): New contributor guide on how to contribute in various ways to Thunderbird.
- [Setting Up A Build Environment](https://developer.thunderbird.net/thunderbird-development/setting-up-a-build-environment.md): This page has all the information you need to get your development environment set up and ready to hack on Thunderbird.
- [Building Thunderbird](https://developer.thunderbird.net/thunderbird-development/building-thunderbird.md): How to build and run Thunderbird.
- [Windows Build Prerequisites](https://developer.thunderbird.net/thunderbird-development/building-thunderbird/windows-build-prerequisites.md): This page has all the information you need to get your Windows development environment set up and ready to hack on Thunderbird.
- [Linux Build Prerequisites](https://developer.thunderbird.net/thunderbird-development/building-thunderbird/linux-build-prerequisites.md): This page has all the information you need to get your GNU/Linux development environment set up and ready to hack on Thunderbird.
- [macOS Build Prerequisites](https://developer.thunderbird.net/thunderbird-development/building-thunderbird/macos-build-prerequisites.md): This page has all the information you need to get your macOS development environment set up and ready to hack on Thunderbird.
- [Artifact Builds](https://developer.thunderbird.net/thunderbird-development/building-thunderbird/artifact-builds.md): … or, How To Build Without Building
- [Codebase Overview](https://developer.thunderbird.net/thunderbird-development/codebase-overview.md): A high-level look at the project's architecture and a guide to where to find things.
- [Account Configuration](https://developer.thunderbird.net/thunderbird-development/codebase-overview/account-configuration.md)
- [Address Book](https://developer.thunderbird.net/thunderbird-development/codebase-overview/address-book.md)
- [Chat Core](https://developer.thunderbird.net/thunderbird-development/codebase-overview/chat.md)
- [Notifications](https://developer.thunderbird.net/thunderbird-development/codebase-overview/chat/notifications.md)
- [Message Styles](https://developer.thunderbird.net/thunderbird-development/codebase-overview/chat/message-styles.md)
- [Keyboard shortcuts](https://developer.thunderbird.net/thunderbird-development/codebase-overview/chat/keyboard-shortcuts.md)
- [Chat Core Protocols](https://developer.thunderbird.net/thunderbird-development/codebase-overview/chat/chat-core-protocols.md)
- [Contacts](https://developer.thunderbird.net/thunderbird-development/codebase-overview/chat/contacts.md)
- [Mail Front-End](https://developer.thunderbird.net/thunderbird-development/codebase-overview/mail-front-end.md): A.K.A. the 3-pane tabs and message tabs/windows
- [Tutorials and Examples](https://developer.thunderbird.net/thunderbird-development/tutorials-and-examples.md): From Hello World to Thunder Live Development videos, get acquainted with the codebase and learn how to contribute to the Thunderbird project.
- [Hello World Example](https://developer.thunderbird.net/thunderbird-development/tutorials-and-examples/hello-world.md): How to make a "Hello World" prompt in Thunderbird.
- [Thunderbird Live Development Videos](https://developer.thunderbird.net/thunderbird-development/tutorials-and-examples/thunderbird-live-development-videos.md): Follow along with UX Architect Alessandro as he works on various parts of Thunderbird, fixing bugs, changing the UX/UI, and showing how to participate in Thunderbird's development.
- [Fixing a Bug](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug.md): Tutorial on how to fix a bug from beginning to end.
- [Bug Triaging 101](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/bug-triaging.md): Tutorial on how to dive into triaging bugs.
- [Bug Status Classicification](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/bug-triaging/bug-status-classification.md)
- [Bug Types](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/bug-triaging/bug-types.md)
- [Garbage Collection](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/bug-triaging/garbage-collection.md)
- [Narrow the Scope](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/bug-triaging/narrow-the-scope.md)
- [Lint and Format Code](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/lint-and-format-code.md): How to lint and format code.
- [Using ESLint to Format Javascript Code](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/using-eslint.md): Using ESLint to Format Javascript Code
- [Try Server](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/try-server.md)
- [Landing a Patch](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/landing-a-patch.md): Tutorial on how to land approved and reviewed patches to Thunderbird
- [Care and Feeding of the Tree](https://developer.thunderbird.net/thunderbird-development/fixing-a-bug/care-and-feeding-of-the-tree.md)
- [Testing](https://developer.thunderbird.net/thunderbird-development/testing.md)
- [Running Tests](https://developer.thunderbird.net/thunderbird-development/testing/running-tests.md): How to run Thunderbird's automated tests.
- [Adding Tests](https://developer.thunderbird.net/thunderbird-development/testing/adding-tests.md): How to add your own tests for Thunderbird.
- [Writing Mochitest Tests](https://developer.thunderbird.net/thunderbird-development/testing/writing-mochitest-tests.md): Tips on writing Mochitest tests for Thunderbird.