Governance

Overview

To add, remove, or update module information, see the mots documentation.

Thunderbird operates under Mozilla’s module ownership governance system. A module is a discrete unit of code or activity. An owner is the person in charge of a module or sub-module. A peer is a person whom the owner has appointed to help them. A module may have multiple peers and, very occasionally, multiple owners.

The system is overseen by the owner and peers of the Module Ownership module. For the modules that make up Thunderbird, oversight is provided by the Thunderbird Council module. Owners may add and remove peers from their modules as they wish, without reference to anyone else.

Modules

Thunderbird Council

The Thunderbird Council is the elected governing body for the Thunderbird Project, including the code modules that develop the code in Thunderbird product(s). It is the top-level module of the project, and Peers are members of the Council. To read the details about the qualifications and expectations of Council members, please see the [Council Bylaws on GitHub](https://github.com/thund erbird/council-docs/blob/main/BY_LAWS.md#election-procedure). Below you can find a list of all current council members along with their bugzilla.mozilla.org \(BMO\) handle. To contact the council members, please email <council@thunderbird.net>.

Owner(s)	Danny Colin (sdk)
Peer(s)	John Bieling (TbSync) Patrick Cloke (clokep) Philipp Kewisch (Fallen) Teal Dulcet (tdulcet) Kai Engert (KaiE)
Includes	README.md
Excludes	suite/**

Thunderbird Desktop

Standalone Mail Application.

Owner(s)	Thunderbird Council (thunderbird_council)
Peer(s)	Magnus Melin (mkmelin) Geoff Lankow (darktrojan) Richard Marti (Paenglab) Alessandro Castellani (aleca)
Owner(s) Emeritus	Mark Banner, David Bienvenu, Scott MacGregor
Peer(s) Emeritus	Blake Winton, Mike Conley, Kent James, Jorg K, Aceman
Includes	mail/ python/ other-licenses//thunderbird/ third_party/ tools/
URL	https://developer.thunderbird.net/
Bugzilla Components	Thunderbird

Addon Support

APIs to enable extensions, as well as their installation

Owner(s)	John Bieling (TbSync)
Peer(s)	Geoff Lankow (darktrojan) Philipp Kewisch (Fallen)
Includes	mail/components/extensions/**
Bugzilla Components	Thunderbird::Add-Ons Extensions API, Thunderbird::Add-Ons General

Build Config

Build, CI, Release Engineering

Owner(s)	Rob Lemley (rjl)
Peer(s)	Daniel Darnell (dandarnell)
Peer(s) Emeritus	Mark Banner, Siddharth Agarwal, Justin Wood, Joshua Cranmer, Tom Prince, aleth, Philipp Kewisch
Includes	build/ mail/config/ taskcluster/**
Bugzilla Components	Thunderbird::Build Config

Instant Messaging

The chat and instant messaging component of Thunderbird

Owner(s)	Patrick Cloke (clokep)
Peer(s)	Martin Giger (freaktechnik)
Owner(s) Emeritus	Florian Quèze
Peer(s) Emeritus	aleth, Benedikt Pfeifer
Includes	mail/components/im/ chat/
Bugzilla Components	Thunderbird::Instant Messaging

Message Security

OpenPGP and S/MIME message security

Owner(s)	Kai Engert (KaiE)
Peer(s)	Patrick Brunschwig (patrick) Magnus Melin (mkmelin)
Includes	mail/extensions/openpgp/ mail/extensions/smime/
Bugzilla Components	MailNews Core::Security: OpenPGP, MailNews Core::Security: S/MIME

Theme

The interface of Thunderbird related to the OS and custom themes

Owner(s)	Richard Marti (Paenglab) Alessandro Castellani (aleca)
Peer(s) Emeritus	Josiah Bruner (:JosiahOne), Blake Winton, Mike Conley
Includes	mail/themes/**
Bugzilla Components	Thunderbird::Theme

UX (User Experience)

Usability and user journey, including User Interface and Accessibility

Owner(s)	Alessandro Castellani (aleca)
Peer(s)	Richard Marti (Paenglab) Magnus Melin (mkmelin)
Peer(s) Emeritus	Blake Winton, Henry Wilkes
Includes	mail/branding/**
Bugzilla Components	Thunderbird::General

Calendar

Calendaring components

Owner(s)	Philipp Kewisch (Fallen)
Peer(s)	Geoff Lankow (darktrojan) Sean Burke (leftmostcat)
Owner(s) Emeritus	Daniel Bölzle, Michiel van Leeuwen
Peer(s) Emeritus	Martin Schröder, Daniel Bölzle, Clint Talbert, Dan Mosendale, Michiel van Leeuwen, Paul Morris, Mark Carson, Robert Strong, Simon Paquet, Bruno Browning, Sebastian Schwieger, Stefan Sitter, Matthew Mecca, Blake Winton, Andreas Nilsson, Christian Jansen, Bryan Clark, Tobias Markus, Tom Ellins, Matthew Willis, Joey Minta, Michael Büttner, Berend Cornelius, Mostafa Hosseini
Includes	calendar/**
Bugzilla Components	Calendar

User Interface (UI)

Owner(s)	Richard Marti (Paenglab)
Peer(s)	Alessandro Castellani (aleca)
Includes	calendar/base/content/ calendar/base/themes/
Bugzilla Components	Calendar::Calendar Frontend

Mail and News Core

Owner(s)	Thunderbird Council (thunderbird_council)
Peer(s)	Ben Campbell (benc) Neil Rashbrook (neil) Magnus Melin (mkmelin)
Owner(s) Emeritus	Joshua Cranmer
Peer(s) Emeritus	Karsten Düsterloh (mnyromyr), Kai Engert, David Bienvenu (bienvenu), Mark Banner, Kent James, Aceman
Includes	mailnews/**
Bugzilla Components	MailNews Core::Backend, Thunderbird::Account Manager, Thunderbird::Migration, MailNews Core::Account Manager, MailNews Core::Composition, MailNews Core::Filters, MailNews Core::Internationalization, MailNews Core::Movemail, MailNews Core::Networking, MailNews Core::Networking - POP, MailNews Core::Printing, MailNews Core::Profile Migration, MailNews Core::Search, MailNews Core::Security, MailNews Core::Simple MAPI

Addressbook

Owner(s)	Geoff Lankow (darktrojan)
Peer(s)	Magnus Melin (mkmelin)
Peer(s) Emeritus	David Bienvenu (bienvenu), Mark Banner, Mike Conley, Aceman
Includes	mailnews/addrbook/**
Bugzilla Components	MailNews Core::Address Book

Exchange

Code responsible for sending/receiving messages over Exchange.

Owner(s)	Sean Burke (leftmostcat)
Peer(s)	Brendan Abolivier (babolivier)
Includes	mailnews/protocols/ews/ rust/ews_xpcom/

Feeds

Owner(s)	Nobody (nobody)
Peer(s)	Magnus Melin (mkmelin)
Peer(s) Emeritus	alta88
Includes	mailnews/extensions/newsblog/**
Bugzilla Components	MailNews Core::Feed Reader

GloDa

Global message database

Owner(s)	Nobody (nobody)
Peer(s) Emeritus	Jonathan Protzenko
Includes	mailnews/db/gloda/**

IMAP handling code

Owner(s)	gene smith (gds)
Peer(s) Emeritus	Kent James
Includes	mailnews/imap/**
Bugzilla Components	MailNews Core::Networking: IMAP

Import

Warning

This module does not have any owners specified.

Peer(s)	Magnus Melin (mkmelin)
Peer(s) Emeritus	David Bienvenu (bienvenu), Mark Banner, Jorg K
Includes	mailnews/import/**
Bugzilla Components	MailNews Core::Import

Localization

Owner(s)	Nobody (nobody)
Peer(s)	Philipp Kewisch (Fallen)
Peer(s) Emeritus	Mark Banner
Includes	calendar/locales/ chat/locales/ mail/locales/**
Bugzilla Components	MailNews Core::Localization

MIME Parser

RFC822 MIME Parser

Owner(s)	Nobody (nobody)
Peer(s)	Magnus Melin (mkmelin)
Owner(s) Emeritus	David Bienvenu (bienvenu)
Peer(s) Emeritus	Kai Engert, Jorg K, Jim Porter, Joshua Cranmer
Includes	mailnews/mime/**
Bugzilla Components	MailNews Core::MIME, MailNews Core::Attachments

Message Database

MSF files

Owner(s)	Ben Campbell (benc)
Owner(s) Emeritus	David Bienvenu (bienvenu)
Peer(s) Emeritus	Kent James, Aceman, Joshua Cranmer
Includes	mailnews/db/**
Bugzilla Components	MailNews Core::Database

News

Owner(s)	Nobody (nobody)
Owner(s) Emeritus	Joshua Cranmer
Peer(s) Emeritus	David Bienvenu (bienvenu)
Includes	mailnews/news/**
Bugzilla Components	MailNews Core::Networking: NNTP

SMTP

Code responsible for sending messages over SMTP.

Owner(s)	Nobody (nobody)
Owner(s) Emeritus	Ping Chen
Includes	mailnews/compose/**
Bugzilla Components	MailNews Core::Networking: SMTP

Unit Testing Infrastructure

Owner(s)	Geoff Lankow (darktrojan)
Peer(s)	Magnus Melin (mkmelin)
Owner(s) Emeritus	Mark Banner
Peer(s) Emeritus	Joshua Cranmer
Includes	mailnews/test/ mailnews/base/test/
Bugzilla Components	MailNews Core::Testing Infrastructure

mots config

Owner(s)	Rob Lemley (rjl)
Includes	mots.yaml