sruf79 / halo-spaces

A calm, tidy design for Thunderbird on macOS – inspired by Apple Mail, with colourful spaces.

thunderbird / thunderbird-android

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

thunderbird / thunderbolt

AI You Control: Choose your models. Own your data. Eliminate vendor lock-in.

unode / firefox_decrypt

Firefox Decrypt is a tool to extract passwords from Mozilla (Firefox™, Waterfox™, Thunderbird®, SeaMonkey®) profiles

thunderbird / thunderbird-ios

Thunderbird for iOS – Open Source Email App for iOS

Betterbird / thunderbird-patches

Betterbird is a fork of Mozilla Thunderbird. Here are the patches that provide all the goodness.

thunderbird-conversations / thunderbird-conversations

An extension for Thunderbird that allows you to view threads as "real" conversations, including your own emails. This extension also adds a bunch of useful UI features in the conversation view.

thunderbird / appointment

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

melian69 / Thunderbird-Mail-Client-Setup-Guide

Thunderbird Setup Guide 2026: Easy Email Client Install for Windows 11 & 10

percentwasphose / itmo-schedule-calendar

Расписание ИТМО в календаре: ICS-подписка и read-only CalDAV для Apple Календаря, Google Календаря, Thunderbird, DAVx⁵, Outlook, Nextcloud и Android.

Novabird-Addons / NovaBird

NovaBird - addon packages for Thunderbird with ouverhauled UI and many features inc. new search and conversation engine