Thunderbird Pro August 2025 Update - The Thunderbird Blog
Aug 19, 2025 · Our team is hard at work on Thunderbird Pro. Get the latest developments on Thundermail, Appointment, and Send in our latest update.
Calendar and Date/Time :: Add-ons for Thunderbird
Dec 28, 2025 · Send Later True "Send Later" functionality to schedule the time for sending an email.
Thunderbird for Android March 2025 Progress Report
Apr 10, 2025 · Hello, everyone, and welcome to the Thunderbird for Android March 2025 Progress Report. We’re keeping our community updated on everything that’s been happening …
Supported WebExtension APIs - Thunderbird
Add-on Development A Guide to Extensions Supported WebExtension APIs Descriptions of all WebExtension API supported by Thunderbird.
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Who We Are — Thunderbird
Meet Thunderbird Thunderbird is a free and open-source software project founded in 2003 to make communicating and collaborating better. We are supported by the talent and generosity …
Provider for Exchange ActiveSync :: Add-ons for Thunderbird
Jul 28, 2025 · TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.
SmartTemplates :: Versions :: Add-ons for Thunderbird
Nov 25, 2025 · 4.16.4: Improved date variables — Fixed unreliable creation of month and weekday names in localized formats. The add-on now uses a standard method to generate …
Thunderbird Mobile — Thunderbird
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
Account Colors :: Versions :: Add-ons for Thunderbird
Jan 22, 2020 · Add extra features and styles to make Thunderbird your own.