Add-ons
Miscellaneous
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ThundAi Q/A - Ask your email Questions
AI-powered email search and question answering for Thunderbird. Search your emails with natural language questions. Use a ? to ask questions, otherwise it will default to search by keyword sorted most recent first.
Requires an OpenAI API key!
Provider for Google Calendar
Provider for Google Calendar connects Thunderbird with Google Calendar for full task sync, conference details, and scheduling support. It offers deeper integration than Thunderbird’s native support using Google’s official API.
Thunderbird Todoist
ThunderStats! Your Thunderbird Statistics!
Do you remember the old good Eudora statistics? Do you miss them?
Using this addon you can finally keep an eye on how you use your beloved Thunderbird!
Interstellar Alliance Social Experiment Step 3
Send the Interstellar Alliance Social Experiment Step 3 letter as an email to a predefined online list of recipients.
Email Original
El sello que permitirá a tus destinatarios de tus correos electrónicos, validar la autenticidad y legitimidad de tus direcciones de correo electrónico, poniendo esa necesaria barrera a las posibles suplantaciones de identidad (phishing ó spoofing).
ÖTEK Currency Converter
Proton Drive Toolbar Button
Adds a Proton Drive button to the toolbar.
FiltaQuilla
Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.
Thunderbird Addons Test
This addon is completely defunct and merely for internal testing purposes. Don't expect it to do anything.
ThirdStats
Beautifully visualized statistics for your Thunderbird Email Accounts
CrossWeird-Puzzle
Find, select & drag words from your emails. Solve tech-themed puzzles. 21 puzzles, 3 levels, email-only input validation & more to discover. Perfect for Thunderbird users who like productivity & ..fun?
Made by Michael 'ThunderBard' Ellis.
Whois RDAP Lookup
The Thunderbird add-on Whois/RDAP Lookup lets you check a sender’s domain with one click: view the owner, registration, and NS servers, and quickly audit domains. It automatically updates the domain suffix list and supports 9 languages.
Header Tools Improved
Allows to modify headers and source of messages
Account Check
Checks account settings against those listed in the Thunderbird autoconfig database and offers to fix settings that don't match. This is the same check performed when setting up an account.
Sortana
Sortana adds AI-powered email filtering to Thunderbird. Configure your own endpoint and tailor prompts to automatically classify messages. Tune generation settings, cache results across restarts, and debug with colorized logs.
Bugmail Revived
WebExtension implementation of the original add-on by Fabrice Desré and Colin Guthrie.
This replaces earlier releases by the original authors and a "fixed version" which existed for Thunderbird 68–73.
DeepL-Write for selected text
Unofficial DeepL Write extension for Thunderbird.
Quicktext
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
New message folder navigation
A Thunderbird add-on designed to help navigate through folders containing new emails received using keyboard shortcuts and a menu (newly received emails, emails whose subject has not been viewed).
Made in collaboration with Grisous.
To create your own collections, you must have a Mozilla Add-ons account.
