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Reply with subaddress

Reply to a message that was sent to a subaddess with the same address.

Example: Your primary email is tim@mymail.tld, you receive a mail to the subaddress tim+mailinglists@mymail.tld, the sender of replies is set to tim+mailinglists@mymail.tld.

Rated 3 out of 5 stars (3)
66 users

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Outlook/Teams Appointments

Get the hidden appointment from an email from outlook/teams as a .ics-file - Icon: https://fontawesome.com/

Rated 4 out of 5 stars (13)
5,471 users

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wikipediasearchwebapp

Adds browser action icon to toolbar to open Wikipedia-Search. See http://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/05/wikipedia-suche-button/

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9 users

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Seafile Filelink2

Store attachments on a seafile share.

Rated 5 out of 5 stars (1)
64 users

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update-test

DO NOT install, this is for testing the update mechanism.

If you are interested in the functionality, use quicker quicksearch instead

Rated 3 out of 5 stars (1)
5 users

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Google Chat Tab

Open Google Chat in a Thunderbird Tab

Rated 4 out of 5 stars (10)
1,594 users

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Archive 3 Month

Archive messages that are older than 3 months in inbox and sent folder

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29 users

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Link Creator

Open selected URIs, URLs, e-mail addresses, telephone numbers and links.

Rated 5 out of 5 stars (1)
1,268 users

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Grammar and Spell Checker — LanguageTool

Check your emails for spelling and grammar issues

Rated 4 out of 5 stars (34)
67,267 users

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AddAccents

This extension allows you to easily insert accented characters as you type in firefox or thunderbird. It is similar to abctajpu (no longer supported). With the default settings, simply press "e" followed by "\" to insert "é" "a\" to insert "à" etc...

Rated 5 out of 5 stars (3)
174 users

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AI Mail Support

Add-on designed to enhance email management for both personal and professional use, integrating a set of adanced AI (LLM) features to optimize the email management experience.

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54 users

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Birdbox

Maintain your favorite websites as spaces within Thunderbird

Rated 5 out of 5 stars (1)
51 users

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Mark Button

Toolbar button to mark a message as read or unread with 1 click.

Rated 5 out of 5 stars (5)
183 users

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CT Cornish Spell-Checker - SWF

This is a spell-checker for the Cornish language in the Standard Written Form.

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3 users

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DMS HEADERS EXTRACTOR

An extension that help you to extract any header parameter of emails that exist in any selected folder or account or just all the accounts on your thunderbird by only precising it in the popup input

Rated 5 out of 5 stars (1)
37 users

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Tag Sync for TB

Syncronise/transfer tags, to other TB installations.

POP and some IMAP servers don't store tags (keywords).
This addon helps to have the same emails tagged on all TB installations.
Uses a central database, can be installed on your PC or server.

Rated 5 out of 5 stars (2)
205 users

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Chichewa Spell Check

This is a real time Chichewa Spell Checker (Malawi) supported on Firefox, Thunderbird, and Seamonkey.

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6 users

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Latgalīšu volūdys pareizraksteibys vuordineica

Biblioteka latgalīšu volūdys pareizraksteiys puorbaudei Firefox, Thunderbird, Seamonkey, Fennec

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1 user

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Dictionary of Spanish / Nicaragua

Dictionary of Terms of Nicaragua, Spanish dictionary based internaconal, adding support on behalf of cities and fruits, animals, plants, references, local echos and terms accepted by RAE.

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30 users

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Tibetan Spellchecker

Tibetan (bo) spellchecker at syllable level (not composed words).

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1 user

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