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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)

198 users

Outlook/Teams Appointments

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

Rated 3 out of 5 stars (14)

5,962 users

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/

Not yet rated

13 users

Compact Headers

Limits displayed headers to 1 or 2 lines.

Rated 4 out of 5 stars (69)

12,344 users

Google Chat Tab

Open Google Chat in a Thunderbird Tab.

Update: 3 Dec 2024 -
Literally all this extension does is to open Google Chat in a separate tab. Thank you for all your kind comments! I made this to scratch an itch and I'm glad it has helped so many :)

Rated 4 out of 5 stars (11)

1,814 users

RT Archive Emails to Sugar & SuiteCRM

Archive Emails from Thunderbird to a Sugar or SuiteCRM record of your choice with RT Archive Email.
You can archive one or more emails, along with their attachments, to a Contact, Lead, Account, Opportunity, or Project.

Rated 4 out of 5 stars (5)

84 users

Start with Inbox

Selects the latest message in the Inbox after start of Thunderbird.

Rated 4 out of 5 stars (21)

2,147 users

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)

3 users

Dictionnaire occitan languedocien

Corrector ortografic en occitan lengadocian per Thunderbird.
Correcteur ortographique en occitan languedocien pour Thunderbird.

Not yet rated

15 users

Nostalgy++/ Manage, search and archive emails

Shortcuts to move/copy/archive messages, with folder name completion.
Rules for moving messages to folders.
Automatic rules by statistical observation/ by folder of conversation/thread.
Search dialog in a tab, with message display /folder tree.

Rated 5 out of 5 stars (78)

3,812 users

FileLink Provider for OwnCloud and NextCloud

Uploads your large attachments to your OwnCloud or NextCloud server and instead inserts a public link into your email.

Rated 4 out of 5 stars (13)

1,033 users

Grammar and Spell Checker — LanguageTool

Check your emails for spelling and grammar issues

Rated 4 out of 5 stars (37)

76,178 users

*cloud - FileLink for Nextcloud and ownCloud Featured

Upload large attachments to your Cloud and send the link by email

Rated 5 out of 5 stars (54)

39,171 users

QNote

Add sticky notes to your emails with this feature-rich, drop-in replacement for the XNote++ extension.

Rated 5 out of 5 stars (66)

7,059 users

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)

70 users

Archive 3 Month

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

Not yet rated

32 users

Link Creator

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

Rated 5 out of 5 stars (1)

999 users

telegramwebapp

Adds browser action icon to toolbar to open Telegram. See https://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/04/telegram-button/

Rated 3 out of 5 stars (2)

89 users

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.

Not yet rated

248 users

Birdbox

Maintain your favorite websites as spaces within Thunderbird

Rated 5 out of 5 stars (2)

38 users