Message Composition

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Text Insert/Text Blocks

Insert standard text blocks in an easy way in email composer. No mouse: done by keyboard.

Type br<ctrl-d>, it converts to best regards.

Make a list of shortcut-replacements in the addon settings (tools-> addons). Replacements may be multiline.

Not yet rated
0 users
Added Feb. 26, 2021

Markdown Here Revival

A revival of the popular Markdown-Here addon for Thunderbird 78 and beyond.

Markdown Here Revival is a Thunderbird extension that lets you write emails in Markdown and render them as HTML before sending.

Not yet rated
56 users
Added Feb. 5, 2021

Safe Links Cleaner

Clean up the display of links rewritten by Microsoft ATP Safe Links when reading and composing mail, so the original links can easily be viewed and copied, while retaining the rewritten addresses as the actual target of all links.

Not yet rated
15 users
Added Jan. 25, 2021

Autofile - fast e-mail to folder filing

Read an e-mail, hit Autofile button and it is filed / moved to the right mail folder based on the sender's address. No drag/drop needed.

Autofile can discover folders to store each author mail. Will save you lots of time like defunct filemail.

Rated 2 out of 5 stars (1)
35 users
Added Jan. 14, 2021

Add contact to CC by mentioning in body with @

Use @ to mention somebody on an email to link and add to the CC.

Not yet rated
60 users
Added Dec. 14, 2020

Replaceholder

Replace placeholders with date and time as you type.
入力画面の件名、本文内の各プレースホルダを日時や曜日等の文字列に置換します。

Rated 2 out of 5 stars (1)
8 users
Added Dec. 3, 2020

Textmarker

Highlights selected text when composing emails. Default colour is yellow - other colours are available via Options.
(Works only during writing an e-mail, i.e. only in the compose window.)

Rated 5 out of 5 stars (12)
1,383 users
Added Nov. 30, 2020

Simple Mail Redirection

Allows you to resend (also known as redirect) email messages.
Uses 'cardbook' if installed

Bases on the add-on 'Mail Redirect' by Onno Ekker and Pawel Krzesniak

Please see the help page on how to use and why it sometimes does not work!

Rated 5 out of 5 stars (11)
3,025 users
Added Nov. 3, 2020

Toggle Line Wrap

Toggle wrapping of long lines in the message composition window when writing plaintext messages. Wrapping can be controlled via a toolbar button and a keyboard shortcut.

Rated 5 out of 5 stars (4)
306 users
Added Nov. 1, 2020

StandardTexter

With the help of this Add-on, up to 99 pre-made texts (standard texts, text modules or even signatures) can be stored, which can then be retrieved and inserted when writing an e-mail.
The texts can be preformatted with HTML.

Rated 5 out of 5 stars (5)
371 users
Added Oct. 31, 2020

To must occur only once

This add-on changes all but the first "to" to "cc" if there are multiple "to" when replying to an email.

Not yet rated
26 users
Added Oct. 15, 2020

EML-Editor

Addons to edit EML files and save your emails as EML file with their attachements.

Available on Github with MIT Licence :
https://github.com/pgpgeek/thunderbird-addon-eml-editor

Not yet rated
105 users
Added Oct. 14, 2020

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)
112 users
Added Oct. 5, 2020

Transfer Immunity

Transfer Immunity is a fast and secure add-on and SaaS service for sharing and transferring files. This high-fidelity, SaaS-based platform allows users to send large files to different destinations as attachments with emails.

Not yet rated
40 users
Added Sept. 16, 2020

Previous Colors

Quickly choose one of the previously selected colors for a message text

Rated 5 out of 5 stars (5)
552 users
Added Aug. 8, 2020

PGPGeek

Quick & easy PGP encryption / decryption tool
* Save & use many public encryption keys to encrypt mail content
* Save & use many private decryption keys to decrypt mail content

Using openPGP.js

Open Source
https://github.com/pgpgeek/pgpgeek

Not yet rated
138 users
Added July 7, 2020

InsertSignature

Insert signature helps you to insert usually used text by your customization.

Rated 3 out of 5 stars (8)
851 users
Added June 10, 2020

Expand mailing lists

Adds an 'expand lists' button to the compose window. It replaces all mailing lists with their contacts.

Rated 5 out of 5 stars (2)
284 users
Added March 28, 2020

FileLink for Plik

Upload large attachments to Plik and send the link by email

Rated 5 out of 5 stars (1)
887 users
Added March 20, 2020

Copy Address

Copy email address to clipboard.

Rated 4 out of 5 stars (5)
765 users
Added March 20, 2020