Message Composition

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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.

Not yet rated
2 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
31 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)
6 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 (11)
611 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 (8)
1,944 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)
239 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 (3)
223 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
25 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

Rated 1 out of 5 stars (1)
76 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)
100 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
21 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 (4)
481 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
115 users
Added July 7, 2020

InsertSignature

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

Rated 4 out of 5 stars (7)
804 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 (1)
224 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)
643 users
Added March 20, 2020

Copy Address

Copy email address to clipboard.

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

Limit non-BCC recipients

Check that number of non-BCC recipients does not exceed a parameter.

Rated 5 out of 5 stars (4)
317 users
Added Feb. 5, 2020

*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 (18)
10,500 users
Added Jan. 12, 2020

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 (9)
1,013 users
Added Dec. 27, 2019