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CatchAll Bird

This extension improves the use of CatchAll-Addresses with Thunderbird.
It handles incoming messages addressed to all prefix@domain.tld for a fixed domain.
For each prefix the AddOn can create a new identity and folder.

Rated 5 out of 5 stars (4)
89 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)
62 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 (47)
29,413 users

Grammar and Spell Checker — LanguageTool

Check your emails for spelling and grammar issues

Rated 4 out of 5 stars (34)
56,479 users

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 (32)
33,879 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)
105 users

Toggle Address Box

Adds a Address Box button, toggles the Address Box in the Composer window

Not yet rated
66 users

Simple Template

You will be able to create and automatically insert templates for each account.

Rated 4 out of 5 stars (1)
264 users

Recently

Recently is a small Mozilla Thunderbird extension for having the most recent contacts at hand

Not yet rated
58 users

Emoji

It permits just with a single click to copy an emoji.
There is a search-box and the "Most used emojis" section (the first one).

If you want to send feedback or report bug, please go to https://github.com/Sav22999/emoji

Rated 5 out of 5 stars (12)
4,882 users

Notebird

Prendi appunti su tutte le email!

Rated 2 out of 5 stars (2)
138 users

MetaClean for Thunderbird

Removes metadata and hidden data in email attachments preventing the leakage of confidential information that occurs in this type of communication and avoiding possible economic and reputational damages derived from the malicious use of metadata.

Rated 2 out of 5 stars (1)
203 users

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)
649 users

Copy Address

Copy email address to clipboard.

Rated 4 out of 5 stars (12)
1,544 users

FileLink Provider for Dropbox

Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.

Rated 4 out of 5 stars (22)
46,218 users

composeSelectMacro

定型文4つ保存しておいて、メールを作成する時にそのテキスト文を挿入できるツールです
You can prepare four fixed phrases, select them when composing an email, and insert them in the body of the email.

Not yet rated
28 users

acus

Update 2023: This addon will be replaced by "arcus".

Modern encryption in Thunderbird

** Currently in testing phase **
What you can do:
1. Set your secret key and automatically decrypt emails
2. Generate a new key pair
3. Encrypt plain text

Not yet rated
4 users

Advanced Composer

Creates message templates with variable support, quote header in Ms Outlook style, signatures, custom attachment info for cloud files, and more.

Rated 4 out of 5 stars (8)
407 users

BestReply

BestReply is an add-on that aims to improve users’ experience by providing quick services to the user such as summarization of emails, response generations, as well as a smart chat with our AI model based on the email they are reading.

Rated 3 out of 5 stars (1)
8 users

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 support page on how to use and why it sometimes does not work!

Rated 4 out of 5 stars (35)
7,804 users