Thunderbird Pro

Thunderbird Pro gives you an email address, appointment scheduling, and the ability to send large files with end-to-end encryption. It’s part of our effort to build services offering privacy-respecting alternatives to the platforms widely used today.

Tbpro Addon [STAGE]

[THIS ADD-ON IS NOT AVAILABLE FOR PUBLIC USE]
This add-on is meant for internal testing of your Thunderbird Pro Add-on

Customoji

Adds easy custom emojis to Thunderbird.

NOTE: you need to add the emojis yourself in the extension settings

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Remove Duplicate Messages

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

Font PT Selector

Permette di applicare la dimensione in punti anziché in pixel!

In tanti chiedevamo questo nei forum, per cui spero che vi sia utile!

Templates Reply

Templates Replay is a completely free and open-source extension that helps you create, manage, and reuse message templates directly from your compose window.
It’s designed for simplicity and convenience — no sign-ups and no data collection.

FlightArabia Latest

This add-on displays the latest articles from https://www.flightarabia.com . It fetches the site’s RSS feed or scrapes its homepage (if no RSS is available), then displays the results in a sidebar or tab within Thunderbird.

quickFilters

Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.

By popular demand, supports SORTING filters alphabetically.

Image Preview

Image Preview is a Thunderbird extension that allows you to preview image attachments and embedded images from email messages in a convenient popup window.

JP Spam Reporter Enhanced

Thunderbirdで迷惑メール・フィッシングメールを検出し、日本の報告機関に報告を行います（フィッシング対策協議会 https://www.antiphishing.jp/ 迷惑メール相談センター https://www.dekyo.or.jp/soudan/ 向けに添付した報告メールを作成します。VirusTotal、Google Safe Browsing、PhishTank対応。危険検出時に自動レポート作成。信頼できるドメインデータベース＋ホワイトリスト機能付き

Mass Emailer

MassEmailer is a marketing email campaign manager for Thunderbird that helps you send bulk emails with rate limiting and features that include customizable templates, contact list management, campaign scheduling, all while respecting email servers.

CardBook Featured

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

regimail

Add-On for sending regimail with Thunderbird on Windows, MacOS and Linux.

Hi Name Auto

Automatically inserts a friendly “Hi <FirstName>,” when replying and sending, saving time and avoiding the embarrassment of getting someone’s name wrong.

Such a time saver. This will become a standard.
How did you ever live without it.

LocalFolders

Add as many local folders as you want to.
New folders can reside on mapped or network locations.

iCanban - Kanban with ICAL

PrintingTools NG

PrintingTools NG enables many layout and formatting options for printing messages with header borders, sorting, attachment lists etc. PDF output can be auto named and Page options can ease printer settings.

It is your printing toolbox.

Auto Profile Picture

Upgrade your Thunderbird experience with intelligent and clearer sender visualization that transforms how you identify and manage emails — making email management smoother and more intuitive.

Date Time Formatter

Shows relative date-time in the column.
Note: you need to click "Select columns to display" and then -> "Relative Date/Time"