Apps with 'Thunderbird Extensions' feature

End-to-end encrypted app for email, calendar, and contacts, requiring no personal data, with open source code and quantum-resistant security.

An AI-powered proofreading tool supports over 20 languages, offering free and premium versions with extensive grammar checks across multiple apps.

Organize events with encrypted privacy, zero-knowledge and no tracking. Features include multi-device sync, multiple views, and offline support.

Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .

All we know the availability of popular AdBlockers lying around... but frankly, these are too bloated with several features and options which most of us don't use beyond the defaults. So, this extension was made for those of us who don't care about all that stuff but...

AI Anywhere is handy helper for ChatGPT (created by OpenAI).

Automatically sync calendars and contacts between Thunderbird, Outlook and Android devices, without using the cloud or servers.

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Darko will make your Thunderbird messages dark.

Web Translate is a tool designed to integrate with your web browser or Thunderbird, providing seamless access to a variety of popular translation services. It is primarily aimed at facilitating quick translations directly from your browser, negating the need to navigate to a...

Link in Tab changes how links are opened in your Thunderbird messages.

Beautifully visualized statistics for your Thunderbird email accounts.

This add-on adds awesome statistics to your beloved Thunderbird!.

This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

Bamboo is a feed reader add-on for https://addons.palemoon.org/addon/bamboo-feed-reader/ (and Thunderbird & Mozilla Firefox - Versions 3.0 - 45.* & ? - 56.* [1])

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

FireTray is system tray extension for Linux and Windows that targets Mozilla Firefox, Thunderbird and SeaMonkey.

This add-on lets you search messages in one or several folders to locate duplicates: Messages which are identical – according to some comparison criteria you chose.

This plugin adds a button to Thunderbird to add a new task for the selected email. Project and due date can be set directly when adding a task. It is also possible to add a link to the task which opens the email in Thunderbird.

ExQuilla is an addon for Mozilla's Thunderbird email client that allows access to both messages and contacts stored on Microsoft Exchange 2007 or 2010.

WebPG is a free, open source suite of tools to bring OpenPGP (GnuPG/PGP, gpg, gnupg) to the browser, in an effort to make cryptographic methods usable, safe and accessible to the common man.

Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.

WebApp Tabs allows you to configure a set of WebApps for easy access within Thunderbird. Each WebApp will open in its own tab in Thunderbird’s main window where it should work exactly as if it was in Firefox.

TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.

Thunderbird-Tray is a system tray launcher tool for Mozilla Thunderbird.