Thunderbird Software

uBlock Origin (uBO) is a CPU and memory-efficient wide-spectrum content blocker. It blocks ads, trackers, coin miners, popups, annoying anti-blockers, malware sites, etc., by default using EasyList, EasyPrivacy, Peter Lowe's Blocklist, Online Malicious URL Blocklist, and uBO...

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

Tails is a Debian based live CD/USB with the goal of providing complete Internet anonymity for the user.

This eye-care extension enables night mode creating dark themes for websites on the fly. Dark Reader inverts bright colors making them high contrast and easy to read at night.

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.

Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.

Grammalecte is a French grammar checker.

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 .

Capture full web page screenshots in Firefox, Chrome, Opera, Pale Moon or Internet Explorer Quick screenshots and annotations!

SOGo is groupware server with a focus on scalability and open standards.

SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV.Share your calendars, address books and mails in.

Drag scrollbar with your middle mouse button anywhere on the page. Supports also "grab and drag" style.

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

A powerful, free spelling and grammar checker. Scribens corrects 250 types of grammar mistakes. English and French.

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

Correctify is a lightweight desktop app that instantly fixes spelling and grammar in any app. Select your text and it corrects it in place — no copy-pasting. Includes mail correction and translation add-ons. Bilingual (EN/FR), fast, private and unobtrusive.

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.

Look up Japanese words with the hover of a mouse.

Beautifully visualized statistics for your Thunderbird email accounts.

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

PhotoME is a powerful tool to show and edit the meta data of image files. Thanks to the well organised layout and intuitive handling, it's possible to analyse and modify Exif and IPTC-NAA data as well as analyse ICC profiles - and it's completely FREE!

Google Chrome, Firefox, and Thunderbird extension that lets you write email in Markdown and render it before sending.