Access all your messages, calendars, and contacts in one fast app. Filter and organize the way you like. Manage all accounts separately or in a unified inbox. Thunderbird simply makes your life simpler.
Thunderbird helps your manage your appointments, contacts, and tasks. Stay organized, productive, and connected in one place. A video of a shield with the Thunderbird logo in the center of it.
This article describes how to install Thunderbird on Windows. If you are upgrading from a previous version of Thunderbird, see Update Thunderbird to the latest version.
Mozilla Thunderbird is a free and open-source [8] email client that also functions as a personal information manager with a calendar and contactbook, as well as an RSS feed reader, chat client (IRC/XMPP/Matrix), and news client.
Thunderbird is a feature-rich, reliable, and secure email client for managing your email. It's free and open source. Thunderbird has been around since 2004, and is used by many people around the world.