Linux · Internet & Browsers
Thunderbird ESR
Thunderbird is a free and open source email, newsfeed, chat, and calendaring client
by MZLA Technologies, part of the Mozilla Foundation
Official site: flathub.org
About Thunderbird ESR
Thunderbird is a free and open source email, newsfeed, chat, and
calendaring client, that’s easy to set up and customize. One of the core
principles of Thunderbird is the use and promotion of open standards -
this focus is a rejection of our world of closed platforms and services
that can’t communicate with each other. We want our users to have freedom
and choice in how they communicate.
Thunderbird is an open source project, which means anyone can contribute
ideas, designs, code, and time helping fellow users.
The official Extended Support Release channel is intended for users who want all available new features on an annual basis and stability/security fixes on a monthly basis.
How to install Thunderbird ESR
- Click Download — the developer's official website opens in a new tab.
- Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
- Prefer the command line? With Flatpak you can install and update it with: flatpak install flathub org.mozilla.thunderbird_esr
- Open Thunderbird ESR once it finishes installing.
Frequently asked questions
Is Thunderbird ESR free to download?
Yes. The Download button sends you to flathub.org, the developer's official site, where Thunderbird ESR is available to download. Flatnic doesn't host or modify any files.
How do I install Thunderbird ESR from the command line?
With Flatpak, run: flatpak install flathub org.mozilla.thunderbird_esr. This installs it from the official source and keeps it updated.
Is Thunderbird ESR safe?
Thunderbird ESR downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.
