Thunderbird for MAC
Free, open-source email, calendar and contacts app for your Mac: manage every account separately or in a unified inbox, with no ads in your mail.
Thunderbird Overview
Thunderbird is a free and open-source email app for macOS that also manages your calendars, contacts and tasks in one place. All your email accounts live in a single app, so you can handle them separately or read everything in a unified inbox, then filter, search and organize your messages the way you like. Its developers say it is free forever and that it does not show ads in your inbox or make money by reading your email.
Thunderbird was founded in 2003 and is part of the Mozilla family. It is distributed by MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation, and is funded by user donations. The source code is released under the Mozilla Public License 2.0. Optional paid services exist, but the desktop app itself costs nothing. Version 159.0 detects Microsoft Graph calendars when you create a new account and brings a long list of fixes. It needs macOS 10.15 or later and runs on both Intel and Apple Silicon Macs.
Key Features
Thunderbird brings your mail and your schedule together in one desktop app.
- Multiple accounts: keep all your email accounts in one app.
- Unified inbox: read every account in one inbox, or manage them separately.
- Search and filters: find messages quickly and organize them the way you like.
- Calendar: manage your appointments next to your mail.
- Contacts: keep your address book in the same app.
- Tasks: track what you need to do without a second program.
- No ads: a clean interface with no advertising in your inbox.
- Add-ons: extend the app with third-party add-ons and change how it looks.
What’s New in Version 159.0
Thunderbird 159.0 adds automatic calendar detection and fixes many mail, sync and security problems.
- Microsoft Graph calendars are detected automatically when you create a new account
- CardDAV address book sync no longer stops when the server rejects an invalid sync token
- CardDAV passwords are now saved, which ends repeated login prompts after a restart
- CalDAV calendars no longer stop syncing after a network error until a restart
- MP4 attachments are no longer cut short when you forward a message
- Security fixes and visual improvements
Thunderbird FAQ
Is Thunderbird free?
Yes. The developers say Thunderbird is free forever. It is funded by user donations, and giving is optional.
Is Thunderbird open source?
Yes. Its code is open source and released under the Mozilla Public License 2.0.
Which macOS version does Thunderbird need?
Thunderbird 159.0 needs macOS 10.15 or later.
Does Thunderbird run on Apple Silicon?
Yes. The system requirements list Mac computers with an Intel x86 or Apple Silicon processor, and there is one macOS download for both.
Can I use several email accounts in Thunderbird?
Yes. You can manage your accounts separately or read them together in a unified inbox.
Does Thunderbird include a calendar?
Yes. It manages appointments, contacts and tasks in the same app as your email.
Does Thunderbird show ads?
No. The developers say they do not make money by reading your email and do not put ads in your inbox.
Who makes Thunderbird?
Thunderbird is a project of MZLA Technologies Corporation, a subsidiary of the Mozilla Foundation, with help from a community of contributors.
Can I install Thunderbird with Homebrew?
Yes. Run: brew install --cask thunderbird
Where does the Thunderbird download on thunderbird.FULLMAC.app come from?
The download button leads to the official Thunderbird download page at https://www.thunderbird.net/en-US/thunderbird/all/. thunderbird.FULLMAC.app does not change or repackage the app.
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FULLMAC.app does not host this app. Download buttons lead to the developer’s own pages.