A free email application from Mozilla that's easy to set up and customize

Thunderbird for Mac

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Thunderbird for Mac

  -  154 MB  -  Open Source
Free Download

Security Status

Mozilla Thunderbird for Mac makes e-mailing safer, faster, and easier with such features as intelligent spam filters, a built-in RSS reader, and quick search. The app was designed to prevent viruses and to stop junk mail. The tool includes tabbed e-mail, new search tools and indexing, smart folders, support for Firefox's Personas, a simplified setup wizard, and robust junk protections that include phishing and spam filters. Thunderbird for macOS has a junk mail tools have been updated to stay ahead of spam and features Phishing protection.

What's New in Thunderbird:

Easier to Get Started
Under the Help Menu, you can find the Migration Assistant to help you set up Thunderbird the way you want it. Prior to this feature you had to know your IMAP, SMTP, and SSL/TLS settings. One-click Address Book is a quick and easy way to add people to your address book. The attachment reminder looks for the word attachment and the Activity Manager records all the interactions between the app and your email provider in one place.

Tabs and Search
If you like Firefox's tabbed browsing, you're going to love tabbed email. The search interface in the tool contains filtering and timeline tools to pinpoint the exact email you're looking for. If you think you're going to need an email in the future but want it out of your inbox without deleting it, archive it!

Customize Your Email Experience
With Personas, lightweight "skins" allow you to change the look and feel of Thunder bird for Mac in an instant. Find and install add-ons directly in the app. You no longer need to visit the add-ons Web site - instead simply fire up the Add-ons Manager. Smart Folders help you manage multiple email accounts by combining special folders like your Inbox, Sent, or Archive folder.

Secure and Protect Your Email
The app's popular junk mail tools have been updated to stay ahead of spam. Mail client offers support for user privacy and remote image protection. The tool protects you from email scams which try to trick users into handing over personal and confidential information by indicating when a message is a potential phishing attempt.

Also Available: Download Thunderbird for Windows

Download Thunderbird for Mac Latest Version

  • Thunderbird 133.0 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Thunderbird 133.0 Screenshot 1
  • Thunderbird 133.0 Screenshot 2
  • Thunderbird 133.0 Screenshot 3
  • Thunderbird 133.0 Screenshot 4
  • Thunderbird 133.0 Screenshot 5

What's new in this version:

New:
- Support dark reader for the message pane

Changed:
- Removed obsolete preference extensions.overlayloader.loglevel
- Increased the auto-compaction threshold to reduce frequency of compaction
- Display junk state and allow toggling it from top of message context menu
- Subscribe/Unsubscribe buttons were removed from the IMAP subscribe dialog

Fixed:
- Fixed startup crash related to mailbox parsing
- Folder corruption could cause Thunderbird to freeze and become unusable
- IMAP could crash when reading cached messages
- Enabling "Show Folder Size" on Maildir profile could render Thunderbird unusable
- Folder compaction was not abandoned on shutdown
- Recently deleted messages could become undeleted if message compaction failed
- Message corruption could be propagated when reading mbox
- Messages corrupted by folder compaction were only fixed by user intervention
- Reading a message from past the end of an mbox file did not cause an error
- View -> Folders had duplicate F access keys
- Total message count for favorite folders did not work consistently
- Collapsed NNTP thread incorrectly indicated there were unread messages
- Disabling "Grouped by sort" while group header selected could break message pane
- Switching from "All", "Unread", and "Threads with unread" did not work
- Navigating to next unread message did not wait for all messages to be loaded
- Folder compaction did not clean up on failure
- Add-ons adding columns to the message list could fail and cause display issue
- Could not open attached file in a MIME encrypted message
- Unable to send an unencrypted response to an OpenPGP encrypted message
- Remote content notifications were broken with encrypted messages
- Updating criteria of a saved search resulted in poor search performance
- Drag and drop of OS folders as attachments was not prevented
- Unable to generate QR codes when exporting to mobile in some cases
- Opening the Account Manager produced console error
- Account creation "Setup Documentation" link was broken
- QR codes were not scannable by Android app when using most high-contrast themes
- Operating system reauthentication was missing when exporting QR codes for mobile
- New mail notification was not hidden after reading the new message
- Windows "Notifications & actions" did not display the Thunderbird icon
- "Empty trash on exit" and "Expunge inbox on exit" did not always work
- Message could disappear after moving from IMAP folder followed by Undo and Redo
- Global database did not work immediately after update to Thunderbird 133
- Drop-downs may not work in some places
- Primary password prompt cancellation during mobile export was confusing
- Calendar display times could be incorrect
- Selected calendar day did not move forward at midnight
- Could not drag all-day events from one day to another in week view
- Calendar could show mixed languages in month display
- Calendar displayed incorrect first day of the week
- Visual and UX improvements
- Security fixes

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