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

Thunderbird for Mac
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Thunderbird 147.0

  -  138 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Thunderbird 147.0.


For those interested in downloading the most recent release of Thunderbird for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download Thunderbird 147.0
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  • Thunderbird 147.0 Screenshots

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    Thunderbird 147.0 Screenshot 1
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  • Thunderbird 147.0 Screenshot 5

What's new in this version:

New:
- Add "Show Full Path" folder pane option for compact view modes
- Add `mail.useLocalizedFolderNames' to toggle special folder name localization

Changed:
- Special folders are now localized based on a restricted set of names

Fixed:
- Selected status and priority was not displayed in search widgets
- Compacting multiple folders failed and did not compact
- Resetting manual folder sorting did not work for sub folders
- Unified archive subfolders could show wrong names and no messages
- Folders with deep hierarchy and long folder names could fail to display
- Moving saved search/virtual folder under IMAP could fail
- "Open and Show" for OpenPGP-signed message (.eml) did not work
- "Search Messages" search did not finish due to unparsable local folders
- Compose command line flag no longer worked correctly
- Search for "Attachment" in Settings menu did not find "Files and Attachments"
- Account Hub did not show error message on failure when creating OAuth2 EWS account
- Thunderbird could crash during exchange address account setup
- Japanese locale users could not create message filters
- Moving virtual folder within maildir based IMAP or local folder could fail
- Thunderbird could crash when marking all messages as read
- Startup could be slow with large number of folders not using subscriptions
- EWS message send that required a password errored instead of prompting
- EWS HTTP 500 backoff errors were not handled gracefully
- SMTP sending could hang when when multiple messages queued for sending
- Thunderbird could crash when emptying EWS trash
- Broken feed icon could prevent updating of feeds
- Calendar did not alert user for connection issues
- Creation of tasks with Start or Due date was not possible
- Visual and UX improvements
- Security fixes

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