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

Thunderbird for Mac
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Thunderbird 3.1

  -  20.64 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 3.1.


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 3.1
Why is this app published on FileHorse? (More info)

  • Thunderbird 3.1 Screenshots

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

    Thunderbird 3.1 Screenshot 1
  • Thunderbird 3.1 Screenshot 2
  • Thunderbird 3.1 Screenshot 3
  • Thunderbird 3.1 Screenshot 4
  • Thunderbird 3.1 Screenshot 5

What's new in this version:

Faster Search Results and Quick Filter Toolbar:
Faster Search Results:
· Message indexing is faster and provides users with faster search results.

Quick Filter Toolbar:
· New Quick Filter Toolbar lets you filter against search terms, tags, starred messages, address book contacts, new emails, and attachments.

User Experience Improvements:
New Migration Assistant:
- The new Migration Assistant gives Thunderbird 2 users a way to choose the new features in Thunderbird 3.1 or to keep their current features and settings.

Saved Files Manager:
- New Saved Files Manager displays all the files you downloaded from your email to your computer.

Mail Account Setup Wizard:
- Hundreds of ISP settings have been added to make setting up Thunderbird easier. The Mail Account Setup Wizard matches against a database of email settings from popular mail providers so that you will only need to provide your name, email, and password to set up new mail accounts.

Performance Improvements:
- Improvements to Stability, Memory, and Password Handling

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