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

Thunderbird for Mac

Thunderbird 17.0.8

  -  35.63 MB  -  Open Source

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 17.0.8.


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!

  • Thunderbird 17.0.8 Screenshots

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    Thunderbird 17.0.8 Screenshot 1
  • Thunderbird 17.0.8 Screenshot 2
  • Thunderbird 17.0.8 Screenshot 3
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  • Thunderbird 17.0.8 Screenshot 5

What's new in this version:

Security Fixes:
- Local Java applets may read contents of local file system
- Same-origin bypass with web workers and XMLHttpRequest
- Wrong principal used for validating URI for some Javascript components
- Further Privilege escalation through Mozilla Updater
- CRMF requests allow for code execution and XSS attacks
- Document URI misrepresentation and masquerading
- Buffer overflow in Mozilla Maintenance Service and Mozilla Updater
- Miscellaneous memory safety hazards (rv:23.0 / rv:17.0.8)