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

Thunderbird for Mac

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Download Thunderbird 31.3.0

Thunderbird 31.3.0

  -  51.01 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 31.3.0.


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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  • Thunderbird 31.3.0 Screenshots

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

What's new in this version:

- Fixes an issue where using LDAP autocomplete could end up with blank entries in the compose addressing list
- Fixes an issue where IRC participants were not removed from the display on leaving a channel.
- Fixes a regression where Thunderbird wasn’t respecting the skip integration option on the default client dialog.

Security fixes:
- Apple CoreGraphics framework on OS X 10.10 logging input data to /tmp directory
- Bad casting from the BasicThebesLayer to BasicContainerLayer
- Buffer overflow while parsing media content
- Use-after-free during HTML5 parsing
- XMLHttpRequest crashes with some input streams
- Miscellaneous memory safety hazards

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