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

Thunderbird (64-bit)

Thunderbird 91.3.1 (64-bit)

  -  53.8 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 91.3.1 (64-bit).


For those interested in downloading the most recent release of Thunderbird (64-bit) 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 91.3.1 (64-bit) Screenshots

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    Thunderbird 91.3.1 (64-bit) Screenshot 1
  • Thunderbird 91.3.1 (64-bit) Screenshot 2