Download Thunderbird 143.0 (64-bit)

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

Updated: September 18, 2025

Size: 71.9 MB

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71.9 MB · September 18, 2025

Thunderbird%20Setup%20143.0.exe

Previous versions More »

144.0.1 October 19, 2025 72.3 MB 144.0 October 16, 2025 72.3 MB 143.0.1 September 26, 2025 71.9 MB 143.0 September 18, 2025 71.9 MB 142.0 August 21, 2025 71.5 MB 141.0 July 26, 2025 71.1 MB