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 »

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 140.0.1 July 13, 2025 70.8 MB 139.0.2 July 02, 2025 70.4 MB