Download Firefox 139.0.1 (64-bit)

One of the World`s Most Popular Web Browsers for Windows

Updated: May 31, 2025

Size: 69.2 MB

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69.2 MB · May 31, 2025

Firefox Setup 139.0.1.exe

Previous versions More »

148.0.2 March 11, 2026 83.6 MB 148.0 February 25, 2026 83.6 MB 147.0.4 February 18, 2026 82.2 MB 147.0.3 February 05, 2026 82.3 MB 147.0.2 January 28, 2026 82.2 MB 147.0.1 January 18, 2026 82.3 MB