Download Firefox Developer Edition 146.0b7

Get the latest features, fast performance, and the development tools!

Updated: November 26, 2025

Size: 154 MB

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154 MB · November 26, 2025

Firefox%20146.0b7.dmg

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146.0b9 November 30, 2025 154 MB 146.0b8 November 28, 2025 154 MB 146.0b7 November 26, 2025 154 MB 146.0b6 November 23, 2025 155 MB 146.0b5 November 21, 2025 155 MB 146.0b4 November 19, 2025 155 MB