Firefox Developer Edition

139.0b8

Mozilla

Dev Onboard

1 reviews

11.2 k downloads

A version of the popular browser especially for developers

Older versions of Firefox Developer Edition

If the latest version of Firefox Developer Edition does not work properly on your device, you can download an older from Uptodown. Sometimes, the latest version may contain bugs or display compatibility issues with certain devices, so accessing the history of previous versions may solve your problems. At Uptodown, we provide previous versions of Firefox Developer Edition compatible with various Mac architectures to ensure that you find the ideal one for your device. This history allows you to get the version you need quickly and safely.

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dmg 139.0b8 May 16, 2025

dmg 139.0b5 May 9, 2025

dmg 138.0b9 Apr 23, 2025

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dmg 136.0b9 Feb 26, 2025

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dmg 135.0b9 Jan 29, 2025

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dmg 134.0b8 Dec 11, 2024

dmg 134.0b4 Dec 6, 2024