Firefox Nightly

Mozilla Browsers

Works on Arm Native Arm64

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Firefox Nightly runs natively on Windows on Arm.

Arm support since version 128.0a1 (2024-05-15) (64-bit). Source record updated: Mar 2, 2026.

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Publisher: Mozilla
Type: Native Arm64
Version: 128.0a1 (2024-05-15) (64-bit)
Source: Qualcomm · Source
Data updated: Mar 2, 2026

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Evidence and dates

Data updated: Mar 2, 2026
Source record updated: Mar 2, 2026
Device test date: Not recorded

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What this means

Install choice

Firefox Nightly has a native Arm64 build. Prefer the Arm64 installer or Microsoft Store package when it is offered; that is the best path for performance and battery life.

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Next step

Firefox Nightly is one of the compatible Browsers titles. Compare it with other apps in the same category before standardizing a setup.

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Data freshness

Qualcomm · Source · Source record updated: Mar 2, 2026.

Firefox Nightly on Windows on Arm — FAQ

Does Firefox Nightly work on Windows on Arm (Snapdragon X)?

Firefox Nightly runs natively on Windows on Arm. Arm support since version 128.0a1 (2024-05-15) (64-bit). Source record updated: Mar 2, 2026.

Is Firefox Nightly native Arm64 or emulated?

Firefox Nightly ships a native Arm64 build, so it runs at full speed with the best battery efficiency on Arm PCs.

Does Firefox Nightly work on Snapdragon X2 Elite or NVIDIA RTX Spark?

Firefox Nightly is listed as compatible with Windows on Arm, so it is a candidate for Snapdragon X2 Elite and NVIDIA RTX Spark PCs. Still test device-specific pieces such as drivers, plug-ins, GPU acceleration, anti-cheat and background services.