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Mozilla Releases The First Nightly Firefox Build For Windows 10 On ARM

Firefox Nightly is now available for Windows 10 on ARM, improving the performance of Firefox on ARM-powered computers.

Mozilla released the first pre-release version of Firefox for the ARM64 architecture today, making it the first third-party browser on Windows 10 to natively support Windows 10 on ARM. Today’s release is an early nightly build, which is an incomplete, untested version of the Firefox web browser before its official release.

As such, this is not yet the official release of Firefox for Windows 10 on ARM, but users are welcome to download the latest nightly builds for the ARM64 architecture to test them out and report any bugs they encounter. Firefox Nightly is not intended to be used as a daily browser, according to Mozilla. This is especially true for Firefox Nightly ARM64 builds.

Please be aware that these builds are even more unstable than our standard nightly builds on other platforms: they have not undergone our standard automated testing, bugs are almost certain to appear, etc. In spite of this, I’ve had a positive experience over the past few weeks while manually updating builds generated by automation.

Now that ARM support is being tested in the nightly branch of Firefox, an official release of Firefox for Windows 10 on ARM should not be far off. Chromium and Firefox are two web browsers that we know will be added to Windows 10 on ARM shortly, which should improve their performance on ARM devices.

Will you download the Nightly build of Firefox for Windows 10 on ARM? Please tell us in the comments. Here you can download the Firefox Nightly installer for ARM64.

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