Communication
(428 ratings)
Firefox Preview Nightly is a developmental channel for new Firefox Preview releases. It is intended for advanced users only.

Nightly releases are not tested extensively before being published. They may be unstable; users can expect occasional crashes or data loss.

The Nightly channel allows experienced users and developers to provide feedback on features and performance to help determine what makes the final release.

Please email [email protected] with your comments, or file a bug on : Github.

Firefox Nightly automatically sends feedback to Mozilla. You can read more about telemetry privacy here.
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This release comes in several variants (we currently have 3). Consult our handy FAQ to see which download is right for you.

Variant
Arch
Version
DPI
13211807
November 17, 2019
arm64-v8a
Android 5.0+
nodpi
13211808
November 17, 2019
x86
Android 5.0+
nodpi
13211809
November 17, 2019
x86_64
Android 5.0+
nodpi
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