What's new in Firefox Nightly for Developers Nightly 191006 18:01

Thank you for testing Firefox Preview! This release includes a number of exciting new features to help you browse the web faster while protecting your privacy. You can now launch private browsing right from your home screen, open links in a private tab by default, and control media playback. See here for more: support.mozilla.org/en-US/kb/whats-new-firefox-preview?as=u&utm_source=inproduct

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About Firefox Nightly for Developers Nightly 191006 18:01

Firefox Nightly for Developers Nightly 191006 18:01 Play Store screenshots (4)

Screenshots from version 157.0a1

Download Firefox Nightly for Developers Nightly 191006 18:01

This release may come in several variants. Consult our handy FAQ to see which download is right for you.

Variant
Arch
Version
DPI
Nightly 191006 18:01 APK
12791805
October 6, 2019
arm64-v8a
Android 5.0+
nodpi
All Releases

Version:157.0a1

Uploaded:September 9, 2026 at 2:21AM UTC

File size:48.14 MB

Downloads:410

Firefox Nightly for Developers 156.0a1

Version:156.0a1

Uploaded:August 28, 2026 at 7:42PM UTC

File size:47.84 MB

Downloads:377

Firefox Nightly for Developers 155.0a1

Version:155.0a1

Uploaded:August 13, 2026 at 1:25PM UTC

File size:48.15 MB

Downloads:852

Version:154.0a1

Uploaded:July 20, 2026 at 5:02PM UTC

File size:66.41 MB

Downloads:1,547

Version:153.0a1

Uploaded:June 15, 2026 at 2:12PM UTC

File size:65.26 MB

Downloads:1,477

Version:152.0a1

Uploaded:May 18, 2026 at 2:18PM UTC

File size:62.75 MB

Downloads:1,361

Version:151.0a1

Uploaded:April 20, 2026 at 1:22PM UTC

File size:59.06 MB

Downloads:1,601

Version:150.0a1

Uploaded:March 23, 2026 at 11:36AM UTC

File size:58.14 MB

Downloads:1,410

Firefox Nightly for Developers 149.0a1

Version:149.0a1

Uploaded:February 23, 2026 at 1:04PM UTC

File size:57.05 MB

Downloads:2,539

Firefox Nightly for Developers 148.0a1

Version:148.0a1

Uploaded:January 12, 2026 at 2:44PM UTC

File size:56.34 MB

Downloads:1,501

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