What's new in Firefox Nightly for Developers Nightly 191002 06:00

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 191002 06:00

Firefox Nightly for Developers Nightly 191002 06:00 screenshots (4)

Screenshots from version 154.0a1

Download Firefox Nightly for Developers Nightly 191002 06:00

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

Variant
Arch
Version
DPI
Nightly 191002 06:00 APK
12750608
October 4, 2019
arm64-v8a
Android 5.0+
nodpi
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Version:154.0a1

Uploaded:June 29, 2026 at 1:22AM UTC

File size:66.41 MB

Downloads:514

Version:153.0a1

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

File size:65.26 MB

Downloads:1,448

Version:152.0a1

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

File size:62.75 MB

Downloads:1,316

Version:151.0a1

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

File size:59.06 MB

Downloads:1,584

Version:150.0a1

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

File size:58.14 MB

Downloads:1,362

Firefox Nightly for Developers 149.0a1

Version:149.0a1

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

File size:57.05 MB

Downloads:2,456

Firefox Nightly for Developers 148.0a1

Version:148.0a1

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

File size:56.34 MB

Downloads:1,448

Firefox Nightly for Developers 147.0a1

Version:147.0a1

Uploaded:December 8, 2025 at 1:51PM UTC

File size:55.60 MB

Downloads:1,827

Firefox Nightly for Developers 146.0a1

Version:146.0a1

Uploaded:November 10, 2025 at 2:18PM UTC

File size:58.28 MB

Downloads:2,237

Firefox Nightly for Developers 145.0a1

Version:145.0a1

Uploaded:October 13, 2025 at 8:09AM UTC

File size:58.17 MB

Downloads:1,321

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