Scroll to available downloads
A more recent upload may be available below!

About Firefox Nightly for Developers 1.0.1920

Welcome to a sneak peek of our new mobile browser.

We know a little something about making game-changing web browsers. That’s why we’re excited to give you early access to Firefox Preview, a sneak peek of our new mobile browser. Built on GeckoView, this is our fastest Android browser yet. We’ve turned up the volume on everything you expect from Firefox: ease of use, safety, choice, control and privacy.

Download Firefox Nightly for Developers 1.0.1920

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
1.0.1920 APK
11391807
May 19, 2019
armeabi-v7a
Android 5.0+
nodpi
1.0.1920 APK
11391808
May 19, 2019
arm64-v8a
Android 5.0+
nodpi
1.0.1920 APK
11391809
May 19, 2019
x86
Android 5.0+
nodpi
All Releases

Version:142.0a1

Uploaded:July 17, 2025 at 2:48AM UTC

File size:54.73 MB

Downloads:718

Version:141.0a1

Uploaded:June 23, 2025 at 5:45PM UTC

File size:54.02 MB

Downloads:858

Version:140.0a1

Uploaded:May 27, 2025 at 10:48PM UTC

File size:53.5 MB

Downloads:1,050

Version:139.0a1

Uploaded:April 28, 2025 at 5:45PM UTC

File size:52.36 MB

Downloads:1,486

Version:138.0a1

Uploaded:April 1, 2025 at 4:08PM UTC

File size:51.65 MB

Downloads:1,218

Version:137.0a1

Uploaded:March 3, 2025 at 3:19PM UTC

File size:51.04 MB

Downloads:974

Firefox Nightly for Developers 136.0a1

Version:136.0a1

Uploaded:February 4, 2025 at 6:57AM UTC

File size:51.58 MB

Downloads:955

Version:135.0a1

Uploaded:January 6, 2025 at 7:11AM UTC

File size:50.43 MB

Downloads:1,370

Firefox Nightly for Developers 134.0a1

Version:134.0a1

Uploaded:November 26, 2024 at 9:25AM UTC

File size:49.88 MB

Downloads:1,542

Firefox Nightly for Developers 133.0a1

Version:133.0a1

Uploaded:October 28, 2024 at 5:59PM UTC

File size:49.38 MB

Downloads:1,200

Comments