What's new in Firefox Nightly for Developers 3.0.0

Thank you for testing Firefox Preview. In this release, we fixed a few major user interface and usability bugs. Enjoy browsing!

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About Firefox Nightly for Developers 3.0.0

Download Firefox Nightly for Developers 3.0.0

This release comes in several variants (we currently have 8). Consult our handy FAQ to see which download is right for you.

Variant
Arch
Version
DPI
3.0.0 APK
13372012
December 4, 2019
armeabi-v7a
Android 5.0+
nodpi
3.0.0 APK
13372013
December 4, 2019
arm64-v8a
Android 5.0+
nodpi
3.0.0 APK
13372014
December 4, 2019
x86
Android 5.0+
nodpi
3.0.0 APK
13372015
December 4, 2019
x86_64
Android 5.0+
nodpi
3.0.0 APK
13431955
December 13, 2019
armeabi-v7a
Android 5.0+
nodpi
3.0.0 APK
13431956
December 13, 2019
arm64-v8a
Android 5.0+
nodpi
3.0.0 APK
13431957
December 13, 2019
x86
Android 5.0+
nodpi
3.0.0 APK
13431958
December 13, 2019
x86_64
Android 5.0+
nodpi
All Releases

Version:142.0a1

Uploaded:July 14, 2025 at 4:47PM UTC

File size:54.73 MB

Downloads:636

Version:141.0a1

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

File size:54.02 MB

Downloads:853

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:952

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:1,199

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