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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.
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
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
Version:134.0a1
Uploaded:November 26, 2024 at 9:25AM UTC
File size:49.88 MB
Downloads:1,542
Version:133.0a1
Uploaded:October 28, 2024 at 5:59PM UTC
File size:49.38 MB
Downloads:1,200
