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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:140.0a1
Uploaded:May 2, 2025 at 2:36PM UTC
File size:53.5 MB
Downloads:248
Version:139.0a1
Uploaded:April 28, 2025 at 5:45PM UTC
File size:52.36 MB
Downloads:1,345
Version:138.0a1
Uploaded:April 1, 2025 at 4:08PM UTC
File size:51.65 MB
Downloads:1,176
Version:137.0a1
Uploaded:March 3, 2025 at 3:19PM UTC
File size:51.04 MB
Downloads:956
Version:136.0a1
Uploaded:February 4, 2025 at 6:57AM UTC
File size:51.58 MB
Downloads:933
Version:135.0a1
Uploaded:January 6, 2025 at 7:11AM UTC
File size:50.43 MB
Downloads:1,339
Version:134.0a1
Uploaded:November 26, 2024 at 9:25AM UTC
File size:49.88 MB
Downloads:1,531
Version:133.0a1
Uploaded:October 28, 2024 at 5:59PM UTC
File size:49.38 MB
Downloads:1,185
Version:132.0a1
Uploaded:September 30, 2024 at 4:26AM UTC
File size:48.59 MB
Downloads:979
Version:131.0a1
Uploaded:September 3, 2024 at 7:09AM UTC
File size:100.98 MB
Downloads:1,850
