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Download Firefox Nightly for Developers 101.0a1 APK
Version: 101.0a1 (2015872973)
Languages: 112
Package: org.mozilla.fenix
Downloads: 109
Target: Android 11 (API 30)
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What's new in Firefox Nightly for Developers 101.0a1
From version 5.2.0:
* Sort Logins
* Streamline Bookmarks/History access
* Improved QR code scanning
* Stability and bugfixes
About Firefox Nightly for Developers 101.0a1
Warning: Nightly is an unstable testing and development platform. By default, Firefox Nightly automatically sends data to Mozilla — and sometimes our partners — to help us handle problems and try ideas. Learn what is shared: www.mozilla.org/en-US/privacy/firefox/#pre-release
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Firefox Nightly gets updated every day and is designed to showcase the more experimental builds of Firefox. The Nightly channel allows users to experience the newest Firefox innovations in an unstable environment and provide feedback on features and performance to help determine what makes the final release.
Found a bug? Report it at: github.com/mozilla-mobile/fenix/issues
Want to know more about the permissions Firefox requests?: mzl.la/Permissions
See our list of supported devices and latest minimum system requirements at: www.mozilla.org/firefox/mobile/platforms/
Mozilla marketing: In order to understand the performance of certain Mozilla marketing campaigns, Firefox sends data, including a Google advertising ID, IP address, timestamp, country, language/locale, operating system, app version, to our third party vendor. Learn more by reading our Privacy Notice here: www.mozilla.org/privacy/firefox/
Take a browse on the wild side. Be among the first to explore future releases.
Firefox Nightly for Developers 101.0a1 variants
This release comes in several variants (we currently have 55). Consult our handy FAQ to see which download is right for you.
Version:121.0a1(2015982692) for Android 5.0+ (Lollipop, API 21)
Uploaded:October 29, 2023 at 6:44AM UTC
File size:97.88 MB
Downloads:353
Version:121.0a1(2015981732) for Android 5.0+ (Lollipop, API 21)
Uploaded:October 24, 2023 at 6:22AM UTC
File size:97.54 MB
Downloads:13
Version:121.0a1(2015981684) for Android 5.0+ (Lollipop, API 21)
Uploaded:October 24, 2023 at 12:07AM UTC
File size:97.73 MB
Downloads:170
Version:120.0a1(2015976357) for Android 5.0+ (Lollipop, API 21)
Uploaded:September 26, 2023 at 6:56AM UTC
File size:96.45 MB
Downloads:11
Version:120.0a1(2015976293) for Android 5.0+ (Lollipop, API 21)
Uploaded:September 26, 2023 at 2:44AM UTC
File size:96.45 MB
Downloads:82
Version:119.0a1(2015971077) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 29, 2023 at 11:45PM UTC
File size:94.84 MB
Downloads:12
Version:119.0a1(2015970901) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 28, 2023 at 11:04PM UTC
File size:94.84 MB
Downloads:57
Version:118.0a1(2015965509) for Android 5.0+ (Lollipop, API 21)
Uploaded:July 31, 2023 at 7:13PM UTC
File size:96.82 MB
Downloads:31
Version:117.0a1(2015965413) for Android 5.0+ (Lollipop, API 21)
Uploaded:July 31, 2023 at 6:46AM UTC
File size:96.51 MB
Downloads:13
Version:117.0a1(2015960325) for Android 5.0+ (Lollipop, API 21)
Uploaded:July 4, 2023 at 6:05PM UTC
File size:96 MB
Downloads:52
Version:146.0a1
Uploaded:November 3, 2025 at 1:29AM UTC
File size:58.28 MB
Downloads:1,304
Version:145.0a1
Uploaded:October 13, 2025 at 8:09AM UTC
File size:58.17 MB
Downloads:1,192
Version:144.0a1
Uploaded:September 14, 2025 at 5:33PM UTC
File size:56.07 MB
Downloads:979
Version:143.0a1
Uploaded:August 18, 2025 at 9:16PM UTC
File size:55.76 MB
Downloads:1,044
Version:142.0a1
Uploaded:July 22, 2025 at 3:31AM UTC
File size:54.73 MB
Downloads:1,063
Version:141.0a1
Uploaded:June 23, 2025 at 5:45PM UTC
File size:54.02 MB
Downloads:899
Version:140.0a1
Uploaded:May 27, 2025 at 10:48PM UTC
File size:53.5 MB
Downloads:1,091
Version:139.0a1
Uploaded:April 28, 2025 at 5:45PM UTC
File size:52.36 MB
Downloads:1,529
Version:138.0a1
Uploaded:April 1, 2025 at 4:08PM UTC
File size:51.65 MB
Downloads:1,257
Version:137.0a1
Uploaded:March 3, 2025 at 3:19PM UTC
File size:51.04 MB
Downloads:996
