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Download Firefox Nightly for Developers Nightly 201217 20:15 APK
Version: Nightly 201217 20:15 (2015781989)
Languages: 99
Package: org.mozilla.fenix
Downloads: 20
Target: Android 10 (Q, API 29)
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What's new in Firefox Nightly for Developers Nightly 201217 20:15
From version 5.2.0:
* Sort Logins
* Streamline Bookmarks/History access
* Improved QR code scanning
* Stability and bugfixes
About Firefox Nightly for Developers Nightly 201217 20:15
Please note that this app used to be titled Firefox Preview. It has now been transitioned to Firefox Nightly.
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Firefox Nightly is a developmental channel for new Mozilla Firefox releases.
Firefox Nightly 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
Firefox Nightly automatically sends feedback to Mozilla: www.mozilla.org/privacy/firefox/#telemetry
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/
Firefox Nightly for Developers Nightly 201217 20:15 screenshots (4)
Screenshots from version 155.0a1
Firefox Nightly for Developers Nightly 201217 20:15 variants
This release comes in several variants (we currently have 3). 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:613
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:24
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:211
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:20
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:94
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:14
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:61
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:33
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:96.00 MB
Downloads:56
Version:155.0a1
Uploaded:August 13, 2026 at 1:25PM UTC
File size:48.15 MB
Downloads:778
Version:154.0a1
Uploaded:July 20, 2026 at 5:02PM UTC
File size:66.41 MB
Downloads:1,526
Version:153.0a1
Uploaded:June 15, 2026 at 2:12PM UTC
File size:65.26 MB
Downloads:1,469
Version:152.0a1
Uploaded:May 18, 2026 at 2:18PM UTC
File size:62.75 MB
Downloads:1,333
Version:151.0a1
Uploaded:April 20, 2026 at 1:22PM UTC
File size:59.06 MB
Downloads:1,598
Version:150.0a1
Uploaded:March 23, 2026 at 11:36AM UTC
File size:58.14 MB
Downloads:1,372
Version:149.0a1
Uploaded:February 23, 2026 at 1:04PM UTC
File size:57.05 MB
Downloads:2,472
Version:148.0a1
Uploaded:January 12, 2026 at 2:44PM UTC
File size:56.34 MB
Downloads:1,482
Version:147.0a1
Uploaded:December 8, 2025 at 1:51PM UTC
File size:55.60 MB
Downloads:1,844
Version:146.0a1
Uploaded:November 10, 2025 at 2:18PM UTC
File size:58.28 MB
Downloads:2,248
