Firefox Nightly for Developers 121.0a1 Icon

Firefox Nightly for Developers

Mozilla Productivity
4.5
3.2K Ratings
2M+
Downloads
121.0a1
version
Nov 16, 2023
release date
186.3 MB
file size
Free
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About Firefox Nightly for Developers Android App

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: https://www.mozilla.org/en-US/privacy/firefox/#pre-release

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: https://github.com/mozilla-mobile/fenix/issues

Want to know more about the permissions Firefox requests?: https://mzl.la/Permissions

See our list of supported devices and latest minimum system requirements at: https://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: https://www.mozilla.org/privacy/firefox/

Take a browse on the wild side. Be among the first to explore future releases.

Other Information:

Package Name:
Requires Android:
Android 5.0+
Other Sources:

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This release of Firefox Nightly for Developers Android App available in 56 variants. Please select the variant to download. Please read our FAQ to find out which variant is suitable for your Android device based on Screen DPI and Processor Architecture.

Variant
2015986151
(Nov 16, 2023)
Architecture
universal
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015986063
(Nov 16, 2023)
Architecture
universal
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015985959
(Nov 15, 2023)
Architecture
universal
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015985863
(Nov 14, 2023)
Architecture
universal
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015985383
(Nov 12, 2023)
Architecture
universal
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015983079
(Oct 31, 2023)
Architecture
universal
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015986919
(Nov 20, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015986727
(Nov 19, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015986535
(Nov 18, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015986439
(Nov 18, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015986247
(Nov 17, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015986063
(Nov 15, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015985863
(Nov 14, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015985671
(Nov 14, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015985575
(Nov 13, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015985479
(Nov 12, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015985287
(Nov 12, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015985191
(Nov 11, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015985095
(Nov 11, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015984999
(Nov 10, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015984743
(Nov 09, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015984519
(Nov 08, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015983559
(Nov 02, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015983271
(Nov 01, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015983183
(Nov 01, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982983
(Oct 30, 2023)
Architecture
arm64-v8a armeabi armeabi-v7a mips mips64 x86 x86_64
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982112
(Oct 26, 2023)
Architecture
armeabi-v7a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015986823
(Nov 19, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015986631
(Nov 18, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015986343
(Nov 17, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015986063
(Nov 15, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015985767
(Nov 14, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015985479
(Nov 12, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015985287
(Nov 12, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015985095
(Nov 11, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015984999
(Nov 10, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015984743
(Nov 10, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015984519
(Nov 08, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015984039
(Nov 05, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015983559
(Nov 02, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015983183
(Nov 01, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015982983
(Oct 31, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
160-640dpi
Variant
2015982690
(Oct 29, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982594
(Oct 28, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982498
(Oct 28, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982402
(Oct 28, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982306
(Oct 27, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982210
(Oct 27, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982114
(Oct 26, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982018
(Oct 25, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015981922
(Oct 25, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015981826
(Oct 24, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015981730
(Oct 24, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015981682
(Oct 24, 2023)
Architecture
arm64-v8a
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015982500
(Oct 28, 2023)
Architecture
x86
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
Variant
2015981732
(Oct 24, 2023)
Architecture
x86
Minimum OS
Android 5.0+
Screen DPI
120-640dpi
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