What's new in Firefox Nightly for Developers 2.2.0

Thank you for testing Firefox Preview! This release includes new features, enhancements, and bug fixes:
- Decide to open links in a private tab by default
- Choose what type of browsing data to clear on demand or every time you exit the browser
- See “fill link from clipboard" on search engine screen for easier searches
- Enhancements to the user interface
- Fixed the text selection handler bug

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A more recent upload may be available below!

About Firefox Nightly for Developers 2.2.0

Firefox Nightly for Developers 2.2.0 Play Store screenshots (4)

Screenshots from version 162.0a1

Download Firefox Nightly for Developers 2.2.0

This release comes in several variants (we currently have 4). Consult our handy FAQ to see which download is right for you.

Variant
Arch
Version
DPI
2.2.0 APK
12901946
October 21, 2019
armeabi-v7a
Android 5.0+
nodpi
2.2.0 APK
12901947
October 18, 2019
arm64-v8a
Android 5.0+
nodpi
2.2.0 APK
12901948
October 21, 2019
x86
Android 5.0+
nodpi
2.2.0 APK
12901949
October 21, 2019
x86_64
Android 5.0+
nodpi
All Releases

Version:162.0a1

Uploaded:November 9, 2026 at 12:22AM UTC

File size:49.65 MB

Downloads:173

Firefox Nightly for Developers 161.0a1

Version:161.0a1

Uploaded:November 6, 2026 at 11:50PM UTC

File size:68.34 MB

Downloads:1,122

Firefox Nightly for Developers 160.0a1

Version:160.0a1

Uploaded:October 23, 2026 at 2:27AM UTC

File size:47.72 MB

Downloads:724

Firefox Nightly for Developers 159.0a1

Version:159.0a1

Uploaded:October 9, 2026 at 7:05PM UTC

File size:67.85 MB

Downloads:434

Firefox Nightly for Developers 158.0a1

Version:158.0a1

Uploaded:September 24, 2026 at 2:11PM UTC

File size:67.07 MB

Downloads:480

Firefox Nightly for Developers 157.0a1

Version:157.0a1

Uploaded:September 10, 2026 at 4:40AM UTC

File size:48.14 MB

Downloads:456

Firefox Nightly for Developers 156.0a1

Version:156.0a1

Uploaded:August 28, 2026 at 7:42PM UTC

File size:47.84 MB

Downloads:407

Firefox Nightly for Developers 155.0a1

Version:155.0a1

Uploaded:August 13, 2026 at 1:25PM UTC

File size:48.15 MB

Downloads:925

Version:154.0a1

Uploaded:July 20, 2026 at 5:02PM UTC

File size:66.41 MB

Downloads:1,572

Version:153.0a1

Uploaded:June 15, 2026 at 2:12PM UTC

File size:65.26 MB

Downloads:1,516

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