What's new in Firefox Nightly for Developers 1.1.0

Thanks for testing Firefox Preview! This update includes the following:
* Usability enhancements to bookmarks, sync, and collections.
* Stability and web compatibility improvements.
* New: you can now open links in other installed apps (e.g. open a link to directions in Google Maps)

Scroll to available downloads
A more recent upload may be available below!

About Firefox Nightly for Developers 1.1.0

Firefox Nightly for Developers 1.1.0 Play Store screenshots (4)

Screenshots from version 158.0a1

Download Firefox Nightly for Developers 1.1.0

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
1.1.0 APK
12042111
July 24, 2019
armeabi-v7a
Android 5.0+
nodpi
1.1.0 APK
12042112
July 24, 2019
arm64-v8a
Android 5.0+
nodpi
1.1.0 APK
12042113
July 24, 2019
x86
Android 5.0+
nodpi
1.1.0 APK
12042114
July 24, 2019
x86_64
Android 5.0+
nodpi
All Releases
Firefox Nightly for Developers 158.0a1

Version:158.0a1

Uploaded:September 16, 2026 at 1:50AM UTC

File size:67.07 MB

Downloads:212

Firefox Nightly for Developers 157.0a1

Version:157.0a1

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

File size:48.14 MB

Downloads:440

Firefox Nightly for Developers 156.0a1

Version:156.0a1

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

File size:47.84 MB

Downloads:383

Firefox Nightly for Developers 155.0a1

Version:155.0a1

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

File size:48.15 MB

Downloads:871

Version:154.0a1

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

File size:66.41 MB

Downloads:1,547

Version:153.0a1

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

File size:65.26 MB

Downloads:1,478

Version:152.0a1

Uploaded:May 18, 2026 at 2:18PM UTC

File size:62.75 MB

Downloads:1,367

Version:151.0a1

Uploaded:April 20, 2026 at 1:22PM UTC

File size:59.06 MB

Downloads:1,601

Version:150.0a1

Uploaded:March 23, 2026 at 11:36AM UTC

File size:58.14 MB

Downloads:1,414

Firefox Nightly for Developers 149.0a1

Version:149.0a1

Uploaded:February 23, 2026 at 1:04PM UTC

File size:57.05 MB

Downloads:2,551

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