What's new in Firefox Fast & Private Browser 66.0.5

We’re working to make Firefox for Android better with each new release. Read the release notes to learn about any new features, bug fixes, and performance improvements at www.mozilla.org/en-US/firefox/android/notes/.

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About Firefox Fast & Private Browser 66.0.5

Firefox Fast & Private Browser 66.0.5 screenshots (8)

Screenshots from version 146.0.1

Download Firefox Fast & Private Browser 66.0.5

This release comes in several variants (we currently have 2). Consult our handy FAQ to see which download is right for you.

Variant
Arch
Version
DPI
66.0.5 APK
2015627081
May 8, 2019
armeabi-v7a
Android 4.1+
nodpi
66.0.5 APK
2015627083
May 8, 2019
arm64-v8a
Android 5.0+
nodpi
All Releases
Firefox Fast & Private Browser 146.0.1

Version:146.0.1

Uploaded:December 20, 2025 at 7:53AM UTC

File size:54.51 MB

Downloads:3,405

Firefox Fast & Private Browser 146.0

Version:146.0

Uploaded:December 13, 2025 at 4:54PM UTC

File size:113.13 MB

Downloads:4,671

Firefox Fast & Private Browser 145.0.2

Version:145.0.2

Uploaded:November 27, 2025 at 5:45PM UTC

File size:115.74 MB

Downloads:3,483

Firefox Fast & Private Browser 145.0.1

Version:145.0.1

Uploaded:November 23, 2025 at 6:48AM UTC

File size:115.75 MB

Downloads:2,080

Firefox Fast & Private Browser 145.0

Version:145.0

Uploaded:November 14, 2025 at 9:25PM UTC

File size:57.1 MB

Downloads:3,690

Firefox Fast & Private Browser 144.0.2

Version:144.0.2

Uploaded:October 31, 2025 at 4:02PM UTC

File size:114.94 MB

Downloads:2,807

Firefox Fast & Private Browser 144.0.1

Version:144.0.1

Uploaded:October 28, 2025 at 4:35PM UTC

File size:114.88 MB

Downloads:1,316

Firefox Fast & Private Browser 144.0

Version:144.0

Uploaded:October 21, 2025 at 6:59PM UTC

File size:112.13 MB

Downloads:5,542

Version:143.0.4

Uploaded:October 5, 2025 at 4:34AM UTC

File size:109.15 MB

Downloads:9,880

Version:143.0.3

Uploaded:October 2, 2025 at 8:47AM UTC

File size:54.78 MB

Downloads:812

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