Premium
Download Firefox Fast & Private Browser 39.0 APK
Target: Android 5.0 (Lollipop, API 21)
nodpi
Firefox Fast & Private Browser notes
www.mozilla.org/en-US/firefox/android/39.0/releasenotes/
What’s New
NEW
Paste Android clipboard content into editable web content
NEW
Support for 'switch' role in ARIA 1.1 (web accessibility)
CHANGED
Removed support for insecure SSLv3 for network communications
CHANGED
Disable use of RC4 except for temporarily whitelisted hosts
CHANGED
Sync now only uses the strongest TLS configuration available on your device. If you self-host Sync, see docs.services.mozilla.com/howtos/configure-tls.html for details.
HTML5
Enable the Fetch API by default
HTML5
List-style-type now accepts a string value
HTML5
Implement
HTML5
Cascading of CSS transitions and animations now matches the current spec
HTML5
Added support for CSS Scroll Snap Points
FIXED
Improve performance for IPv6 fallback to IPv4
FIXED
Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers
FIXED
Various security fixes
What's new in Firefox Fast & Private Browser 39.0
From version 10.0.5:
- Hardware accelerated AV1 video decoding now supported by default with supported hardware or via fallback to software decoding.
- GPU-accelerated Canvas2D is now enabled by default.
- UI improvements to the built-in PDF viewer to make it easier to save PDFs directly.
- Fixed a video playback bug in landscape screen orientation.
- Fixed accessibility bugs where Talkback didn't announce some buttons or text was too small.
About Firefox Fast & Private Browser 39.0
From version 153.0.3:
Premium
The internet. As it should be.
Firefox is a fast, private browser built to protect you by default. It blocks common trackers automatically, helps keep your data secure, and lets you browse with more peace of mind—without extra setup or constant decisions.
Why people choose Firefox:
✔ Enhanced Tracking Protection – Blocks trackers by default to help stop companies from following you across the web.
✔ Private browsing mode – Browse without saving your history, searches, or cookies. Private tabs lock automatically when you step away.
✔ Total Cookie Protection – Keeps tracking cookies limited to the site that created them, making cross-site tracking harder.
✔ Extensions – Add supported extensions like ad blockers and privacy tools to customize how you browse.
✔ Built-in password manager – Generate strong passwords, save them securely, and autofill logins when you need them.
✔ Flexible search options – Choose your default search engine or switch search engines right from the search bar.
✔ Reader Mode – Remove ads and clutter from articles so you can focus on what you're reading.
✔ Sync across devices – Pick up where you left off with synced tabs, bookmarks, and passwords when you sign in to your Mozilla account.
Private by default
Firefox is designed with privacy built in from the moment you start browsing. Enhanced Tracking Protection automatically blocks common background trackers, including social media trackers, crypto miners, and fingerprinters. Total Cookie Protection keeps your activity separated by site, making it harder for companies to build a profile of your browsing habits.
When you want extra privacy, private browsing mode doesn't save your history, searches, or cookies. Private tabs lock automatically when you navigate away and require your fingerprint, PIN, or device security to unlock—helping keep what you're doing private if someone else uses your phone.
Focus on what matters
The web can be distracting. Firefox is designed to help you stay focused without making you manage everything yourself. Reader Mode clears clutter from articles, and picture-in-picture keeps videos visible while you multitask—without pulling focus from what you're doing.
Browse your way
Customize Firefox to fit how you browse. Personalize your home screen with wallpapers and layout options, add extensions like ad blockers and privacy tools, and choose your preferred search engine instead of being pushed into a single ecosystem.
You can move the search bar to the top or bottom of the screen for easier one-handed browsing. Sign in to your Mozilla account to sync tabs, bookmarks, passwords, and browsing history across devices, so switching feels seamless.
Built for people, not profit
Firefox was created in 2004 by Mozilla as a faster, more private, and more customizable alternative to other browsers. Today, Mozilla remains a nonprofit and continues working to make the internet — and the time you spend on it — better.
Learn more about Mozilla: www.mozilla.org
Terms of Use: www.mozilla.org/about/legal/terms/firefox/
Privacy Policy: www.mozilla.org/privacy/firefox
Latest news: blog.mozilla.org
Firefox Fast & Private Browser 39.0 variants
This release comes in several variants (we currently have 2). Consult our handy FAQ to see which download is right for you.
Version:45.0.2(2015411201) for Android 3.0+ (Honeycomb, API 11)
Uploaded:April 12, 2016 at 7:08PM UTC
File size:39.51 MB
Downloads:14,407
Version:45.0(2015404369) for Android 3.0+ (Honeycomb, API 11)
Uploaded:March 8, 2016 at 8:09PM UTC
File size:39.51 MB
Downloads:8,344
Version:44.0.2(2015400201) for Android 3.0+ (Honeycomb, API 11)
Uploaded:February 12, 2016 at 12:48AM UTC
File size:39.33 MB
Downloads:4,775
Version:44.0(2015396233) for Android 3.0+ (Honeycomb, API 11)
Uploaded:January 29, 2016 at 6:36AM UTC
File size:38.06 MB
Downloads:5,302
Version:43.0(2015389129) for Android 3.0+ (Honeycomb, API 11)
Uploaded:December 15, 2015 at 7:50PM UTC
File size:38.38 MB
Downloads:10,832
Version:42.0.2(2015386609) for Android 3.0+ (Honeycomb, API 11)
Uploaded:December 2, 2015 at 9:05PM UTC
File size:38.22 MB
Downloads:4,187
Version:42.0.1(2015384217) for Android 3.0+ (Honeycomb, API 11)
Uploaded:November 20, 2015 at 12:12AM UTC
File size:38.23 MB
Downloads:3,629
Version:42.0(2015380177) for Android 3.0+ (Honeycomb, API 11)
Uploaded:November 4, 2015 at 4:28AM UTC
File size:38.23 MB
Downloads:8,491
Version:41.0.2(2015101425) for Android 3.0+ (Honeycomb, API 11)
Uploaded:October 16, 2015 at 7:27PM UTC
File size:37.65 MB
Downloads:4,161
Version:41.0(2015091726) for Android 3.0+ (Honeycomb, API 11)
Uploaded:September 22, 2015 at 5:22PM UTC
File size:37.65 MB
Downloads:45,704
Version:153.0.3
Uploaded:August 9, 2026 at 4:50PM UTC
File size:123.37 MB
Downloads:2,505
Version:153.0.2
Uploaded:July 31, 2026 at 8:46PM UTC
File size:123.33 MB
Downloads:2,569
Version:153.0.1
Uploaded:July 31, 2026 at 8:46PM UTC
File size:123.27 MB
Downloads:862
Version:153.0
Uploaded:July 23, 2026 at 10:48PM UTC
File size:123.27 MB
Downloads:3,641
Version:152.0.6
Uploaded:July 22, 2026 at 5:04PM UTC
File size:122.54 MB
Downloads:2,987
Version:152.0.5
Uploaded:July 8, 2026 at 11:18AM UTC
File size:122.53 MB
Downloads:3,911
Version:152.0.4
Uploaded:July 1, 2026 at 8:48PM UTC
File size:125.19 MB
Downloads:2,856
Version:152.0.2
Uploaded:June 24, 2026 at 7:27PM UTC
File size:122.47 MB
Downloads:3,927
Version:152.0.1
Uploaded:June 20, 2026 at 8:17AM UTC
File size:122.60 MB
Downloads:2,719
Version:152.0
Uploaded:June 12, 2026 at 3:01AM UTC
File size:125.29 MB
Downloads:156
