Premium
Download Firefox Beta for Testers 140.0b4 APK
Version: 140.0b4 (2016094511)
Languages: 126
Package: org.mozilla.firefox_beta
Downloads: 16
Target: Android 15 (API 35)
120, 160, 213, 240, 320, 480, 640dpi
What's new in Firefox Beta for Testers 140.0b4
From version 87.0.0-beta.2:
Thank you for testing Firefox Beta! We are excited to introduce a major upgrade and a brand new design, and as always we count on your feedback.
Key highlights:
-Bottom nav bar for easier access with option to customize
-Dark & light themes
-Collections to organize your tabs
-Improved support for Progressive Web Apps
More details at support.mozilla.org/kb/firefox-preview-upgrade-faqs
About Firefox Beta for Testers 140.0b4
Firefox Browser for Android is automatically private and incredibly fast. Thousands of online trackers are following you every day, collecting information about where you go online and slowing down your speed. Firefox blocks over 2000 of these trackers by default and there are ad blocker add-ons available if you want to customize your browser even more. With Firefox, you’ll get the security you deserve and the speed you need in a private, mobile browser.
Premium
FAST. PRIVATE. SAFE.
Firefox is faster than ever and gives you a powerful web browser that protects your privacy. Keep what’s personal private with Enhanced Tracking Protection, which automatically blocks over 2000 online trackers from invading your privacy. With Firefox, you don’t have to dig in your privacy settings, everything is set up automatically, but if you like to be in control, you can choose from the many ad blocker add-ons available for the browser. We designed Firefox with smart browsing features that let you take your privacy, passwords, and bookmarks with you safely wherever you go.
ENHANCED TRACKING PROTECTION AND PRIVACY CONTROL
Firefox gives you greater privacy protection while you’re on the web. Block third-party cookies and unwanted ads that follow you around the web with Enhanced Tracking Protection. Search in Private Browsing mode and you won’t be traced or tracked — your private browsing history is automatically erased when you're done.
OWN YOUR LIFE WHEREVER YOU INTERNET
- Add Firefox across your devices for secure, private and seamless browsing.
- Sync your devices to take your favorite bookmarks, saved logins and browsing history wherever you go.
- Send open tabs between mobile and desktop.
- Firefox makes password management easy by remembering your passwords across devices.
- Take your internet life everywhere, knowing that your personal data is safe, never sold for profits.
SEARCH INTELLIGENTLY & GET THERE FASTER
- Firefox anticipates your needs and intuitively provides multiple suggested and previously-searched results across your favorite search engines. Every time.
- Easily access shortcuts to search providers including Wikipedia, Twitter and Amazon.
NEXT LEVEL PRIVACY
- Your privacy has been upgraded. Private Browsing with Tracking Protection blocks parts of Web pages that may track your browsing activity.
INTUITIVE VISUAL TABS
- Open as many tabs as you like without losing track of your open Web pages.
EASY ACCESS TO YOUR TOP SITES
- Spend your time reading your favorites sites instead of looking for them.
QUICK SHARE
- The Firefox web browser makes it easy to share links to web pages or specific items on a page by connecting to your most recently used apps like Facebook, Instagram, Twitter, WhatsApp, Skype and more.
TAKE IT TO THE BIG SCREEN
- Send video and Web content from your smartphone or tablet to any TV equipped with supported streaming capabilities.
BILLIONAIRE FREE FOR 20+ YEARS
The Firefox browser was created in 2004 by Mozilla as a faster, more private browser with more customizable features than web browsers like Internet Explorer. Today, we are still not-for-profit, still not owned by any billionaires and still working to make the internet — and the time you spend on it — better. To learn more about Mozilla, please go to www.mozilla.org.
LEARN MORE
- Terms of Use: www.mozilla.org/about/legal/terms/firefox/
- Privacy Notice: www.mozilla.org/privacy/firefox
- Latest news: blog.mozilla.org
Firefox Beta for Testers 140.0b4 variants
This release may come in several variants. Consult our handy FAQ to see which download is right for you.
Version:143.0b9(2016112751) for Android 5.0+ (Lollipop, API 21)
Uploaded:September 6, 2025 at 4:27PM UTC
File size:331.89 MB
Downloads:273
Version:143.0b8(2016112367) for Android 5.0+ (Lollipop, API 21)
Uploaded:September 4, 2025 at 4:40PM UTC
File size:331.62 MB
Downloads:51
Version:143.0b7(2016111983) for Android 5.0+ (Lollipop, API 21)
Uploaded:September 2, 2025 at 3:56PM UTC
File size:331.58 MB
Downloads:49
Version:143.0b6(2016111407) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 31, 2025 at 6:16PM UTC
File size:334.21 MB
Downloads:41
Version:143.0b5(2016111023) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 28, 2025 at 4:08PM UTC
File size:334.12 MB
Downloads:55
Version:143.0b4(2016110639) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 26, 2025 at 4:08PM UTC
File size:334.05 MB
Downloads:42
Version:143.0b3(2016110063) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 23, 2025 at 3:40PM UTC
File size:334.11 MB
Downloads:46
Version:143.0b2(2016109679) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 22, 2025 at 2:41PM UTC
File size:334.11 MB
Downloads:32
Version:143.0b1(2016109327) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 19, 2025 at 8:58PM UTC
File size:334.25 MB
Downloads:63
Version:142.0b9(2016107375) for Android 5.0+ (Lollipop, API 21)
Uploaded:August 9, 2025 at 6:03PM UTC
File size:327.97 MB
Downloads:100
Version:152.0b8
Uploaded:June 5, 2026 at 5:42PM UTC
File size:64.57 MB
Downloads:33
Version:152.0b7
Uploaded:June 3, 2026 at 3:54PM UTC
File size:64.55 MB
Downloads:29
Version:152.0b6
Uploaded:June 1, 2026 at 3:18PM UTC
File size:64.53 MB
Downloads:36
Version:152.0b5
Uploaded:May 29, 2026 at 6:09PM UTC
File size:64.50 MB
Downloads:26
Version:152.0b4
Uploaded:May 27, 2026 at 3:46PM UTC
File size:64.47 MB
Downloads:33
Version:152.0b3
Uploaded:May 25, 2026 at 5:53PM UTC
File size:64.30 MB
Downloads:40
Version:152.0b2
Uploaded:May 22, 2026 at 3:05PM UTC
File size:64.29 MB
Downloads:50
Version:152.0b1
Uploaded:May 21, 2026 at 4:02PM UTC
File size:64.27 MB
Downloads:25
Version:151.0b10
Uploaded:May 13, 2026 at 3:37PM UTC
File size:62.29 MB
Downloads:56
Version:151.0b9
Uploaded:May 11, 2026 at 3:08PM UTC
File size:62.20 MB
Downloads:30
