Firefox Fast & Private Browser Icon

Download Firefox Fast & Private Browser APK 138.0 x86_64 · Android 21+

By Mozilla • Updated September 17, 2026
Communication x86_64 Native (Java/Kotlin) 112.62 MB
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This is the x86_64 build of Firefox Fast & Private Browser 138.0. Intel-architecture builds are useful for Android emulators (BlueStacks, NoxPlayer, Android Studio AVD), Chromebooks running ARC, and the small number of Intel-CPU Android phones. Most physical Android phones should download the ARM variant instead.

File size: 112.6 MB   •   Min Android: 21   •   Target Android: 35   •   Version code: 2016086494   •   Framework: Native (Java/Kotlin)   •   Permissions: 33

Screenshots

File Information

Package Nameorg.mozilla.firefox
Version Name138.0
Version Code2016086494
Architecturex86_64
Min Android VersionAndroid 21 (API 35)
Main Activityorg.mozilla.firefox.App
FrameworkNative (Java/Kotlin)
File Size112.62 MB
Signature (SHA1)920F4876A6A57B4A6A2F4CCAF65F7D29CE26FF2C
File Hash (SHA256)f0a6eddd53953157ead0d5c61aa2231ec17e88d23672c55a9c86fdd317702096

What's New

From version
137.0
:
- The Web Compatibility Reporting Tool is now available for reporting site issues. If a website isn’t working in Firefox but functions correctly in another browser, you can report it by opening the menu via the three-dot button and selecting “Report broken site”.
- 136.0.1: Fixed media continuing to play after closing a tab.
- 136.0.1: Fixed a problem where cookies created by websites that use CookieStore could exceed the maximum size. This could cause login and other state-related issues.

App Description

Choose the browser that prioritizes people over profits.

When you choose Firefox, you protect your data while supporting the non-profit Mozilla Foundation, whose mission is to build a better internet that's safe and accessible for everyone.

What Firefox offers:

✔ PRIVACY-FOCUSED BROWSING

• Automatic tracker blocking — By default, Firefox blocks trackers and scripts such as social media trackers, cross-site cookie trackers, crypto-miners and fingerprinters.

• Enhanced tracking protection — Choose the “strict” setting and get even more privacy protections.

• Private browsing mode — When you close private mode, your browsing history is automatically erased from your device.

✔ EASY-TO-USE TABS

• Find what you want quickly — create as many tabs as you like without losing track.

• See your open tabs as thumbnails or a list view.

• See tabs from your phone on your desktop and vice versa — or choose to keep them separate.

✔ PASSWORD MANAGEMENT

• Log into sites easily — Firefox remembers your passwords across devices.

• Firefox suggests passwords for new log-ins and stores them securely.

✔ LIGHTNING-FAST PAGE LOADS

• Enhanced Tracking Protection automatically blocks online trackers from following you around the web and slowing down your pages.

✔ TAILORED SEARCH OPTIONS

• Get suggestions and previously searched results in the search bar to quickly access the sites you visit most.

• Move the search bar location from the top to the bottom of the screen, making it easier to use with one hand.

• Use the Firefox search widget to search the web directly from your device’s home screen.

• See the recent searches you’ve done on other devices for seamless searching across mobile, desktop and more.

✔ CUSTOMIZE YOUR FIREFOX EXPERIENCE

• Get helpful add-on extensions, including ways to block ads, block certain web pages, turbo-charge privacy settings and more.

✔ FIREFOX HOME SCREEN

• Access your recent bookmarks and top sites and see popular articles from across the internet, recommended by Pocket, which is part of Mozilla.

✔ SAVE BATTERY WITH DARK MODE

Switch to dark mode at any time, reducing eye strain and prolonging your battery power.

✔ WATCH VIDEOS WHILE YOU MULTITASK

• Pop videos out of their web pages or players and pin them to the top of your phone’s screen to watch while you surf the web and do other things.

✔ SHARE ANYTHING IN A FEW TAPS

• Share links to web pages or specific items on a page with easy, quick access to your most recently used apps.

LEARN MORE ABOUT FIREFOX WEB BROWSER

Read about Firefox permissions:

mzl.la/Permissions

- Stay in the know:

blog.mozilla.org

ABOUT MOZILLA

Mozilla exists to build the internet as a public resource accessible to all because we believe open and free is better than closed and controlled. We build products like Firefox to promote choice and transparency and give people more control over their lives online. Learn more at

www.mozilla.org

. Privacy policy:

www.mozilla.org/legal/privacy/firefox.html
Download Firefox Fast & Private Browser APK

Fast, free and safe download.

APK Permissions 33

  • android.permission.ACCESS_COARSE_LOCATION
  • android.permission.ACCESS_FINE_LOCATION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.CAMERA
  • android.permission.CREDENTIAL_MANAGER_QUERY_CANDIDATE_CREDENTIALS
  • android.permission.CREDENTIAL_MANAGER_SET_ORIGIN
  • android.permission.DOWNLOAD_WITHOUT_NOTIFICATION
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_DATA_SYNC
  • android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
  • android.permission.FOREGROUND_SERVICE_SPECIAL_USE
  • android.permission.HIGH_SAMPLING_RATE_SENSORS
  • android.permission.INTERNET
  • android.permission.MODIFY_AUDIO_SETTINGS
  • android.permission.POST_NOTIFICATIONS
  • android.permission.QUERY_ALL_PACKAGES
  • android.permission.READ_EXTERNAL_STORAGE
  • android.permission.READ_MEDIA_AUDIO
  • android.permission.READ_MEDIA_VISUAL_USER_SELECTED
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.RECORD_AUDIO
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_FINGERPRINT
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • android.permission.WRITE_EXTERNAL_STORAGE
  • com.adjust.preinstall.READ_PERMISSION
  • com.android.launcher.permission.INSTALL_SHORTCUT
  • com.google.android.c2dm.permission.RECEIVE
  • com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
  • com.google.android.gms.permission.AD_ID
  • org.mozilla.firefox.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • org.mozilla.firefox.permission.RECEIVE_DOWNLOAD_BROADCAST
APK Verified

The cryptographic signature guarantees that the file is safe to install and was not tampered with in any way.

Other Variants

This release has multiple variants (e.g. diff architectures).

arm64-v8a arm64-v8a, armeabi-v7a, x86, x86_64 armeabi-v7a Universal x86

Frequently Asked Questions about Firefox Fast & Private Browser APK

This variant is built for 64-bit Intel (Android emulators, Chromebooks). If your device's CPU matches, this is the smallest, fastest version to install.

Yes — the APK's signature has been cryptographically verified against the publisher's signing key. The SHA-256 hash is shown in the File Information panel so you can independently confirm the file matches the original release.

Android 21 (API level 35) or newer. Older devices will refuse the install.

Install a free app like 'CPU-Z' or 'Droid Hardware Info' from the Play Store and look at the ABI / Instruction Set row. Most phones made after 2017 are arm64-v8a; if in doubt, download the universal variant.

All variants are functionally identical — same features, same version. They differ only in which CPU architectures the native code is compiled for, and (sometimes) which screen densities the included graphics target. Pick the one that matches your device for the smallest install size, or pick 'Universal' if you're unsure.