Firefox Klar: No Fuss Browser Icon

Download Firefox Klar: No Fuss Browser APK 137.0.2 x86 · Android 21+

By Mozilla • Updated September 25, 2026
Communication x86 Native (Java/Kotlin) 105.42 MB
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This is the x86 build of Firefox Klar: No Fuss Browser 137.0.2. 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: 105.4 MB   •   Min Android: 21   •   Target Android: 35   •   Version code: 391041328   •   Framework: Native (Java/Kotlin)   •   Permissions: 27

Screenshots

File Information

Package Nameorg.mozilla.klar
Version Name137.0.2
Version Code391041328
Architecturex86
Min Android VersionAndroid 21 (API 35)
Main Activityorg.mozilla.focus.activity.MainActivity
FrameworkNative (Java/Kotlin)
File Size105.42 MB
Signature (SHA1)5EF5AE4028C98492E2B2ADE34FFF286605D5068F
File Hash (SHA256)2dd7210c11c7d2a86001bae1462e44319ecc26625234d3bb63fb4abf40e838d9

What's New

From version
137.0
:
Fehlerbehebungen und technische Verbesserungen.

App Description

Browse like no one’s watching. The new Firefox Klar automatically blocks a wide range of online trackers — from the moment you launch it to the second you leave it. Easily erase your history, passwords and cookies, so you won’t get followed by things like unwanted ads.

“Private browsing” on most browsers isn’t comprehensive or easy to use. Klar is next-level privacy that’s free, always on and always on your side — because it’s backed by Mozilla, the non-profit that fights for your rights on the Web.

AUTOMATIC PRIVACY

• Blocks a wide range of common Web trackers without any settings to set

• Easily erases your history — no passwords, no cookies, no trackers

BROWSE FASTER

• By removing trackers and ads, Web pages may require less data and load faster

MADE BY MOZILLA

• We believe everyone should have control over their lives online. That’s what we’ve been fighting for since 1998.
Download Firefox Klar: No Fuss Browser APK

Fast, free and safe download.

APK Permissions 27

  • android.permission.ACCESS_COARSE_LOCATION
  • android.permission.ACCESS_FINE_LOCATION
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.CAMERA
  • 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.WAKE_LOCK
  • android.permission.WRITE_EXTERNAL_STORAGE
  • com.android.launcher.permission.INSTALL_SHORTCUT
  • com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY
  • org.mozilla.klar.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
  • org.mozilla.klar.permission.RECEIVE_DOWNLOAD_BROADCAST

Frequently Asked Questions about Firefox Klar: No Fuss Browser APK

This variant is built for 32-bit Intel (older Chromebooks, some Android emulators). 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.