Browse the web with Mozilla Firefox for Android.
Before you download
Choose the Android stable edition rather than a desktop installer or a different testing channel. Review the architecture and current requirements before installing.
Get started
Review tracking protection and decide whether to synchronize your browsing data. A store installation can manage future updates through that store.
Keep your data when updating
Check your bookmarks, passwords and sync settings. Confirm important data on another device or in a backup before removing the existing browser.
Use the original distribution channel where possible. Compare the package and edition before replacing an installation. A different signature or an older version can prevent an update; do not uninstall or clear data as the first troubleshooting step.
If installation or playback does not work
Check Android requirements, the installed release channel and package signature if an update is rejected. Do not erase the profile simply to try a different file.
Check the Android requirements and architecture shown above. Open the downloaded APK on your own Android device, read its notices and keep system protections enabled. Review any temporary browser installation permission afterward.
Firefox FAQs
ARM64 or ARM32?
Choose the architecture supported by the installed Android system. If you do not know it, consult the manufacturer or use the publisher’s store channel.
Can Beta or Nightly update stable Firefox?
Do not treat release channels as interchangeable. Check the edition already installed and preserve your data before changing channels.
How do I choose the correct APK?
Check the minimum Android version and the architecture supported by the installed operating system. ARM64 means arm64-v8a; ARM32 means armeabi-v7a. A 64-bit chip does not prove that the installed system supports ARM64. Use the file picker, or the publisher’s store if available.
Can I update an installation from another source?
Check its package, edition and source first. A different signing key can prevent an update. Back up important data and consult the publisher before switching channels; do not uninstall or erase data as the first troubleshooting step.
Sources and review scope
The English guide was prepared on 22 October 2026 from GOAPK’s current Spanish guidance. File-check timestamps and the scope of any complete-file review are shown separately above. Translation does not constitute another file, security or device-installation test.