Firefox Beta

139.0b9

Mozilla

Dev Onboard

19 reviews

533.3 k downloads

Try new things on Firefox for Android before they're released

Older versions of Firefox Beta

Newer versions of Firefox Beta may sometimes fail to install on older devices. Also, new updates may not be fully compatible with some Android architectures. While the developer fixes the problem, try using an older version of Firefox Beta. Previous versions of Firefox Beta can be found in Uptodown's version history, where the app's available files are stored. Safely download previous versions of Firefox Beta for Android.

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xapk 139.0b9 Android + 5.0 May 18, 2025

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