Some users have reported success with versions as old as Firefox 42.0.2 or Firefox 55.0.2 for extremely resource-constrained devices. Where to Download the APK
A highly reputable site where you can find Firefox 68.4.2 specifically signed by Mozilla to ensure safety. Firefox Apk Android 4.2.2
This is widely considered the last stable version that maintains broad compatibility with older Android systems like Jelly Bean (API 16 and above). It offers a much more secure and feature-rich experience than the default Android 4.2 browser from 2013. Some users have reported success with versions as
Since the Google Play Store will likely not show you a compatible version for Android 4.2.2, you should use trusted third-party repositories or official archives: Firefox Apk Android 4.2.2