Mozilla previously announced that Firefox 56 would cease to support Adobe Flash on Android. This move aligns with the company's plan, as Adobe Flash is scheduled to be deprecated across all platforms by the end of 2020.
Firefox 56 discontinues support for Adobe Flash on Android devices
Firefox Beta for Android 56 marks the first version requiring Android 4.1 or above, which is why the browser no longer supports Flash. Currently, Firefox Beta doesn't function on Android versions that support Flash anymore.
Firefox 56 lacks support for Adobe Flash on Android devices.
Firefox 56 is currently in the Beta phase, with the official release expected to be completed by the end of this month. Users can download Firefox Beta from the Google Play Store or install the APK file directly onto their devices here: Download Firefox Beta for Android on your device.