This has not changed. It has always been considered sideloading to install an AP...

		arghwhat on Nov 1, 2019 \| parent \| context \| favorite \| on: Firefox to Discontinue Sideloaded Extensions This has not changed. It has always been considered sideloading to install an APK in the UI, as this is entirely identical to using adb. Sideloading only means that you are providing the thing yourself, as opposed to using official channels.