I use an old android tablet for work on the internet. Don't know why, but I feel if something happens I won't lose. It is an android 4.2.2 type device. Firefox browser won't play videos. This is my only complaint. I need this option so I can test website programming code. v68.9.0 is the version I have on the tablet. What is the max version I can put on the tablet without losing performance and gain video play.