The APK / Google Play extension link is broken/ doesn't work.

This add-on would be exactly what I was looking for, but Google, prevents this due to policies when logging in with my Google account! There are validation rules, not respected by this app, which Google prescribes! In addition, this app has not been maintained for 5 years! I find it always a pity when add-ons with potential "die" because they are not "Maintained"! With add-ons, (no matter for which browser or platform) this is unfortunately rather the rule, instead of an exception! Very sad! So, I have to give 1 star!

It only works in Chrome....why offer it in Mozilla then?