doesnt work on every tab I open Rated 4 out of 5 stars

Since some time now, doesnt work all the time.
I open many youtube tabs, and only a few of thosebuffer instead of playing.
It seems as the addon doesnt load on all the youtube tabs.
I have version 20.0.1

This review is for a previous version of the add-on (0.976.1-signed).