Firefox disables add ons

How do I enable an add on that firefox has disabled? It has shut down my avast addon and my facebook button! I cant stream youtube videos as firefox stops responding! It updates every few days it seems but nothing is getting fixed and other things stop working!
I have used Firefox since 2005 but I am getting fed up with it! I’ll soon throw it over for Chrome or Edge!

Where did you download those add-ons from?

Maybe blocklisted?