To get rid of the annoying YouTube message (ad blocker are not allowed on Youtube) use this custom filter in uBlock extension
- Open uBlock extension dashboard
- Open my filters tab
- Copy & Paste this code into my filter
- Apply changes and close all tabs
via: enderman
That's how they're able to pull this anti-adblock nonsense, in fact. If they hadn't killed off all competitors, everyone would just be going to them.