To summarize: 1. Get uBlock Origin and make sure it's updated to the latest version. 2. Click on the gear icon to get to the dashboard, go to "Filter lists", and make sure that "uBlock filters - Quick fixes" is up to date
Repeat those steps any time you get another popup (google and uBlock are having an arms race right now so it might stop working at any moment), and if you have any more problems, read the reddit thread for troubleshooting advice
If updating the filters doesn't work, there was another update on youtube's end.
Don't panic, there will probably be another ublock filter update within the hour.
Just be patient, Youtube and Ublock are in an arms race.
Update: The extension AdNauseam seems to work better than Ublock.
Adnauseam is a bit different as far as ad blockers go. It basically hides ads from you, while also making websites think you clicked every single ad.
To throw ad networks off your trail AdNauseam “clicks” blocked and hidden ads, polluting your data profile and injecting noise into the economic system that drives online surveillance.







