For anybody seeing YT and Twitch ads all of the sudden, it's the "Adblock" addon either conflicting or allowing ads through. Disable "Adblock" and it should go back to normal. Mine did.

5/15/2021 Stopped blocking ads on youtube.

Really good Adblocker.

Raymond Hill thank you looking after uBlock Origin , one the best around This is always the first browser extension I install on FireFox.

Must have extension for every installation of Firefox! Can't browse web without it, unfortunately :(

Read description of the product and that is my review + blocks every ad I ever come across. Great product 10/10

First extension on every browser.