Also, if none of the methods helps: Google has completely remove advertising in YouTube videos in Russia. So you don't even need an ad blocker, just a sponsor

Also, if none of the methods helps: Google has completely remove advertising in YouTube videos in Russia. So you don't even need an ad blocker, just a sponsor block. By the way, this (Not an extension, but a login from a Ru ip's) removes ads from all other Google services.