As of version 79, ad blocker doesn't work on youtube. Opera ad blocker site fixes do not work if unchecked. However, it works if checked.
Why do we need to mark opera ad blocker site fixes in order not to see ads. Why did you have to do this as of version 79?
You haven't disclosed it on any blog.
1- What exactly does Opera Ad Blocker Site Fixes do?
2- What exactly does Opera Ad Blocker Tracker Site Fixes do?
Or are these accebtable ads permissions?