It doesn't work for YouTube, at least on the mobile app. It's a bit hit or miss, for example it doesn't get rid of ads in Duolinguo, but it does stop the 30 sec

It doesn't work for YouTube, at least on the mobile app. It's a bit hit or miss, for example it doesn't get rid of ads in Duolinguo, but it does stop the 30 second ones. On desktop you're better off using a plugin (I run both, but then you get leftover whitespace).