Block Youtube channels, and any videos by keywords. Allows you to block certain Youtube channels, as well as videos match keywords you setup. The extension is 100% FREE. How to use * Right-click on any Youtube video, click "Add block", and setup blocking options in the pop-up window. * Click the extension icon to manage your block list. * Any channel or videos matches your block list will be hide. About Privacy: * All data is stored locally, and the entire matching process runs locally on your computer as well.