This extension will notify you of the new videos that are posted on the Mindcrack music group channel. It displays the number of new videos since you last opened it as a number on the icon, and informs you when a new video is uploaded (this is configurable in settings).

It also supports the Twitter integration. 

It supports Twitter, Twitch, and YouTube integrations. The video IDs are sent by those services directly to the extension, so you don't need to worry about privacy and security. The extension is safe and secure, so you don't need to worry about your privacy.