noteCast от ADL

This extension creates a file called "videoDetails.txt" in your browser's default download folder with the current video title and id in the following format:
Video Title: {title}
Video ID: {id}

=> Video id refers to the unique id of a YouTube video eg: https://www.youtube.com/watch?v=dQw4w9WgXcQ has the id "dQw4w9WgXcQ"

ps: Works for playlists!