You will have to click on the player to allow buffering of the media files. Once a player is buffered, it can play multiple tracks. There is no need to activate the player on each new track [so you can easily watch playlists for instance].
Features:
1. Stop auto-playing on "/watch?v=" pages
2. Stop auto-playing on "/user/" pages
3. Stop auto-playing on "/channel/" pages
4. Stop auto-playing on embedded YouTube players.
5. Supports YouTube's new Material Design [as of version 0.2.2]
Notes:
1. As of version 0.2.4, this extension is compatible with YouTube's material design
2. As of version 0.2.5, this extension is not working on the old non-material design
3. If you would like the extension to not stop buffering when switching back and forth to the mini-player ["i" keyword on YouTube pages], go to the options page and check "Do not stop the player if the player is already playing" option.
4. This extension is compatible with ad-blocker extensions operating on YouTube pages.
5. This extension ONLY prevents YouTube HTML5/Flash players from auto-buffering [auto-playing] once after a YouTube page is being loaded. This extension does not aim to stop YouTube players from playing next tracks. For this you probably need to install another extension.
--- My other YouTube tools ---