A lightweight userscript to set the default viewing mode for YouTube videos to Theater Mode.
Doesn't use jQuery.
Differences between other userscripts:
- YouTube Cinema Code - Well-coded userscript (my script actually borrows code to disable SPF!). However, script requires jQuery and also does too many things (can be seen as a pro).
- Yays! - This used to be my favorite, but this stopped working for me awhile back. Script is also quite large.