A lightweight userscript to set the default viewing mode for YouTube videos to Theater Mode.
This script also disables SPF in order to set the video to Theater Mode.
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.