توضیحات:

YouTool can change the interval between fast forwarding and rewinding of the video on YouTube app!

Introducing the convenient MediaPlayer Youtool running on Youtube
You can use this app for learning language /song/ some videos :)

Rewind (0.5 sec / 1 sec / 2 sec / 3 sec)
Fast forward (0.5 sec / 1 sec / 2 sec / 3 sec)
Play / Stop
Section repeat (one button)