How do i disable last session feature?

I don't need it because i use History in chrome if i want to restore last session. 

i can't understand even why the feature made in.. 

i found this session feature at other simillar ext. but ... why? Chrome's History feature is enough.

annoying so much. i everytime remove it. 

btw thanks to nice ext.

I'm going to donate some $ if few problems solved.