Very Excellent!

I use Firefox primarily because I can twitter in seperate containers. so I was initially looking for a session manager that would restore container tabs in one window and regular tabs in another. This handled both with complete ease. It even restores windows in their precise screen location.
I encountered an a slight glitch with the popup not being entirely visible, but all I had to do was go full screen and it showed up. Then I went to the options and changed the popup to open in a separate window, and everything is perfect.

Thank you, thank you, thank you! I will definitely be making a contribution.