Glad you like it. You're correct, Tabli is only intended to help you manage windows and tabs within the current browser session on your current machine. Saved Windows (http://antonycourtney.github.io/tabli/tabli-usage.html#save-...) are stored as bookmark folders so will sync as normal bookmarks and show up when you start Chrome on a different machine. (Currently saved windows are only loaded when Tabli initializes, but that's fixable.) I don't use Chrome on multiple machines simultaneously so hadn't really considered this use case. Thanks for bringing to my attention, will give it some thought.

As someone that almost never closes applications or powers down his computers, I'd also like to see this!

EDIT: Great job, nevertheless!