Very good add on. If only we could have seamless integration and synchronisation with Sync one day that would be great.

My only big concern with the module is that when the backup to a tab bookmark folder kicks-in, it messes up my tab groups folder (tab groups appear twice).

Also for some strange reason when I manually rename the folder and move it elsewhere so I keep an archive of my older sessions for safety they always get messed up (most tab go missing) with time.

Though GREAT add-on for Tab addicts, when you adopt it you will never want to go back!