been meaning to mention this for awhile..
start orion aka open new window1,
go to any website domain you like,
open new window2 (can be normal or private),
go to a different website domain you like,
close window2
observe that the menu still lists the url for window2 even although you are actually at window1 alone by now
navigating to another page on the first website (or just simply refresh it) correctly updates the menu, so does going to a new tab in windows1 then back to the original tab - but still I thought I'll mention this nevertheless?