When I try this -- cor-el said You can get the current browser state with this code in the Browser

When I try this --

cor-el said

You can get the current browser state with this code in the Browser Console. You can inspect this code with this tool, assuming that it includes private tabs.

https://www.jeffersonscher.com/res/scrounger.html

ssj = SessionStore.getBrowserState(); prompt("BrowserState: JSON",ssj);

/questions/1229979#answer-1144211 [firefox quantum] (How to) Create a tabs menu with current tabs listed on it?

-- the private window tabs are included. My session isn't frozen, so your mileage may vary.