This is a follow up to my previous post.
Since Cookie was taking such a long time, it was running for over 30 minutes, I went to another desktop to try to do some work. When I returned all cookies but the few I'd managed to check as favorites had been removed.
As far as I know I didn't click any "remove" buttons.
However, the behavior was very erratic. While I was waiting the black spinning gear wheel would appear and disappear on the screen. Sometimes I had a mouse pointer but as soon as I moved the mouse the spinning gear wheel returned - which I assume means all the iMac's resources were being consumed.
If I wanted to repeat this set-up process could I go into time machine to get the cookies and put them back on the browser so that I could review the list and make my choices? Are all the cookies in a single folder? Can I just drag them back to Chrome and then re-run Cookie?