yup yup yup,... it's happened several times in the past but it happens so infrequently, I furgit how I resolved it.
However, I 'membered... it's a setting in FireFox that changes the History settings. I monkey around with it til I get it right. It's the "Browsing & Download History" box that needs to be UNchecked when FF closes. I think it's an issue when FF updates that it somehow gets reset... Anyway, it's all good at the moment (again)