It’s more to do with workflow for me. If I close the wrong Firefox window I could lose my session with 10k tabs. 😆

I know there’s ways to recover but last time I really considered it I found it more comfortable to have a separate app for PDFs. Do what you feel. ✌️

BTW I don’t work for FoxIt nor has any money changed hands between me and them. It’s just what I wound up using circa 2015.