waterfox sandbox exceptions

Is there a way to add waterfox to the Web Browser Data Folders file group in the sandbox exceptions settings as only dragon is in there right now ?

I’m unsure which waterfox folders to add
I don’t want to create leaks


EDIT - ok I have looked at what sandboxie allows to “touch” the real system to allow bookmarks and history, should I allow the same entries ? what about downloads ?
I use waterfox for general web use and dragon purely for secure ie banking use I want to keep them seperate for obvious reasons
can someone PLS help

EDIT - ok apologies downloads are added to sandbox exceptions web browser groups, I missed that initially