My copy of Safari can't open many websites-why not?
I realize that that issue-Safari's inability to open some or all websites-is probably due to some ill-advised setting I have made in Safari. OK, mea culpa. How do I either figure out which setting is causing the problem, or how do I reset Safari to All Systems Go to start afresh? Thanks for any help you can offer.
By "Can't open" I mean that if I click on a highlighted name or subject, or "Enter" a new subject, what happens is not a new image onscreen, but just a blank grey screen bearing no information whatever.
Mac mini, macOS 13.4