Thank you both for that. I just checked and Chrome wasn't set to be the default browser, although it was in the past. I haven't tried opening a link from an email post yet, but I'm sure that it has solved my problem. I have been using Opera for about 12 years and have no fault with the browser. Not sure why I switched to Chrome, but that's where my bookmarks are these days. I still use Opera on my Android phone.
I should have asked here weeks ago!