reply to redwolfe_98 You appear to be right, as I DON'T stay logged into any of my favorite forums. I prefer to log in each time. And a retest with cert entry unchecked, a second time it would not let me get into the forums.
EDIT: I'm getting into Comodo forums just fine with the one site cert allowed only by that CA.
So fellow Opera users, based upon what I have observed in several of this topic's posts, the least disruptive but still safe option for us seems to be the one you see in my screenshot--namely checking both boxes for just one certificate. If I have this wrong, someone please post lest I lead others astray. BTW Happy New Year to all. -- Courage is being scared to death but saddling up anyway.