See this thread. My thoughts are in post 16.
I didn't have the certificate error myself, probably because my system did a better job of updating its root certificates than others', but I am glad the subject was brought up.
I've blocked the scripts from Twitter et. al. by adding them to my Restricted Sites list, but it would have been nice not to have had to spend that effort.
Adobe is a professional company, and I visit Adobe's forums looking for a professional experience, not to play.