0.39.3 should at least help narrow down where the issue is actually occurring with DDG. The expectation is that you'll be able to set a random name at least.
I swear I am not being intentionally difficult. The 39.3 setup loads the random name, but doesn't do anything when I select any of the options (in DDG). No button hover visual feedback either.
Opera and Firefox are both working now, though! Progress!
That's a pretty important clue and indicates it has something to do with loading a game, possibly with the "while you were away" summary popup trying to compete for the same space. 0.39.4 coming shortly to handle this