Installed the Beta version also for the Samsung Browser. It would be nice if the close all tabs button was not hidden in the more menu section. What shows is Turn on secret mode and New tab. Turn of Secret mode could be replaced with the Close all button.
Thank you for the suggestion! I think that the "Close all" button could also be added between the "Turn on secret mode" and the "New tab" buttons. I've sent the suggestion to Korea, hope they would consider this change useful!