My error. I had an unnoticed browser window open on another virtual desktop. The Flash plug-in prompt was active there, which obviously prevented it to be shown on any other browser window. Sorry for the wrong alert. Marking the bug as invalid.
My error. I had an unnoticed browser window open on another virtual desktop. The Flash plug-in prompt was active there, which obviously prevented it to be shown on any other browser window. Sorry for the wrong alert. Marking the bug as invalid.