I once had this problem and it stopped for one update. Now it started to do it again over and over and over. On my 2011 MBP, every time I try to update flash, it tells me "Please quit Safari" Now obviously my Safari is closed, I even tried force quitting, restart, etc. It still asks me to quit Safari. The only way to bypass this malfunction is to uninstall flash and reinstall them. However, this gets annoying when you have to do this over and over. Does anyone have the same problem and/or solution? It can be either my Mac or OS problem but Im kind of suspecting that its the OS. Correct me if Im wrong. Thanks in advance.