Have tried on a number of occastions to install Flash on both my Mac computers. Both have the latest OS. Keep getting meaasage to "Quit Safari". I don't use Safari, but I double check and Safari is not on. I open it and quit it just to make sure. Still get the same error message. How do I reslove? Concerned that if I uninstall the old version, I will not be able to load any Flash on to my computers.
If you use "MenuTab" (a Facebook menubar app), it will provide a "false open" for Safari. You need to quit it as well.