Suddenly all web sites using Flash Player no longer work showing the error message that I will have to install the latest Flash Player. I followed instructions in help and I used the uninstaller and resinstalled but it still doesn't work on any web site. It is version 220.127.116.11 for Mac using Safari. Strangely, when following Adobe help, at one point a box is displayed that says
Sorry, Flash Player is either not installed or not enabled.
Please go to step 2.
Step 2 was to install which I did. But the error message still appears. For some reason applications cannot detect the presence and version of Flash Player.