It’s rather easy to flush browser cache for different browsers but regular “clear cache” command through browser menu does not kill flash shared objects (flash cookies).
To clear browser data which will delete all xml files and regular cookies set by server-side scripts is easy and can be done as follows:
Clear cache in safari (mac): Safari(menu item next to the apple icon)>Empty Cache..
clear cache in Chrome(mac): Chrome>Clear Browsing data…
To clear flash cookies and cache you will have to do it through adobe’s website:
go to: Adobe Flash Player settings
there you will see a window like this:
Click on folder icon on top if it’s not selected (not the one with the globe icon but the other one).
from there on you can select websites which you want to delete from flash cache or you can delete all sites, which will clear all flash cookies.
Hit Confirm and you’re done.
Now you can experience flash sites from the clean sheet once again.