Possible Duplicate:
How do I fix Flash issues?
Flash works under my first created user account. about:plugins shows File: /usr/lib/mozilla/plugins/libflashplayer.so, which is fine. Works with Firefox and Chromium.
When I log out and login into another or new user account, about:plugins does not show the Flash plugin. Neither in Firefox nor Chromium.
I tried flashplugin-nonfree, flashplugin-installer and flash-aid, installed under different user accounts. It always works only under my first created user account.
How can I fix this?