flash player installed but not working in firefox fedora21 x86_64

I am using fedora 21 x86_64 workstation, Firefox and flash player are updated but in sometime not working.

For example, the game Pet Rescue Saga working fine but Papa Pear Saga not working, it tells me "No Flash Player found", as I know in Ubuntu, there is a plugin named Fresh plugin for Firefox and i got the same problem, but when I installed the Fresh plugin, the game worked fine.

So how to install the Fresh plugin or is there any similar plugins to it or any missed dependencies ?