I see several link for doing this :

• Can I use the same built in flash library from Chrome in Firefox?


• http://helpdeskgeek.com/how-to/use-the-google-chrome-flash-plugin-in-firefox-in-ubuntu/

But there is not any libgcflashplugin.so or libflashplayergc.so in /opt/google/chrome directory (in Google Chrome 21).
I find /opt/google/chrome/PepperFlash/libpepflashplayer.so and create a link to /.mozilla/plugins/ but firefox did not know it as a plugin.

How can i use The Google Chrome 21 Flash Plugin in Firefox (14) in Ubuntu 12.04.

Thanks.