type about:plugins in the firefox url window and enter, see if Shockwave
Flash is listed followed by File name npwrapper.libflashplayer.so
--you haven't mentioned installing nspluginwrapper
i myself don't have that file but flash works well. i do have nsplugin installed. i'm pretty stranded that i don't see the java inside there. it should be since i can use java apps.