Flash Plugin for Firefox

Can anyone point me in the right direction to get flash working with firefox? I notice there is a nsplugin.so in ports/graphics/flash. Would this work for firefox or would it work with netscape?

pkg_add -r TWiki

I was just wondering if anyone has had any problems with updating the TWiki package? I had a few fatal errors, and while my content was not removed from disk, it is no longer accessable from the wiki...