If you're using FreeBSD 7 stable (recent build) than you can use Adobe Flash 9 too with Linuxulator. Just install nspluginwrapper, Linux base f8 (it's essential to mount linprocfs), set compat.linux.osrelease to 2.6.16 and of course Adobe Flash 9. You will get sound etc. pp. Sometimes you have to killall npviewer.bin but that's a minor annoyance. Otherwise it works like a charm.
It's already fixed and MFCed. PCBSD 7 just got an update to 7.0.1 (Flash 9 support)
http://lists.freebsd.org/pipermail/f...er/005311.html
I wrote some howto for German users:
https://www.bsdwiki.de/Adobe_Flash_9_in_Firefox