Not just a suggestion but a fix.
Basically, I was getting this too, with Safari now crashing on me when I went to certain sites. It's a conflict that hasn't been sorted out yet.
So, the fiX:
Go the the Flip4Mac folder in your Applications folder and click on the Uninstaller package and get rid of the whole thing.
Then, install Flip4Mac again only this time, choose Custom install and uncheck the option to play WMA files on the internet.
They'll still be played and, if you use Flip4Mac to watch WMA files on your Mac, they'll be converted.
A bummer, but that's the workaround for now.