Undo "Always trust content from this publisher"

[Norge]

So I stopped by http://www.mmo-champion.com/ to get my WOW fix yesterday and made a mistake. They have some sort of Major League Gaming coverage going on that requires a special player. I didn't see a problem running the player once so I clicked "Yes" to let it install. The problem was that I forgot to uncheck the "always trust content from this publisher button." Now the software for the player installs every time I visit MMO Champion without a prompt. I know eventually MMO Champion will remove the player from it's site but I want to change it so that Firefox no longer trusts that publisher automatically. How do I undo this option?

Thanks,

Norge

[Lincoln]

Should be under Tools -> Options -> Security -> Exceptions

[Norge]

I uninstalled the software and made sure it was removed from Exceptions within Firefox. It seems to be doing the trick. Thanks!

Norge