I use FastSpring for several of my businesses. All my Firefox and Chrome customers are currently bouncing off a scary malware warning when they go to check out:
FastSpring support says:
"Our marketing page on fastspring.com was hacked with some malware. Because of this, google lists any FastSpring.com URL as hosting malware and blocks Chrome and Firefox visitors from going to FastSpring.com URLs. While Springboard and Order pages weren't hacked, the net effect is that users of Firefox and Chrome are temporarily blocked from getting to order pages. We are working to clean this up and get google to unblock and hope to have it fixed soon. Buyers using IE, Safari or Opera aren't effected."
For the moment, I've paused all my AdWords campaigns. I'm really hoping this will get resolved quickly.