Shocking - more Firefox users=more bugs and exploits! Still, major props for response times (less than a day to patch), and market share growth.
Just remember - just because your sh#@ is a different color, doesn't mean it doesn't stink :)
If you really want users to be "safer" tell them to use Opera - though I still think all those plug-ins and extensions that are (essentially) shared across all the desktop browsers makes that choice all more moot than people think...
And of course, the report was produced by a party with an interest in the world being unsafe - read it for yourself and see what you think.