The party's over. In the past year, the little browser that could, Firefox, became the people's hero, an underdog warrior that took a huge swipe at its enemy, Internet Explorer. IE dipped below 90 percent market share for the first time in years, while Firefox lured users like the Pied Piper, blowing past its own fundraising goals and reigniting the browser wars. Meanwhile, the bad news continued to mount for Microsoft. An IE exploit put even Windows XP SP2 users at risk from phishing schemes, even as Microsoft touted SP2 as the most secure version of Windows yet. Worse, major...