Mozilla is the happy :) – IE is the sad :(
Says Wired, Mozilla Feeds on Rival’s Woes:
Downloads of Mozilla and Firefox — an advanced version of Mozilla — spiked the day CERT’s warning was released, and demand has continued to grow. According to Chris Hofmann, engineering director at the Mozilla Foundation, formed last July to promote the development, distribution and adoption of Mozilla Web applications, downloads of the browsers hit an all-time high on Thursday, from the usual 100,000 or so downloads on a normal day to more than 200,000.
(See Also: Vulnerability Note VU#713878)