Citrix adds virtualization to app delivery; Firefox gets security boost

Citrix Systems unveiled the newest version of its flagship Presentation Server — renamed XenApp — as the company seeks to align its traditional application-delivery tools with the desktop and server virtualization technology it acquired with its purchase of virtualization vendor XenSource. Also, Carnegie-Mellon University says its School of Computer Science and College of Engineering have developed an add-on to Mozilla Firefox 3.0 that protects that browser's users against attacks that might occur because of the recently disclosed software flaw in the domain-name system or DNS, and provides an extra measure of security for sites that use self-signed authentication certificates. (5:11)

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