Mozilla has released a substantial security update to the popular Web browser Firefox. While release notes are terse, saying only that the update fixes "several stability/security issues", the bug list indicates several critical vulnerabilities have been addressed, including three that could be exploited to crash the browser and run arbitrary code. (Free, 17.6 MB)
Find Photos in iPhoto in the Finder
Looking for the file associated with a photo in iPhoto? In iPhoto, to view a photo's file in the Finder, Control-click it and choose Show File from the contextual menu that appears. You can then drag the file's icon into an Open dialog to upload it to a photo-sharing service, for instance, but whatever you do, don't move or rename that file!