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)
View Extra Audio Details in Snow Leopard
In Snow Leopard, Option-clicking the Volume icon in the menu bar displays a list of sound input and output devices. Choose one to switch to it; it's much easier than using the Sound preference pane. Also, hold Shift and click the icon to set the system volume, which is separate from the general output volume.