What’s New in Firefox 3.6.2
Firefox 3.6.2 fixes the following issues found in previous versions of Firefox 3.6:

Fixed a critical security issue that could potentially allow remote code execution.
Fixed several additional security issues.
Fixed several stability issues.

Firefox 3.6.2 requires a G3, G4, G5 or Intel-based Mac, Mac OS X 10.4 or later and 128MB of RAM to [...]