OS X per-user temp files contain traces of the Tor Browser Bundle
A forensic analysis of the Tor Browser Bundle (version 2.3.25-6, 64-bit) on OS X 10.8 showed that per-user temp files contain traces of the Tor Browser Bundle.
OS X stores per-user temporary files and caches in /var/folders/. The following files contain the path to the attached external drive, the path to the Tor Browser Bundle on the Desktop, and the path to the Tor Browser Bundle in the Trash:
These files also contain strings such as org.torproject.torbrowserbundle, org.mozilla.torbrowser, torbrowser_en-us.app, torbrowser.app, net.vidalia-project.vidalia, and vidalia.app. I have not been able to open the last file, thumbnails.data but it might contain traces of the Tor Browser Bundle and/or the attached external drive.