Currently Being ModeratedAug 5, 2012 4:24 PM (in response to Gloria)
Mountain Lion comes with Safari 6.
Apple removed "Empty Caches" from Safari menu.
1. Now clearing history clears caches and favicons.
2. Enable Develop menu.
Safari > Preferences > Advanced
At the bottom check the box "Show Develop menu in menu bar".
Develop menu will appear in menu bar.
Click Develop and from the dropdown select "Empty Caches".