Created attachment 192062 [details] Crash Report As soon as you start scrolling, it crashes.
Having a window with nothing but empty tabs and attempting to scroll will bring up crash for SafariForWebKitDevelopment Web Content while the WebKit app still remains open.
Created attachment 192069 [details] Crash Report on another Mac running 10.8.2
*** This bug has been marked as a duplicate of bug 111721 ***