Midori crashes on any webpage which has flash, but I found a solution.
I start icecat go to a page with flash, close icecat, open midori, and it' ok.
Chatting in the midori irc channel a guy told me to test with gtklauncher, but there is no such a program in tc, so this guy suggetsted me if the mantainer of the webkit extension could include this program in the extension.