[Abraham]

Well, the main French Muslim organisation distanced itself from the riots and even issued a Fathwa against those Muslims who'ld participate.
Let's see if it helps, but I have my doubt.
This is not a religious problem but much more a social problem of gangs of unemployed youth, who find themselves rejected in a period of economic stagnation in France. They'll use anything, including Islam, to create some common bond or purpose. To me they are as much real Muslim as the IRA was real Catholic...
But it certainly does not promote integration and understanding from the French society, I'm afraid.