A colleague of mine married a Maroccan girl; they have 3 children and are living fine.
From home to the office I go from the jewish residential area to the Turkish residential area without any disturbances.
But I don't have close muslim friends and neither do most of my friends and colleagues.
During my studies, there were muslim and jewish guys in the same class; no problem either (that was between 75 and 81).
And now, many clients are muslims and jews; they are clients and we don't talk politics.
There is however a slight hitch: during Sabbat, jews are not supposed to turn their alarmsystem on when they go out walking in the park with their relatives and friends; thieves know that so they take advantage of this and commit their theft during that time. The insurance companies have noticed this too and have been forced to take special measures like deductibles during sabbat or higher theft rates.

Raoul