This just in from Pew Research:
Across Western Europe, people who say they personally know a Muslim are generally more likely than others to have positive opinions of Muslims and their religion.
One question asked non-Muslim Western Europeans if they agree or disagree with the statement “In their hearts, Muslims want to impose their religious law on everyone else in the country.” In Switzerland – which has a relatively large Muslim population (about 6% of the total population) – those who say they personally know a Muslim are 37 percentage points more likely than those who do not to disagree with this statement. More than eight-in-ten (85%) of those who say they know a Muslim disagree with the statement, compared with just 48% of those who do not know a Muslim.
Large gaps also exist in the UK (37 percentage points), Austria (35 points), Germany (34 points), Ireland (29 points), Italy (27 points), Denmark (26 points) and France (24 points).
While knowing a Muslim is prevalent in most countries across Western Europe, it is less common in the United States, where 45% of adults know someone who is Muslim.