According to a 2014 Pew Research Center survey, Muslims are viewed favorably by 72 percent of the French public, 58 percent of Germans, and 64 percent of the British public.  France, Germany and the UK have the largest Muslim populations among European Union member countries, with 4.7, 4.8, and 3 million Muslims respectively.

Other European countries, especially in southern Europe, have more mixed views of Muslims.  Negative views are highest in Italy, where only 28 percent of respondents said they have favorable views of Muslims.


In each of the seven countries surveyed by Pew, public opinion regarding Muslims was linked to ideology and age.  Respondents on the political right were more likely to give Muslims in their country an unfavorable rating, as were older respondents (age 50 and over).

The Muslim share of Europe's total population has grown from four percent in 1990, to 6 percent in 2010, and is projected to reach eight percent in 2030.

Read more:
http://www.pewresearch.org/fact-tank/2015/01/15/5-facts-about-the-muslim-population-in-europe/#more-266325
http://www.pewglobal.org/2014/05/12/chapter-4-views-of-roma-muslims-jews/#mixed-views-of-muslim-minorities