WodPress – FaceBook

I want to fetch profile pic of the user who likes my facebook page but I cant as FB only shows 500 people when I hit ‘see all fans’. I want to do something cool for my fb fanpage fans (total above 10,000)

So as an alternate solution I think, I will tell my fans to interact with a plugin on my website, so is there any plugin which can extract the users fb profile pic who interacts with the plugin ?

any help would be appreciated, or any other alternate solutions.