Facebook denies the allegations, but it has conceded in the past that it inadvertently tracked users through so-called cookies -- small files a website sends to your computer when you visit. It has said it fixed the problem before the Mississippi suit was filed.
"Leading up to September 23, 2011, Facebook tracked, collected, and stored its users' wire or electronic communications, including but not limited to portions of their Internet browsing history even when the users were not logged-in to Facebook," reads the complaint by Brooke Rutledge of Lafayette County, Miss. "Plaintiff did not give consent or otherwise authorize Facebook to intercept, track, collect, and store her wire or electronic communications, including but not limited to her Internet browsing history when not logged-in to Facebook." http://abcnews.go.com/Technology/facebook-privacy-mississippi-woman-sues-facebook-tracked-online/story?id=14754964