Netflix has previously integrated its service with Facebook outside the United States.
"There are few better ways to find a movie or TV series you'll love than hearing about it from your friends," said Netflix vice president of product innovation Tom Willerer.
"Facebook already makes it easy for our international members to connect with friends over TV shows and movies and we're thrilled to now bring this experience to our US members."
Synching with Facebook is optional for Netflix users. Those who connect to Facebook will see lists of shows or films viewed by friends at the social network, according to Netflix.
"Over the years, Netflix has deepened its Facebook integration to enable people to discover movies through friends and to share what they're watching," said Facebook's Justin Osofsky.
"With their integration, Netflix has a new opportunity to reach the more than one billion people on Facebook."