There are a few things you can do to find out how long you’ve been friends with someone on Facebook.

  1. Type their name into the “Friends” tab on the Facebook website and look at the list of friends that have connected with them in the past.
  2. Click on “View All Friends” in the top right corner of the Facebook website and see how many friends they have connected with in the past month.
  3. Click on “Add Friend” in the top left corner of the Facebook website and connect with someone that you haven’t connected with in a while.