In the wake of yesterday’s terrorist attacks in Paris, Facebook was quick to try and help by implementing new features such as Facebook safety check to help users know if their family and friends are safe. Now, Facebook has implemented another new feature that allows users to show their support for France by putting a blue, white and red filter over their profile picture. The filter is very similar to what Facebook offered when same-sex marriage was legalized in the United States. You can also set the picture to expire after a certain period of time. One hour, one day, a week or more. The option is available on mobile on both android and iOS and on the web.