Facebook notifications generally contain many links shared by those you are connected with, but you should not necessarily trust all of them. Since crime on the Internet is quite often, some of these links could be dangerous. So it’s better to check the validity of the links before you click them. An easy way to go about it is by using the free Norton Safe Web for Facebook app. In order to get the app, log-in to your Facebook account and then search for ‘Norton Safe Web’. Here, click on the link to the application and change the setting for visibility of posts from this app to ‘Only me’ and then click on ‘To application’. In the next step you will have to grant permission to the app to access posts; to do so click on ‘Permit’. The app will then investigate all links from the past 24 hours and present you with the results in compressed form as a summary, along with the details of individual links. In addition, you must check the ‘Activate the Autoscan’ option so that you do not always have to request the test.