-Facebook is addicting: The biggest disadvantages of facebook is it’s addiction which causes many problems by killing your precious time.
-Fake profiles and ids: fake profile is one of main disadvantage of facebook. Many people use fake profile for cheat,harass someone they don’t like.
-Facebook privacy: If you don’t use facebook privacy proper way it causes effect on your personal information which you provide to facebook. Many unknown people can track your activities and where you are going.
-You can update status to specific targeted friend list, like office friend, college friend and so on. But many users still don’t use this application.
-Ruing the professional life: If you are applying for a new job, you know your chances of getting that job may be so mach reduced because of your social networking website profile page.
-Scams: Many hackers have similar websites to facebook. They continuously send emails to people asking to log in to their account to check new photos of their friends, or similar message. When the user opens the website, it looks 100% facebook, then he enters his user id and password, hot knowing that his account details is being stolen by a hacker.