Thank you for your suggestions. I scanned my computer with ADWCleaner but it didn't fixed the problem, I also checked the shortcut properties and everything seemed to be fine.
I disabled all my plug-ins and now the problem is fixed, so the problem was caused either by Facebook Redirect fixer plug-in or by Website Blocker plug-in. None of those plug-ins should have caused this. Are plug-in developers even allowed to do this kind of shady stuff? Can I report it somewhere?