On the right hand side of the post, hover with the mouse and a small window appears saying ... Hide ... click it and it should ask .. Hide the person or hide the application - click application. Keep doing this for all the different applications and eventually they will stop appearing - until that is a new application that people start using.
If it only has hide the person as an option then it's not an application (I guess) so you can't then do much about it, accept if you do want to hide the person.
Maybe someone with more knowledge can say more about these applications, however as far as I know they are not developed by Face Book & some may not be trustworthy.
I do have some people hidden but not because they are not my friends but only because they post using f*&%$ etc & have a nephew to think about.
Also people should check & update their privacy settings as FB changed it that most/all is visiable to all and not just your friends.
Have a nice day
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