My notifications on Facebook aren't showing up?

Is there a way to prevent certain types of messages from showing up in notifications on the Facebook website and mobile app (not email)?

• I turned off all email notifications a long time ago but what's annoying now is all of the notifications that show up on the site and mobile app (in the Your Notifications list) when someone invites me to an event, asks me to like a page, etc. I still want to receive certain types of notifications but would like to turn off all notifications of certain types regardless of who they are from. Is this possible?

• Answer:

  Notifications is specifically the place that all other undisplayed content that involves you is collected. You cannot turn anything off from being displayed in notifications. Otherwise you would have no way of knowing that this type of content/invites/messages are being sent to you. So yes, all those stupid game requests, event invites, hidden group messages, comments by others on posts you comment on, posts from "close friends", and so on, are all displayed here (and likely nowhere else). You can only hide this "crap" from your newsfeed, e-mail notifications, and timeline/wall posts.