Restrict background data for Facebook, but notifications still coming in

I would only like particular applications to show notifications when I'm not on Wifi and those would be:

• Google Services - unfortunately there are several syncs here but AFAIK we can't control individual ones


• Google Search - I'm not sure what this one does but I suppose I want to keep this one up


• GMail - for obvious reasons

But all of the others I would like to disable. Including Facebook.

The problem I'm having is that Facebook notifications are still being displayed on my phone. What am I missing?