"No Distractions" for Facebook is a Safari extension that makes the layout of Facebook less distracting:
On the home page, it removes the posting prompt, stories, newsfeed, sidebar, sponsored posts. It also removes the 'Gaming' link in the menu.
This gives you a minimalistic Facebook experience, which makes it easier to control how you use the site.
PLEASE NOTE that the extension currently isn't customisable - so if the newsfeed is an essential feature for you to have when you visit Facebook in Safari, this extension probably won't be helpful for you.
This extension is open source - you can find the source code at https://github.com/ulyngs/open-source-no-distractions-for-fb