Social Fixer - Social Fixer for Facebook plugs into your browser and improves the existing Facebook.com web site.
Hermes - Pandora Client for OS X
F.B. Purity - F.B. Purity is a browser extension / add-on that lets you clean up and customize Facebook.
Facebook Creator - Video tools for influencers
SpaceHey - SpaceHey is a retro social network focused on privacy and customizability. It's a friendly place to have fun, meet friends, and be creative. Join for free!
FB Unseen - Blocks the ”seen” feature of the Facebook messenger.