NoScript - NoScript for Firefox pre-emptively blocks malicious scripts and allows JavaScript, Java and other potentially dangerous content only from sites you trust. Download it now for free! - what is it?
Frost for Facebook - Frost is a third party Facebook wrapper geared towards design and functionality
uMatrix - uMatrix: A point-and-click matrix-based firewall, with many privacy-enhancing tools.
Tinfoil for Facebook - Download Tinfoil for Facebook app for Android. Tinfoil for Facebook is for those users that require a Tinfoil hat. .
Ghostery - Privacy tool for transparency and control
Friendly for Facebook - Friendly is the most complete Facebook Lite and FB Messenger alternative.