Browsers

WOT: Instantly see which sites you can trust

Bynamite: Monitor the data that advertisers collect about you

A free program for Mac, by Devon Jensen.

Prevent Cheating with Respondus Lockdown Browser

Amaya: An Open Source Web Browser/Editor

A Lightweight and Simple Browser

Privacy Badger: A Privacy Extension to Stop Sites from Tracking You

Stylish: Give Firefox and web pages a CSS makeover

Personas Plus: Instantly spice up the way Firefox looks

Auto complete usernames and passwords in Firefox - Sxipper