ImprovedTube - Allows you to improve and enhance Youtube visually or enable dozens of new features permanently or...
Project Ekalavya - Monthly book summaries that you can't forget
Enhancer for YouTube - Tons of features to improve your user experience on YouTube™!
Wibbitz - Watch video summaries of the news you want.
Magic Actions for YouTube - Magic Actions is an extension that changes the way you’ll watch videos on YouTube.
Bookstash - Bookstash is a free library of curated summaries from top nonfiction books.