Productivity Planner - This package contains a selection of 10 templates that have helped me increase my productivity over the past 5 years.
Momentum - Agile goal and performance management
QuietKit - Guided meditation for beginners (for free)
New Tab by Flickr - Get a beautiful photo each time you open a new tab
Gratitude Flow - Gratitude Flow is a web extension that allows you to share and receive gratitude on your new tab with real people around the world.
Letz - Chat bot that will make you enjoy productivity