Firefox Pioneer

"Mozilla wants to better understand the health of the web, how users interact with it, and how people use their browsers. We think that browsers could do so much more through a better understanding of user behavior. By using the experience of people at human-scale, we can give you content that enriches your life. Pioneer will help us understand and build those experiences, but we can’t do it alone! In order to achieve this, we need to collect and analyze data about web browsing habits. We would like to identify a group of users willing to share this information with us. Data collection will happen in the background while you use Firefox, and your browser may occasionally change behavior slightly."