logo in the Add-on bar.
Lightbeam starts recording connections as soon as it's installed. If you open it now, you'll see a blank screen because nothing's been recorded yet.
To start visualizing your online interactions, open a new tab, navigate to a site, and then check back to the Lightbeam tab to see how your connections graph appears.
Consider contributing data to Mozilla! We'll use it to study the tracking landscape and develop new privacy-protecting technologies for the web.
You can opt in to sharing your data by flipping the "Contribute Data" toggle in the top right corner of the Lightbeam tab to "On".