Lightbeam

This is an add-on for Firefox that helps to visualize sites that may be tracking you around the internet. The add-on is available from If you only want to see the demo, you don't need any of these; all you need is a modern browser. This will start Firefox with a temporary profile that has Lightbeam installed. Just click on the Lightbeam icon at the bottom-right of the browser window to open the web front-end. At this point, any changes you make to the web front-end simply require reloading the tab containing it. Changing the add-on, however, will require quitting Firefox and running jpm run again. The following software is bundled with the repository and doesn't need to be manually obtained.