* contact: :mconley
* source: [[https://hg.mozilla.org/mozilla-central/file/tip/testing/talos/talos/startup_test/startup_about_home_paint/addon/]]
* type: Startup, Real-world WebExtensions
* measuring: The time from process start to the point where the about:home page reports that it has painted the Top Sites when 5 popular, real-world WebExtensions are installed and enabled.
* data: we install the 5 real-world WebExtensions, then load and restart the browser 20 times, and collect a timestamp for each run.