François recommends forking  and modifying it to use the entries that will be hardcoded into the blocklist. Once your pull request against that repo is accepted, the test page will be automatically deployed at https://itisatrap.org/firefox/blocked.html  https://github.com/mozilla/itisatrap/blob/master/firefox/its-a-tracker.html
Created attachment 8736934 [details] [review] Add blocking.html to itsatrap.org
Once you're happy with the wording, I recommend getting Matej to review it quickly. When I did that for the forbidden lists in bug 1216727, I attached a screenshot of the test page and flagged Matej for review on the screenshot.
Created attachment 8738300 [details] Screenshot of the new page Matej, here's another test page for itisatrap.org. Is there anything you'd like us to change in the copy?
Comment on attachment 8738300 [details] Screenshot of the new page Looks fine to me. Thanks.