http://tstzmgqansvqfzr3qrkehszmlhjqbpqp7pwncrzr72ohyygrnbuu26qd.onion/articles/firefox-begone
Pop-in with the following content: [Cartoon fox waving a paw] Welcome Back Here's a quick reminder that you can keep your favorite indie browser just one click away. [Highlighted button] Open my links with Firefox [Simple hyperlink] Not now Cute Fox sure, but that dark-patterned popin spawned right in the web-based game I was testing, well after it loaded.