No. If you open the browser console and type `window`, you see: ChromeWindow chrome://browser/content/browser.xul Visiting this link is funny by the way.

No. If you open the browser console and type `window`, you see: ChromeWindow chrome://browser/content/browser.xul Visiting this link is funny by the way. Does this complicate having a standalone Gecko though? Surely browser authors could write their own UI and embed Gecko inside without touching XUL.