&gt; That&#x27;s not actually so bad of a concept, but then you have the opposite problem. Nothing that does anything you can&#x27;t do in a traditional web page is portable outside of Firefox OS so you have no user base with which to attract developers.<p>Yes, I&#x27;d agree that is&#x2F;was much more of a problem than the technology stack itself.<p>&gt; Make a runtime that runs the Firefox OS apps on Debian and Android and Windows. That would be interesting.<p>There is such a thing: <a href="https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;Marketplace&#x2F;Options&#x2F;Open_web_apps_for_desktop" rel="nofollow">https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;Marketplace&#x2F;Options&#x2F;Open...</a>