&gt; If your problem did not match the things that Javascript was good at, you were completely out of luck. Every other platform has a way of writing your app in different languages.<p>Why didn&#x27;t FirefoxOS also include a mechanism for native apps in some other language? It still could have been an open platform. I understand they like to promote Web technology, and they still could have the HTML5 apps, but that&#x27;s not inherently more open than some other options.<p>That raises an issue I hadn&#x27;t considered: Is Mozilla&#x27;s mission the &#x27;Open Web&#x27; or &#x27;Open Internet&#x27;?