&gt; It doesn&#x27;t reflect well on Mozilla either that they hired someone who seems to be so out of his depth on core matters to Mozilla&#x27;s business.<p>Andreas wasn&#x27;t hired as an executive, and you could have easily confirmed this [1] before posting this comment. He started as a developer in 2008 on the JS engine. As he was basically responsible for TraceMonkey, Andreas is a large part of the reason why SpiderMonkey is one of if not the fastest JS engines around.<p>[1]: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Andreas_Gal" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Andreas_Gal</a>