To be fair, the &quot;low-end&quot; devices Firefox OS were targeting were miles more powerful than what Opera Platform targeted a decade prior, and JS VMs are far quicker than they were a decade prior… I&#x27;m not sure it&#x27;s so obvious that low-end devices doomed it to failure (of course, you actually worked on this stuff unlike me!).<p>I think it&#x27;s worthwhile to remember at the time Firefox OS launched much of Android ran on the Dalvik VM, so it wasn&#x27;t so clear cut that the approach was so doomed to fail.