See previous HN discussion about YouTube&#x27;s browser-version sniffing breaking video playback on Firefox because the sniffer was checking for version 43 and version 44 was released...<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10877810" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10877810</a>