This seems to be one of the effects of Mozilla laying off 70 people last week. <a href="https://news.ycombinator.com/item?id=22057737" rel="nofollow">https://news.ycombinator.com/item?id=22057737</a>
Title slightly editorialized because the name "Firefox Replay" showed up in previous HN discussion at <a href="https://news.ycombinator.com/item?id=21655958" rel="nofollow">https://news.ycombinator.com/item?id=21655958</a> (1596 points)