Moving Firefox to a faster 4-week release cycle

And today we're excited to announce that we're moving to a four-week release cycle! We're adjusting our cadence to increase our agility, and bring you new features more quickly. In recent quarters, we've had many requests to take features to market sooner. Feature teams are increasingly working in sprints that align better with shorter release cycles. Considering these factors, it is time we changed our release cadence. I've been incredibly satisfied with Firefox for a long time now, and aside from a few hiccups along the way, I trust the team to handle a faster release cycle just fine.