https://www.cnet.com/news/amazon-fire-tv-tops-30-million-active-users-beating-roku/

The 30 million figure puts Fire TV ahead of Roku, widely considered one of the most popular streaming-video products, which earlier this week estimated it had 27 million active users. Roku declined to comment.

It's also up from the 25 million Amazon disclosed in October, suggesting growth of 5 million new accounts in three months.