https://blog.wongcw.com/2019/09/19/vivaldi-2-8%e6%ad%a3%e5%bc%8f%e7%99%bc%e5%b8%83%ef%bc%9a%e5%bc%95%e5%85%a5%e8%b7%a8%e5%b9%b3%e5%8f%b0%e5%90%8c%e6%ad%a5%e5%8a%9f%e8%83%bdvivaldi-sync/