UstCast is a fun chrome extension. it's a free extension , it has 37 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 3497 days ago.
Add Button that cast Ustream to Chromecast https://github.com/queile/UstCast
You could download the latest version crx file or older version files and install it.
日本語.
You could find more help information from ustcast support page.
You could send emails to publisher, or check publisher's website.
You could click to report abuse of ustcast.