Very similiar feature in Opera desktop since 4 month now [1]. It works pretty good on Windows, Mac and Linux. [1] http://www.opera.com/blogs/desktop/2016/04/op

Very similiar feature in Opera desktop since 4 month now [1]. It works pretty good on Windows, Mac and Linux. [1] http://www.opera.com/blogs/desktop/2016/04/opera-beta-update-video-pop/ http://www.opera.com/blogs/desktop/2016/04/opera-beta-update...