It is a fork of Opera 12 in most ways since it has the same feature set attempt. http://winaero.com/blog/vivaldi-a-browser-for-all-opera-12-fans/ http://winaero

It is a fork of Opera 12 in most ways since it has the same feature set attempt. http://winaero.com/blog/vivaldi-a-browser-for-all-opera-12-fans/ http://winaero.com/blog/vivaldi-a-browser-for-all-opera-12-f... Since Opera 12 is a Closed Source program I am sure they will deny it 100%.