It is a fork of Opera 12 in most ways since it has the same feature set attempt. <a href="http:&#x2F;&#x2F;winaero.com&#x2F;blog&#x2F;vivaldi-a-browser-for-all-opera-12-fans&#x2F;" rel="nofollow">http:&#x2F;&#x2F;winaero.com&#x2F;blog&#x2F;vivaldi-a-browser-for-all-opera-12-f...</a><p>Since Opera 12 is a Closed Source program I am sure they will deny it 100%.