The new Vivaldi browser released by 2016 by co-founder Jon Jon Tetzchner was released yesterday with a very interesting change.
Like most programs browsing, Vivaldi offers a private browsing mode που προσφέρει ένα επιπλέον επίπεδο ιδιωτικότητας, καθώς δεν καταγράφει τους ιστότοπους που επισκέπτεστε και δεν αποθηκεύει cookies ή προσωρινά αρχεία. 
However, Vivaldi with the new edition also changed the default engine search and uses DuckDuckGo in private browsing windows, regardless of what your default browser is in normal browsing mode.
DuckDuckGo was founded by 2008 and is a counterbalance to Google's search engine, which does not track its users on the web, serving the same results to all users.
Apple has added DuckDuckGo as a search option to Safari since 2014, while the Tor browser has used it by default since 2016.
In most of the major browsers, such as Firefox and Chrome, the default search engine in incognito mode is the same as you use in normal browsing.
So the initiative of Vivaldi to bring her DuckDuckGo as the default search engine in private mode can be considered pioneering.
"We believe that privacy is a fundamental right and that users should not be monitored online," said von Tetzchner, who is also the founder and CEO of Vivaldi.
