Firefox is one of the last non-chromium based browsers :(,(reply>), @J Della Beat Chromium based :/,(reply>), How about Vivaldi?,(reply>), @Sai Santhan That's chromium based too :/,(reply>), Try Vivaldi browser,(reply>), @Lokesh Safari uses the WebKit engine, worked on by KDE contributors, which is basically what all Chromium browsers are derived from. Chrome has since forked WebKit, but it's basically the same. Firefox uses the in-house Gecko engine, which began with Mozilla Suite and Netscape 6. Long story short, Mozilla use to be Netscape Communications (later bought by AOL).