Since launch last week in excess of 17.3 million downloads of Firefox 3 have taken place.
The browser saw eight million downloads within the first 24-hours of its release, more than ever downloaded in a single day before and a statistic currently being considered for inclusion within the Guinness Book of Records.
Firefox 2 was downloaded 1.6 million times in its first 24 hours of release; to date, it has been downloaded more than half a billion times, according to Mozilla.
New features in the web browser include one-click bookmarking, the smart location bar and lightning fast performance. It also includes phishing and malware protection, built-in spell checking, session restore and full zoom.
The developers claim 15,000 new tweaks, features and improvements in the software, which is rapidly building market share at the expense of Internet Explorer.