Mozilla is to add a secrecy mode to its Firefox 3.1 browser which lets surfers browse the web without leaving a trace.
Both the beta versions of Internet Explorer 8 and Google's Chrome browser have this feature, which has been referred to as 'porn mode.'
Firefox 3.1 is still under construction but developer Ehsan Akhgari has blogged about the details of Private Browsing ahead of its full release.
When Private Browsing is enabled, Firefox will not record the browser, download or search history. Cookies and temporary files will also not be recorded.
Explaining the benefits of this new secret mode, Akhgari said: "Suppose you're doing something online, and you don't want your co-workers know about it. An example scenario would be looking for a new employer while at work!"
"Private Browsing will help you here," he said. However, he added that it will not keep you anonymous from websites or your ISP, or protect you from certain kinds of spyware applications.
Akhgari said that the privacy mode would appear in Firefox 3.1 beta 2, which should be released later this month.
Firefox confirmed its status as the world's second most popular browser; according to web analytics firm Net Applications Mozilla's browser had a 20 per cent global market share for two out of four weeks in October.
www.mozilla.org www.netapplications.com