The Mozilla Foundation, the organisation behind the Firefox web browser, is considering tracking its users’ browsing habits on a voluntary basis. Last week, Mozilla’s CEO John Lilly revealed that the organisation was working on a project known internally as ‘Data’ – a project that is said to collect data on users’ browsing habits if they chose to opt into the scheme and provide anonymous usage statistics to anyone who wants the information. “The key insight is not so much that rich clients or web sites are able to collect information about what people do, but rather that this data is one of the most important pieces to faciliate [sic] understanding (and innovation), and is also one of the most under-explored areas of the modern web,” claims Lilly on his blog. “There remain worlds of information about how people use the web that are locked up and not currently shared,” he later added.