Firefox users can control what data they share with others in an improved Private Browsing mode, according to Mozilla.

Dubbed Tracking Protection, the feature is part of the browser's existing Private Browsing mode, and gives users control over the data that third-parties receive from them.

Mozilla, the organisation behind Firefox, said a feature such as this does not appear in similar private browsers offered by Chrome, Safari, Edge or Internet Explorer.

When people browse the web, they can unknowingly share information about themselves with third-parties that are separate from the site they're actually visiting, even in Private Browsing mode on any browser, warned Mozilla.

"Private Browsing with Tracking Protection in Firefox for Windows, Mac, Android and Linux actively blocks content like ads, analytics trackers and social share buttons that may record your behaviour without your knowledge across sites," the firm added in a statement.

Mozilla has also launched a Control Center in its browser that places site security and privacy controls in a single place - the browser address bar.

"Since some web pages may appear broken when elements that track behaviour are blocked, we've made it easy to turn off Tracking Protection in Private Browsing for a particular site using the Control Center," the firm added.