Firefox Tomorrow

web api instance property

Navigator: buildID property

View on MDN ↗

Returns the build identifier of the browser. In modern browsers this property now returns a fixed timestamp as a privacy measure, e.g., 20181001000000 in Firefox 64 onwards.

Value

A string representing the build identifier of the application. The build ID is in the form YYYYMMDDHHMMSS.

Examples

console.log(navigator.buildID);

Specifications

Not part of any public standard.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.