This deprecated property is not recommended. Authors should generally find an alternative way to accomplish the same task while adhering to all best practices, or simply do without it if it is unimportant.
-moz-background-origin Mozilla extension property determines the background positioning area (the origin of a
background-image). It does not apply when
fixed. This property is only supported in Gecko versions up to version 1.9.2 (Firefox 3.6), and newer versions of Gecko support the standard
See values of the