Possible answer:
CSS3 Background-image options is not supported for Firefox 2 to 3.5.
This property is partially supported with prefix -moz- for Firefox 3.6.
Firefox 4 to 60 supports this browser property.
Possible answer:
CSS3 Background-image options is not supported for Firefox 2 to 3.5.
This property is partially supported with prefix -moz- for Firefox 3.6.
Firefox 4 to 60 supports this browser property.