-moz-opacity: property is unsupported Browser Compatibility Check


The -moz-opacity: CSS extension was replaced in Firefox 3.5 by the CSS opacity: property.

Applicable standards

Change history

  • 5.4 Feb 2014 Added support for CSS Cascading and Inheritance Level 3.
  • 4.0 Jun 2010 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: BugMozillaCssOpacity