Non-standard: This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The :-moz-suppressed CSS pseudo-class is a Mozilla extension that matches elements representing images that were suppressed because loading images from the specified site has been blocked.

Note: This selector is mainly intended to be used by theme developers.


:-moz-suppressed {
  /* ... */


Styling elements that have been blocked

:-moz-suppressed {
  background: yellow;
  padding: 8px;


Not part of any standard.

See also