Sorry if I'm dense, but unlike mozilla? are mozilla css extensions not "prefixes" in this context? https://developer.mozilla.org/en-US/docs/CSS/CSS_Reference/Mo

Sorry if I'm dense, but unlike mozilla? are mozilla css extensions not "prefixes" in this context? https://developer.mozilla.org/en-US/docs/CSS/CSS_Reference/Mozilla_Extensions?redirectlocale=en-US&redirectslug=CSS_Reference%2FMozilla_Extensions https://developer.mozilla.org/en-US/docs/CSS/CSS_Reference/M... or can someone explain to me the difference?