Applying styles to specific sitesStylish styles can be made specific to certain URLs with @-moz-document rules. Compatibility Stylish for Firefox and other Mozilla software supports @-moz-document rules. The @-moz-document format is the supported format when posting on userstyles.org. The site software handles converting to other formats for browsers that do not support it. Stylish on Chrome does not support @-moz-document rules,
