/* Show addons in two columns */ @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); @-moz-document url("about:addons"){ /* Test for Firefox > 66 */ @supports (inset-block:auto){ #addon-list{ display: grid; grid-template-areas: "a a"; grid-template-columns: 1fr 1fr; grid-auto-rows: min-content; } } /* Test for Firefox < 66 */ @supports not (inset-block:auto){ #addon-list > scrollbox > .scrollbox-innerbox{ display: grid; grid-template-areas: "a a"; grid-template-columns: 1fr 1fr; grid-auto-rows: min-content; } } .control-container{ display: flex; } .addon-control{ margin: 3px } .addon.card{ padding-bottom: 0px !important; padding-top: 0px !important } .addon.card > .content-container { display: flex; } .content-inner-container{ flex-grow: 1; } .content-inner-container > hbox{ display: block } .icon{ min-width: 24px } }