Fix hidden mozilla logo in footer

_assets/css/_main.scss

@@ -767,7 +767,7 @@ html {
       text-decoration: none;
       text-indent: 120%;
       white-space: nowrap;
-      background: $black asset_url('moz-logo.svg @optim') no-repeat 0 0 /#{rem-calc(
+      background: #ffffff asset_url('moz-logo.svg @optim') no-repeat 0 0 /#{rem-calc(
           100
         )};
       color: $white;