diff --git a/ui/app/components/ui/popover/index.scss b/ui/app/components/ui/popover/index.scss
index a87561693..a74db3333 100644
--- a/ui/app/components/ui/popover/index.scss
+++ b/ui/app/components/ui/popover/index.scss
@@ -37,9 +37,6 @@
       margin: 10px;
       background: none;
       padding: 0;
-      &::-moz-focus-inner {
-        border: none;
-      }
     }
   }
 
diff --git a/ui/app/css/itcss/generic/reset.scss b/ui/app/css/itcss/generic/reset.scss
index a417a0453..c556eddc3 100644
--- a/ui/app/css/itcss/generic/reset.scss
+++ b/ui/app/css/itcss/generic/reset.scss
@@ -138,6 +138,9 @@ table {
 button {
   border-style: none;
   cursor: pointer;
+  &::-moz-focus-inner {
+    border: none;
+  }
 }
 
 /* stylelint-enable */