--- a/toolkit/mozapps/extensions/content/extensions.css
+++ b/toolkit/mozapps/extensions/content/extensions.css
@@ -126,16 +126,21 @@ setting[type="menulist"] {
 
 #addonitem-popup[addontype="theme"] > #menuitem_enableItem,
 #addonitem-popup[addontype="theme"] > #menuitem_disableItem,
 #addonitem-popup:not([addontype="theme"]) > #menuitem_enableTheme,
 #addonitem-popup:not([addontype="theme"]) > #menuitem_disableTheme {
   display: none;
 }
 
+#show-disabled-unsigned-extensions .button-text {
+  -moz-margin-start: 3px !important;
+  -moz-margin-end: 2px !important;
+}
+
 #header-searching:not([active]) {
   visibility: hidden;
 }
 
 #search-list[local="false"]  > .addon[remote="false"],
 #search-list[remote="false"] > .addon[remote="true"] {
   visibility: collapse;
 }