diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index ef21972..7a252a2 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -5822,8 +5822,10 @@
       }
     }
     @supports -moz-bool-pref("userChrome.autohide.tabbar") or -moz-bool-pref("userChrome.tab.one_liner") {
-      #navigator-toolbox:hover {
-        --uc-toolbar-height: var(--uc-tabbar-height);
+      @supports -moz-bool-pref("userChrome.autohide.tabbar") or -moz-bool-pref("userChrome.autohide.navbar") {
+        #navigator-toolbox:hover {
+          --uc-toolbar-height: var(--uc-tabbar-height);
+        }
       }
       @supports not -moz-bool-pref("userChrome.autohide.navbar") {
         @supports -moz-bool-pref("userChrome.autohide.bookmarkbar") {
diff --git a/src/autohide/_toolbar_overlap.scss b/src/autohide/_toolbar_overlap.scss
index 03be1f3..03a3f65 100644
--- a/src/autohide/_toolbar_overlap.scss
+++ b/src/autohide/_toolbar_overlap.scss
@@ -27,7 +27,9 @@
 
   &:hover {
     @include Option("userChrome.autohide.tabbar", "userChrome.tab.one_liner") {
-      --uc-toolbar-height: var(--uc-tabbar-height);
+      @include Option("userChrome.autohide.tabbar", "userChrome.autohide.navbar") {
+        --uc-toolbar-height: var(--uc-tabbar-height);
+      }
 
       @include NotOption("userChrome.autohide.navbar") {
         @include Option("userChrome.autohide.bookmarkbar") {