diff --git a/src/tabbar/sound_tab/_show_with_favicons.scss b/src/tabbar/sound_tab/_show_with_favicons.scss
index 48fdac7..bfbb565 100644
--- a/src/tabbar/sound_tab/_show_with_favicons.scss
+++ b/src/tabbar/sound_tab/_show_with_favicons.scss
@@ -43,7 +43,7 @@
 }
 
 /* None exist favicon - Size bigger */
-@icnlude NotOption("userChrome.tab.always_show_tab_icon") {
+@include NotOption("userChrome.tab.always_show_tab_icon") {
   .tabbrowser-tab:not([image]) .tab-icon-overlay:not([pinned], [sharing], [crashed]) {
     transform: translateX(-0.5px) translateY(-1px);
     inset-inline-end: 0 !important;
diff --git a/userChrome.css b/userChrome.css
index 5dc45cb..4eaaf27 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -4574,7 +4574,7 @@
     }
   }
   /* None exist favicon - Size bigger */
-  @icnlude NotOption("userChrome.tab.always_show_tab_icon") {
+  @supports not -moz-bool-pref("userChrome.tab.always_show_tab_icon") {
     .tabbrowser-tab:not([image]) .tab-icon-overlay:not([pinned], [sharing], [crashed]) {
       transform: translateX(-0.5px) translateY(-1px);
       inset-inline-end: 0 !important;