diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index 3056c56..384c286 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -4408,7 +4408,7 @@
     /* Same as .titlebar-spacer[type="pre-tabs"]  - Extra space reserved on both sides of the nav-bar to be able to drag the window */
     --uc-window-drag-space-post: 0px;
     /* Same as .titlebar-spacer[type="post-tabs"] */
-    --uc-widow-control-space: calc(var(--uc-window-control-width) + var(--uc-window-drag-space-post));
+    --uc-window-control-space: calc(var(--uc-window-control-width) + var(--uc-window-drag-space-post));
   }
 
   :root:is([tabsintitlebar], [sizemode="fullscreen"]) {
@@ -4437,7 +4437,7 @@
     }
 
     :root[sizemode="fullscreen"] {
-      --uc-widow-control-space: 0;
+      --uc-window-control-space: 0;
     }
   }
   :root:is([tabsintitlebar][sizemode="maximized"], [sizemode="fullscreen"]) {
@@ -5361,7 +5361,7 @@
         @supports -moz-bool-pref("userChrome.tabbar.as_titlebar") {
           :root:is([tabsintitlebar], [sizemode="fullscreen"]) #tabbrowser-tabs {
             /* Don't need window control */
-            --uc-widow-control-space: 0px;
+            --uc-window-control-space: 0px;
           }
         }
       }
@@ -5376,7 +5376,7 @@
             (-moz-platform: windows-win10) {
             :root:is([tabsintitlebar], [sizemode="fullscreen"]) {
               /* Don't need window control */
-              --uc-widow-control-space: 0px;
+              --uc-window-control-space: 0px;
             }
           }
         }
@@ -5389,7 +5389,7 @@
             /* Don't need pre spacer */
             --uc-window-drag-space-pre: 0px;
             /* Don't need window control */
-            --uc-widow-control-space: 0px;
+            --uc-window-control-space: 0px;
           }
         }
       }
@@ -5410,7 +5410,7 @@
           @supports -moz-bool-pref("userChrome.tabbar.as_titlebar") {
             :root:is([tabsintitlebar], [sizemode="fullscreen"]) #tabbrowser-tabs {
               /* Don't need window control */
-              --uc-widow-control-space: 0px;
+              --uc-window-control-space: 0px;
             }
           }
         }
@@ -5425,7 +5425,7 @@
               (-moz-platform: windows-win10) {
               :root:is([tabsintitlebar], [sizemode="fullscreen"]) {
                 /* Don't need window control */
-                --uc-widow-control-space: 0px;
+                --uc-window-control-space: 0px;
               }
             }
           }
@@ -5447,14 +5447,14 @@
     @supports not -moz-bool-pref("userChrome.tabbar.one_liner") {
       #nav-bar {
         border-inline-start-width: var(--uc-window-drag-space-pre);
-        border-inline-end-width: var(--uc-widow-control-space);
+        border-inline-end-width: var(--uc-window-control-space);
       }
     }
     @supports -moz-bool-pref("userChrome.tabbar.one_liner") {
       @supports -moz-bool-pref("userChrome.tabbar.one_liner.combine_navbar") {
         #nav-bar {
           border-inline-start-width: var(--uc-window-drag-space-pre);
-          border-inline-end-width: var(--uc-widow-control-space);
+          border-inline-end-width: var(--uc-window-control-space);
         }
       }
       @supports not -moz-bool-pref("userChrome.tabbar.one_liner.combine_navbar") {
@@ -5462,7 +5462,7 @@
           @media screen and (max-width: 1100px) {
             #nav-bar {
               border-inline-start-width: var(--uc-window-drag-space-pre);
-              border-inline-end-width: var(--uc-widow-control-space);
+              border-inline-end-width: var(--uc-window-control-space);
             }
           }
         }
@@ -5478,7 +5478,7 @@
           }
           @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
             #nav-bar {
-              margin-inline-end: var(--uc-widow-control-space) !important;
+              margin-inline-end: var(--uc-window-control-space) !important;
             }
           }
         }
@@ -5491,7 +5491,7 @@
             }
             @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
               #nav-bar {
-                margin-inline-end: var(--uc-widow-control-space) !important;
+                margin-inline-end: var(--uc-window-control-space) !important;
               }
             }
           }
@@ -5505,14 +5505,14 @@
   @supports -moz-bool-pref("layout.css.osx-font-smoothing.enabled") {
     @supports not -moz-bool-pref("userChrome.tabbar.one_liner") {
       :root[tabsintitlebar="true"]:not([inFullscreen]) #nav-bar {
-        border-inline-start-width: var(--uc-widow-control-space);
+        border-inline-start-width: var(--uc-window-control-space);
         border-inline-end-width: var(--uc-window-drag-space-pre);
       }
     }
     @supports -moz-bool-pref("userChrome.tabbar.one_liner") {
       @supports -moz-bool-pref("userChrome.tabbar.one_liner.combine_navbar") {
         :root[tabsintitlebar="true"]:not([inFullscreen]) #nav-bar {
-          border-inline-start-width: var(--uc-widow-control-space);
+          border-inline-start-width: var(--uc-window-control-space);
           border-inline-end-width: var(--uc-window-drag-space-pre);
         }
       }
@@ -5520,7 +5520,7 @@
         @supports -moz-bool-pref("userChrome.tabbar.on_bottom") or -moz-bool-pref("userChrome.hidden.tabbar") {
           @media screen and (max-width: 1100px) {
             :root[tabsintitlebar="true"]:not([inFullscreen]) #nav-bar {
-              border-inline-start-width: var(--uc-widow-control-space);
+              border-inline-start-width: var(--uc-window-control-space);
               border-inline-end-width: var(--uc-window-drag-space-pre);
             }
           }
@@ -5532,7 +5532,7 @@
         @supports not -moz-bool-pref("userChrome.tabbar.one_liner.responsive") {
           @supports not -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
             :root[tabsintitlebar="true"]:not([inFullscreen]) #nav-bar {
-              margin-inline-start: var(--uc-widow-control-space, 0px) !important;
+              margin-inline-start: var(--uc-window-control-space, 0px) !important;
             }
           }
           @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
@@ -5545,7 +5545,7 @@
           @media screen and (min-width: 1100px) {
             @supports not -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
               :root[tabsintitlebar="true"]:not([inFullscreen]) #nav-bar {
-                margin-inline-start: var(--uc-widow-control-space, 0px) !important;
+                margin-inline-start: var(--uc-window-control-space, 0px) !important;
               }
             }
             @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
@@ -5568,7 +5568,7 @@
           }
           @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
             :root[tabsintitlebar="true"]:not([inFullscreen]) #TabsToolbar {
-              margin-inline-start: var(--uc-widow-control-space, 0px) !important;
+              margin-inline-start: var(--uc-window-control-space, 0px) !important;
             }
           }
         }
@@ -5581,7 +5581,7 @@
             }
             @supports -moz-bool-pref("userChrome.tabbar.one_liner.tabbar_first") {
               :root[tabsintitlebar="true"]:not([inFullscreen]) #TabsToolbar {
-                margin-inline-start: var(--uc-widow-control-space, 0px) !important;
+                margin-inline-start: var(--uc-window-control-space, 0px) !important;
               }
             }
           }
@@ -5613,7 +5613,7 @@
   .tabbrowser-tab[selected="true"] {
     -moz-window-dragging: drag;
     --tab-max-width: 100vw;
-    min-width: calc(var(--uc-tabbar-width, 100vw) - var(--uc-widow-control-space)) !important;
+    min-width: calc(var(--uc-tabbar-width, 100vw) - var(--uc-window-control-space)) !important;
     max-width: var(--tab-max-width) !important;
     margin-inline-start: calc(var(--tab-shadow-max-size) * -1) !important;
   }
diff --git a/src/tabbar/_as_titlebar.scss b/src/tabbar/_as_titlebar.scss
index 2bdacab..7d6fcb0 100644
--- a/src/tabbar/_as_titlebar.scss
+++ b/src/tabbar/_as_titlebar.scss
@@ -28,7 +28,7 @@ spacer:is([part="overflow-start-indicator"], [part="overflow-end-indicator"]),
 .tabbrowser-tab[selected="true"] {
   -moz-window-dragging: drag;
   --tab-max-width: 100vw;
-  min-width: calc(var(--uc-tabbar-width, 100vw) - var(--uc-widow-control-space)) !important;
+  min-width: calc(var(--uc-tabbar-width, 100vw) - var(--uc-window-control-space)) !important;
   max-width: var(--tab-max-width) !important;
 
   margin-inline-start: calc(var(--tab-shadow-max-size) * -1) !important;
diff --git a/src/tabbar/layout/_navbar_padding.scss b/src/tabbar/layout/_navbar_padding.scss
index 0f21f2c..23fb498 100644
--- a/src/tabbar/layout/_navbar_padding.scss
+++ b/src/tabbar/layout/_navbar_padding.scss
@@ -9,7 +9,7 @@
 
 @mixin _remove_spacer_post() {
   /* Don't need window control */
-  --uc-widow-control-space: 0px;
+  --uc-window-control-space: 0px;
 }
 
 @mixin _remove_spacer_oneLiner() {
@@ -91,7 +91,7 @@
   @include OS($win, $linux) {
     @include _oneLiner_navBar_borderPadding {
       border-inline-start-width: var(--uc-window-drag-space-pre);
-      border-inline-end-width: var(--uc-widow-control-space);
+      border-inline-end-width: var(--uc-window-control-space);
     }
 
     @include Option("userChrome.tabbar.one_liner") {
@@ -100,7 +100,7 @@
           margin-inline-start: var(--uc-window-drag-space-pre) !important;
         }
         @include Option("userChrome.tabbar.one_liner.tabbar_first") {
-          margin-inline-end: var(--uc-widow-control-space) !important;
+          margin-inline-end: var(--uc-window-control-space) !important;
         }
       }
     }
@@ -112,14 +112,14 @@
 @include OS($mac) {
   :root[tabsintitlebar="true"]:not([inFullscreen]) #nav-bar {
     @include _oneLiner_navBar_borderPadding {
-      border-inline-start-width: var(--uc-widow-control-space);
+      border-inline-start-width: var(--uc-window-control-space);
       border-inline-end-width: var(--uc-window-drag-space-pre);
     }
 
     @include Option("userChrome.tabbar.one_liner") {
       @include _oneLiner_navBar_marginGap {
         @include NotOption("userChrome.tabbar.one_liner.tabbar_first") {
-          margin-inline-start: var(--uc-widow-control-space, 0px) !important;
+          margin-inline-start: var(--uc-window-control-space, 0px) !important;
         }
         @include Option("userChrome.tabbar.one_liner.tabbar_first") {
           margin-inline-end: var(--uc-window-drag-space-pre, 0px) !important;
@@ -134,7 +134,7 @@
           margin-inline-end: var(--uc-window-drag-space-pre, 0px) !important;
         }
         @include Option("userChrome.tabbar.one_liner.tabbar_first") {
-          margin-inline-start: var(--uc-widow-control-space, 0px) !important;
+          margin-inline-start: var(--uc-window-control-space, 0px) !important;
         }
       }
     }
diff --git a/src/tabbar/layout/_window_control_size.scss b/src/tabbar/layout/_window_control_size.scss
index e62c59b..a7f5b59 100644
--- a/src/tabbar/layout/_window_control_size.scss
+++ b/src/tabbar/layout/_window_control_size.scss
@@ -3,7 +3,7 @@
   --uc-window-drag-space-pre: 0px;  /* Same as .titlebar-spacer[type="pre-tabs"]  - Extra space reserved on both sides of the nav-bar to be able to drag the window */
   --uc-window-drag-space-post: 0px; /* Same as .titlebar-spacer[type="post-tabs"] */
 
-  --uc-widow-control-space: calc(var(--uc-window-control-width) + var(--uc-window-drag-space-post));
+  --uc-window-control-space: calc(var(--uc-window-control-width) + var(--uc-window-drag-space-post));
 }
 
 :root:is([tabsintitlebar], [sizemode="fullscreen"]) {
@@ -23,7 +23,7 @@
     --uc-window-control-width: 72px;
   }
   :root[sizemode="fullscreen"] {
-    --uc-widow-control-space: 0;
+    --uc-window-control-space: 0;
   }
 }