diff --git a/src/gtk320/apps/_firefox.scss b/src/gtk320/apps/_firefox.scss
new file mode 100644
--- /dev/null
+++ b/src/gtk320/apps/_firefox.scss
@@ -0,0 +1,5 @@
+#MozillaGtkWidget menubar,
+#MozillaGtkWidget .menubar { 
+    color: #eff0f1; 
+    background-color: #475057;
+} 
diff --git a/src/gtk320/gtk.scss b/src/gtk320/gtk.scss
--- a/src/gtk320/gtk.scss
+++ b/src/gtk320/gtk.scss
@@ -31,3 +31,5 @@
 @import "widgets/tooltips";
 @import "widgets/treeview";
 @import "widgets/window_decorations";
+
+@import "apps/firefox"