diff --git a/firefox/user.js b/firefox/user.js
index 8b2a995..6901e23 100644
--- a/firefox/user.js
+++ b/firefox/user.js
@@ -53,6 +53,7 @@ user_pref("doh-rollout.uri", "");
 user_pref("browser.proton.enabled", false);
 user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
 user_pref("widget.content.gtk-theme-override", "TOK");
+user_pref("widget.gtk.overlay-scrollbars.enabled", false);
 user_pref("widget.non-native-theme.enabled", false);
 user_pref("widget.non-native-theme.gtk.scrollbar.allow-buttons", true);
 user_pref("widget.non-native-theme.gtk.scrollbar.round-thumb", false);