diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 719535861615..0517b207aa63 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -2387,7 +2387,7 @@ pref("middlemouse.scrollbarPosition", false);
 // Clipboard only supports text/plain
 pref("clipboard.plainTextOnly", false);
 
-#ifdef XP_WIN
+#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
   // Setting false you can disable 4th button and/or 5th button of your mouse.
   // 4th button is typically mapped to "Back" and 5th button is typically mapped
   // to "Forward" button.
diff --git a/widget/gtk/nsWindow.cpp b/widget/gtk/nsWindow.cpp
index 00677d496fef..3929f3da1f0a 100644
--- a/widget/gtk/nsWindow.cpp
+++ b/widget/gtk/nsWindow.cpp
@@ -3027,9 +3027,15 @@ void nsWindow::OnButtonPressEvent(GdkEventButton* aEvent) {
       return;
     // Map buttons 8-9 to back/forward
     case 8:
+      if (!Preferences::GetBool("mousebutton.4th.enabled", true)) {
+        return;
+      }
       DispatchCommandEvent(nsGkAtoms::Back);
       return;
     case 9:
+      if (!Preferences::GetBool("mousebutton.5th.enabled", true)) {
+        return;
+      }
       DispatchCommandEvent(nsGkAtoms::Forward);
       return;
     default: