diff --git a/locales/index.d.ts b/locales/index.d.ts
index 737a2d77d6..37028d0b65 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -5610,6 +5610,10 @@ export interface Locale extends ILocale {
          * 有効にすると、一部のシチュエーションでのユーザビリティが低下する場合があります。
          */
         "makeEveryTextElementsSelectable_description": string;
+        /**
+         * ナビゲーションバーに副ボタンを表示
+         */
+        "showNavbarSubButtons": string;
     };
     "_preferencesProfile": {
         /**
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 93dc352799..a3660b914a 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1403,6 +1403,7 @@ _settings:
   timelineAndNote: "タイムラインとノート"
   makeEveryTextElementsSelectable: "全てのテキスト要素を選択可能にする"
   makeEveryTextElementsSelectable_description: "有効にすると、一部のシチュエーションでのユーザビリティが低下する場合があります。"
+  showNavbarSubButtons: "ナビゲーションバーに副ボタンを表示"
 
 _preferencesProfile:
   profileName: "プロファイル名"
diff --git a/packages/frontend/src/pages/settings/navbar.vue b/packages/frontend/src/pages/settings/navbar.vue
index 706cb731eb..b6fdd009b2 100644
--- a/packages/frontend/src/pages/settings/navbar.vue
+++ b/packages/frontend/src/pages/settings/navbar.vue
@@ -42,6 +42,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<option value="top">{{ i18n.ts._menuDisplay.top }}</option>
 		<!-- <MkRadio v-model="menuDisplay" value="hide" disabled>{{ i18n.ts._menuDisplay.hide }}</MkRadio>--> <!-- TODO: サイドバーを完全に隠せるようにすると、別途ハンバーガーボタンのようなものをUIに表示する必要があり面倒 -->
 	</MkRadios>
+
+	<SearchMarker :keywords="['toggle', 'button', 'sub']">
+		<MkPreferenceContainer k="showNavbarSubButtons">
+			<MkSwitch v-model="showNavbarSubButtons">
+				<template #label><SearchLabel>{{ i18n.ts._settings.showNavbarSubButtons }}</SearchLabel></template>
+			</MkSwitch>
+		</MkPreferenceContainer>
+	</SearchMarker>
 </div>
 </template>
 
@@ -51,6 +59,8 @@ import MkRadios from '@/components/MkRadios.vue';
 import MkButton from '@/components/MkButton.vue';
 import FormSlot from '@/components/form/slot.vue';
 import MkContainer from '@/components/MkContainer.vue';
+import MkSwitch from '@/components/MkSwitch.vue';
+import MkPreferenceContainer from '@/components/MkPreferenceContainer.vue';
 import * as os from '@/os.js';
 import { navbarItemDef } from '@/navbar.js';
 import { store } from '@/store.js';
@@ -68,6 +78,7 @@ const items = ref(prefer.s.menu.map(x => ({
 })));
 
 const menuDisplay = computed(store.makeGetterSetter('menuDisplay'));
+const showNavbarSubButtons = prefer.model('showNavbarSubButtons');
 
 async function addItem() {
 	const menu = Object.keys(navbarItemDef).filter(k => !prefer.s.menu.includes(k));
diff --git a/packages/frontend/src/preferences/def.ts b/packages/frontend/src/preferences/def.ts
index 127ebeef0c..310c3856eb 100644
--- a/packages/frontend/src/preferences/def.ts
+++ b/packages/frontend/src/preferences/def.ts
@@ -329,6 +329,9 @@ export const PREF_DEF = {
 	makeEveryTextElementsSelectable: {
 		default: DEFAULT_DEVICE_KIND === 'desktop',
 	},
+	showNavbarSubButtons: {
+		default: true,
+	},
 	plugins: {
 		default: [] as Plugin[],
 	},
diff --git a/packages/frontend/src/ui/_common_/navbar.vue b/packages/frontend/src/ui/_common_/navbar.vue
index 88ce3a96e2..0f00a25d7a 100644
--- a/packages/frontend/src/ui/_common_/navbar.vue
+++ b/packages/frontend/src/ui/_common_/navbar.vue
@@ -65,7 +65,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	</svg>
 	-->
 
-	<div v-if="!forceIconOnly" :class="$style.subButtons">
+	<div v-if="!forceIconOnly && prefer.r.showNavbarSubButtons.value" :class="$style.subButtons">
 		<div :class="[$style.subButton, $style.menuEditButton]">
 			<svg viewBox="0 0 16 64" :class="$style.subButtonShape">
 				<g transform="matrix(0.333333,0,0,0.222222,0.000895785,21.3333)">
diff --git a/packages/frontend/src/utility/autogen/settings-search-index.ts b/packages/frontend/src/utility/autogen/settings-search-index.ts
index 64fe328478..7c2ec90dd8 100644
--- a/packages/frontend/src/utility/autogen/settings-search-index.ts
+++ b/packages/frontend/src/utility/autogen/settings-search-index.ts
@@ -587,6 +587,12 @@ export const searchIndexes: SearchIndexItem[] = [
 		path: '/settings/other',
 		icon: 'ti ti-dots',
 	},
+	{
+		id: 'pOot4giZs',
+		label: i18n.ts._settings.showNavbarSubButtons,
+		keywords: ['toggle', 'button', 'sub'],
+		path: '/settings/navbar',
+	},
 	{
 		id: '3icEvyv2D',
 		children: [