diff --git a/web/packages/extension/assets/_locales/ja/messages.json b/web/packages/extension/assets/_locales/ja/messages.json
index e1b7aa9df..827215a5f 100644
--- a/web/packages/extension/assets/_locales/ja/messages.json
+++ b/web/packages/extension/assets/_locales/ja/messages.json
@@ -41,6 +41,12 @@
     "settings_advanced_options": {
         "message": "詳細設定"
     },
+    "settings_reset": {
+        "message": "設定をリセット"
+    },
+    "settings_reset_confirm": {
+        "message": "Ruffleの設定をデフォルトの状態に復元します。よろしいですか？"
+    },
     "status_init": {
         "message": "現在のタブを読み込み中..."
     },
diff --git a/web/packages/extension/assets/_locales/zh_CN/messages.json b/web/packages/extension/assets/_locales/zh_CN/messages.json
index 7d2200acc..2966f2985 100644
--- a/web/packages/extension/assets/_locales/zh_CN/messages.json
+++ b/web/packages/extension/assets/_locales/zh_CN/messages.json
@@ -41,6 +41,12 @@
     "settings_advanced_options": {
         "message": "高级选项"
     },
+    "settings_reset": {
+        "message": "重置设置"
+    },
+    "settings_reset_confirm": {
+        "message": "是否确实要将 Ruffle 设置恢复为原始默认值？"
+    },
     "status_init": {
         "message": "正在读取当前标签页…"
     },