diff --git a/src/_locales/en/messages.json b/src/_locales/en/messages.json
index 4fc6037c..4079ffb8 100644
--- a/src/_locales/en/messages.json
+++ b/src/_locales/en/messages.json
@@ -198,20 +198,20 @@
     "message": "Dark Theme"
   },
   "detachTabFromGroup_menu": {
-    "message": "&Detach Tab from Group",
+    "message": "Detach Tab from G&roup",
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&D)"
+        "example": "(&R)"
       }
     }
   },
   "detachTabsFromGroup_menu": {
-    "message": "&Detach Tabs from Group",
+    "message": "Detach Tabs from G&roup",
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&D)"
+        "example": "(&R)"
       }
     }
   },
@@ -267,7 +267,7 @@
     }
   },
   "groupSameDomainTabs_menu": {
-    "message": "Group Same Do&main Tabs",
+    "message": "Group Same &Domain Tabs",
     "placeholders": {
       "key": {
         "content": "$1",
diff --git a/src/_locales/fa/messages.json b/src/_locales/fa/messages.json
index 0c91c2ad..529a1afa 100644
--- a/src/_locales/fa/messages.json
+++ b/src/_locales/fa/messages.json
@@ -202,7 +202,7 @@
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&D)"
+        "example": "(&R)"
       }
     }
   },
@@ -211,7 +211,7 @@
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&D)"
+        "example": "(&R)"
       }
     }
   },
@@ -271,7 +271,7 @@
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&M)"
+        "example": "(&D)"
       }
     }
   },
diff --git a/src/_locales/ja/messages.json b/src/_locales/ja/messages.json
index fc3600c4..16630550 100644
--- a/src/_locales/ja/messages.json
+++ b/src/_locales/ja/messages.json
@@ -202,7 +202,7 @@
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&D)"
+        "example": "(&R)"
       }
     }
   },
@@ -211,7 +211,7 @@
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&D)"
+        "example": "(&R)"
       }
     }
   },
@@ -271,7 +271,7 @@
     "placeholders": {
       "key": {
         "content": "$1",
-        "example": "(&M)"
+        "example": "(&D)"
       }
     }
   },
diff --git a/src/mjs/menu-items.js b/src/mjs/menu-items.js
index a76565a2..83de1e95 100644
--- a/src/mjs/menu-items.js
+++ b/src/mjs/menu-items.js
@@ -436,7 +436,7 @@ export default {
       },
       [TAB_GROUP_DOMAIN]: {
         id: TAB_GROUP_DOMAIN,
-        title: i18n.getMessage(`${TAB_GROUP_DOMAIN}_menu`, '(&M)'),
+        title: i18n.getMessage(`${TAB_GROUP_DOMAIN}_menu`, '(&D)'),
         type: 'normal',
         contexts: ['tab'],
         viewTypes: ['sidebar'],
@@ -445,7 +445,7 @@ export default {
       },
       [TAB_GROUP_DETACH]: {
         id: TAB_GROUP_DETACH,
-        title: i18n.getMessage(`${TAB_GROUP_DETACH}_menu`, '(&D)'),
+        title: i18n.getMessage(`${TAB_GROUP_DETACH}_menu`, '(&R)'),
         type: 'normal',
         contexts: ['tab'],
         viewTypes: ['sidebar'],
@@ -454,7 +454,7 @@ export default {
       },
       [TAB_GROUP_DETACH_TABS]: {
         id: TAB_GROUP_DETACH_TABS,
-        title: i18n.getMessage(`${TAB_GROUP_DETACH_TABS}_menu`, '(&D)'),
+        title: i18n.getMessage(`${TAB_GROUP_DETACH_TABS}_menu`, '(&R)'),
         type: 'normal',
         contexts: ['tab'],
         viewTypes: ['sidebar'],