diff --git a/_locales/ca/messages.json b/_locales/ca/messages.json
index d44063b..64ad764 100644
--- a/_locales/ca/messages.json
+++ b/_locales/ca/messages.json
@@ -43,6 +43,10 @@
     "message": "Mostra un enllaç \"historial de publicacions\" als perfils d'usuari.",
     "description": "Feature checkbox in the options page"
   },
+  "options_batchduplicate": {
+    "message": "Afegeix l'opció per duplicar diversos fils alhora a la llista de fils de la Consola de la Comunitat.",
+    "description": "Feature checkbox in the options page"
+  },
   "options_save": {
     "message": "Desa",
     "description": "Button in the options page to save the settings"
@@ -54,5 +58,29 @@
   "inject_previousposts": {
     "message": "Historial de publicacions",
     "description": "Link shown in a user profile (in TW and the Community Console) which points to a search showing the user's posts and messages"
+  },
+  "inject_duplicatebtn": {
+    "message": "Duplicar fils",
+    "description": "Tooltip of the 'duplicate treads' icon shown when selecting multiple threads in the Community Console."
+  },
+  "inject_duplicateinto": {
+    "message": "Duplicar a:",
+    "description": "Label for the text field in which the user has to enter the thread they want to duplicate into."
+  },
+  "inject_duplicateinto_placeholder": {
+    "message": "Introdueix la URL de la Consola de la Comunitat",
+    "description": "Placeholder for the URL field."
+  },
+  "inject_duplicate_cancel": {
+    "message": "Cancel·lar",
+    "description": "Button to cancel the duplication process."
+  },
+  "inject_duplicate_confirm": {
+    "message": "Duplicar",
+    "description": "Button to duplicate all the threads."
+  },
+  "inject_duplicate_progress": {
+    "message": "Progrés",
+    "description": "Title for a progress bar which indicates how many threads were duplicated."
   }
 }
\ No newline at end of file