diff --git a/platform/mv3/extension/js/develop.js b/platform/mv3/extension/js/develop.js
index c671384aa..bb7c17383 100644
--- a/platform/mv3/extension/js/develop.js
+++ b/platform/mv3/extension/js/develop.js
@@ -584,6 +584,9 @@ class Editor {
             stream.next();
             return null;
         },
+        languageData: {
+            commentTokens: { line: '#' },
+        },
     };
 
 }