diff --git a/extension/sidepanel/sidepanel.js b/extension/sidepanel/sidepanel.js
index 38992de..264d290 100644
--- a/extension/sidepanel/sidepanel.js
+++ b/extension/sidepanel/sidepanel.js
@@ -104,6 +104,7 @@ export async function refreshActiveTab() {
           }
         } catch (injectionErr) {
           // Tab may be a chrome:// or restricted URL
+          console.warn('Content script injection failed:', injectionErr);
         }
       }
     }