diff --git a/src/utils/extension.js b/src/utils/extension.js
index 46aedd34c..a023b17d5 100644
--- a/src/utils/extension.js
+++ b/src/utils/extension.js
@@ -23,7 +23,7 @@ let currentScriptSrc;
 
 export default {
   getExtensionId() {
-    if (currentScriptSrc) {
+    if (currentScriptSrc && !currentScriptSrc.startsWith('moz-extension://')) {
       return null;
     }