diff --git a/platform/mv3/extension/js/scripting-manager.js b/platform/mv3/extension/js/scripting-manager.js
index 1ca2528ea..d387622e1 100644
--- a/platform/mv3/extension/js/scripting-manager.js
+++ b/platform/mv3/extension/js/scripting-manager.js
@@ -495,11 +495,12 @@ function registerScriptlet(context, scriptletDetails) {
 
 /******************************************************************************/
 
-async function registerInjectables(origins) {
-    void origins;
-
+async function registerInjectables() {
     if ( browser.scripting === undefined ) { return false; }
 
+    if ( registerInjectables.barrier ) { return true; }
+    registerInjectables.barrier = true;
+
     const [
         filteringModeDetails,
         rulesetsDetails,
@@ -548,6 +549,8 @@ async function registerInjectables(origins) {
             .catch(reason => { console.info(reason); });
     }
 
+    registerInjectables.barrier = false;
+
     return true;
 }