diff --git a/core/messenger.js b/core/messenger.js
index 1e6487c0..870ce7b9 100644
--- a/core/messenger.js
+++ b/core/messenger.js
@@ -44,15 +44,6 @@ messenger._handleMessageReceived = function (message, sender, sendResponse) {
             sendResponse({'value': stateManager.tabs[value].injections});
             return MessageResponse.SYNCHRONOUS;
 
-        case 'tab:inject':
-            chrome.scripting.executeScript(value, {
-                'code': `window.addEventListener('load', () => {
-                    document.getElementById('domain').value = '${message.url}';
-                });`,
-                'runAt': 'document_idle'
-            });
-            return MessageResponse.SYNCHRONOUS;
-
         case 'domain:fetch-is-allowlisted':
             sendResponse({'value': Boolean(helpers.checkAllowlisted(value, requestAnalyzer.allowlistedDomains))});
             return MessageResponse.SYNCHRONOUS;
diff --git a/manifest.json b/manifest.json
index c0118899..1fb040f8 100644
--- a/manifest.json
+++ b/manifest.json
@@ -25,8 +25,7 @@
     "storage",
     "webNavigation",
     "webRequest",
-    "webRequestBlocking",
-    "scripting"
+    "webRequestBlocking"
   ],
 
   "host_permissions": [
diff --git a/pages/popup/popup.js b/pages/popup/popup.js
index 5cff400f..07d95f1b 100644
--- a/pages/popup/popup.js
+++ b/pages/popup/popup.js
@@ -503,8 +503,10 @@ popup._onTestingUtilityLinkClicked = function (ev) {
         chrome.tabs.create({
             'url': Links.LOCALCDN_TEST_WEBSITE,
             'active': ev.button === 0,
-        }, function (tab) {
-            popup._injectDomain(tab.id);
+        }, function () {
+            setTimeout(function () {
+                popup._close();
+            }, 200);
         });
     }
 };
@@ -560,19 +562,6 @@ popup._onStatisticsButtonClicked = function (ev) {
     }
 };
 
-popup._injectDomain = function (tabId) {
-    let message = {
-        'topic': 'tab:inject',
-        'value': tabId,
-        'url': popup._targetTab.url
-    };
-
-    chrome.runtime.sendMessage(message);
-    setTimeout(function () {
-        popup._close();
-    }, 200);
-};
-
 popup._onOptionsButtonClicked = function () {
     chrome.runtime.openOptionsPage();
     return window.close();