diff --git a/SfeduHelper/service_worker.js b/SfeduHelper/service_worker.js
index bd24f80..20ab478 100644
--- a/SfeduHelper/service_worker.js
+++ b/SfeduHelper/service_worker.js
@@ -1,13 +1,7 @@
 chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
     // Получить URL текущей вкладки
-    var url = tab.url;
-    var manifestData = chrome.runtime.getManifest();
-    var enabled = false;
-    manifestData.content_scripts[0].matches.forEach((element) => {
-        console.log(element + " " + url.includes(element));
-        enabled = url.includes(element)
-    });
-    if (enabled) {
+    var url = tab.url; 
+    if (url.match(/https:\/\/grade\.sfedu\.ru\/*/)) {
         chrome.action.setIcon({ path: {
             "64" : "icons/iconEn64.png",
             "128" : "icons/iconEn128.png"