diff --git a/MantisHelperPlugin/background.js b/MantisHelperPlugin/background.js
index c9fc69d..1f0e8d7 100644
--- a/MantisHelperPlugin/background.js
+++ b/MantisHelperPlugin/background.js
@@ -1,20 +1,21 @@
-browser.runtime.onInstalled.addListener(() => {
-  browser.contextMenus.create({
+chrome.runtime.onInstalled.addListener(() => {
+  chrome.contextMenus.create({
     id: 'openInMantis',
     title: 'Open in Mantis',
     contexts: ['selection']
   });
 });
 
-browser.contextMenus.onClicked.addListener(async (info) => {
+chrome.contextMenus.onClicked.addListener((info) => {
   if (info.menuItemId === 'openInMantis') {
     let selectedText = info.selectionText;
     if (selectedText.startsWith('#')) {
       selectedText = selectedText.substring(1);
     }
-    const result = await browser.storage.sync.get(['customUrl']);
-    const fixedUrl = result.customUrl || 'https://example.com/view.php?id=';
-    const completeUrl = `${fixedUrl}${selectedText}`;
-    await browser.tabs.create({ url: completeUrl });
+    chrome.storage.sync.get(['customUrl'], (result) => {
+      const fixedUrl = result.customUrl || 'https://example.com/view.php?id=';
+      const completeUrl = `${fixedUrl}${selectedText}`;
+      chrome.tabs.create({ url: completeUrl });
+    });
   }
 });