This method of checking your store's pixel requires that you use the Chrome web browser and install Facebook Pixel Helper (a Chrome extension).
Install the Facebook Pixel Helper on Chrome:
Add to your Chrome browser the Facebook Pixel Helper in the search bar.
Click Add extension in the pop-up.
Check for your Pixel
Navigate to your sore and click the extension icon. Check the pop-up to see any Facebook pixels found on that page. The Pixel ID will be clearly indicated.
2. If you see a notification that no pixels were found on your site or that there's an error, you can troubleshoot your error messages.