You may experience the Something went wrong error when the Avast SecureLine VPN browser extension fails to communicate with the Avast SecureLine VPN app.

To resolve this error, you must first uninstall, then reinstall the Avast SecureLine VPN browser extension. Refer to the sections below for detailed instructions.

Uninstall the Avast SecureLine VPN browser extension

To uninstall the Avast SecureLine VPN browser extension, follow the relevant instructions for your browser below:

Google Chrome

1. Open Google Chrome.
2. In the top-right corner of the browser, click the Extensions icon and select Manage extensions.
3. Under SecureLine VPN, click Remove.
4. In the pop-up window that appears, click Remove.

The Avast SecureLine VPN browser extension is uninstalled.

Microsoft Edge

1. Open Microsoft Edge.
2. In the top-right corner of the browser, click the Extensions icon and select Manage extensions.
3. Under SecureLine VPN, click Remove.
4. In the pop-up window that appears, click Remove.

The Avast SecureLine VPN browser extension is uninstalled.

Mozilla Firefox

1. Open Mozilla Firefox.
2. In the top-right corner of the browser, click the Extensions icon and select Manage extensions.
3. Next to Avast SecureLine VPN, click ⋮ More options (the three dots) icon and click Remove.
4. In the pop-up window that appears, click Remove.

The Avast SecureLine VPN browser extension is uninstalled.

Install the Avast SecureLine VPN browser extension

To install the Avast SecureLine VPN browser extension, refer to the following article: Installing the Avast SecureLine VPN browser extension.

If the issue persists, uninstall and reinstall the Avast SecureLine VPN application on your Windows device. For detailed instructions, refer to the following articles:

• Standalone Avast SecureLine VPN:
  • Uninstalling Avast SecureLine VPN
  • Installing Avast SecureLine VPN
  • Activating Avast SecureLine VPN
• Avast One - Avast SecureLine VPN:
  • Uninstalling Avast One
  • Installing and Activating Avast One apps

Updated on: 10/06/2026