Vivaldi under Windows

Speed, security and privacy

Vivaldi under Windows

The browser is available for different platforms (Android, macOS and Windows). Here we look at the settings under Microsoft Windows.

To access pages with Vivaldi that require "client authentication" with a certificate, a corresponding certificate must be imported. In the example we want to access the URL "" (the address does not exist).

If you have not imported a certificate, the error message "400 Bad Request - No requirred SSL certificate was sent" or "403 Forbidden" will appear when the address is accessed.

Importing certificates

Vivaldi uses the Windows certificate store. Read in the article "Certificate management under Windows" how to import a certificate under Windows. All necessary steps are described there.

Opening the page (with imported certificate)

If the certificate is installed ...

... Vivaldi also offers the certificate for authorization.

The website will be displayed as expected.