In order to utilize the in-browser controls provided by the CA, all applicants who are attempting to generate a code signing certificate must use Firefox as their default browser. If this browser is not properly used, the applicant will receive an Error Message. Due to the amazing in-browser controls provided by the CA, applicants who use Firefox as their browser will be able to automatically generate the CSR and store the private key within Firefox’s file system. This unique private key will automatically be pulled by the corresponding certificate during the installation/download process.