How to import a valid copy of your electronic certificate

Windows-Import copy of the certificate in Google Chrome

To import an electronic certificate to the browser, you must have a valid copy of it. The icon of a valid copy will be an open envelope with a certificate peeping out and a key, and the extension .pfx or. p12. If you can't see the extension, right click on the certificate icon and go to "Properties".

In Google Chrome, go to the "Customise and control Google Chrome" menu, at the end of the address bar identified with the three-point icon and go to "Settings."

Click on "Privacy and security" in the left margin, then go to "Security" and click on "Manage certificates" at the bottom.

Click on the "Import" button in the "Personal" tab.

The "Import Assistant" opens below. Click "Next."

Click "Browse" to go to the route where the copy of your certificate has been saved.

Select the .pfx or. p12 file and click "Open." It is important to choose the file type "Exchange of personal information" in the drop-down menu in order to locate the copy. Click "Next" again.

If the copy was made with a password, you must enter it (if you don't ask for one, you can leave it blank) and it is very important to mark it as well the box "Mark this password as exportable..." so that if you need to obtain a backup copy of the certificate you can export the private password. Click "Next" again.

Check that the option "Automatically select the certificate warehouse..." is marked. Click "Next" again and, finally, "Finish."

If the import has been correct, the message "Import was successfully completed" or "Import was completed correctly" will appear according to the browser version and when the browser requests identification, the certificate will appear in the selection window for authentication or signature.

If the copy of the certificate is not valid (the icon is a green certificate and there is no key; The file extension is .cer) is because when exporting it, the box "Exporting the private key" was not marked, which is the personal information that the certificate contains and without which it is not possible to sign. If the copy is not valid, it will be installed in the "Other persons" tab instead of in the "Personal" tab and it would not be valid to access the procedures of the Tax Agency's website.

If the certificates do not allow you to work normally, it will not be possible to make a correct copy or request renewal via the Internet. If you do not have a valid copy, you will have to request a new certificate.