To get a signature with the AutoSignature application using a centralized certificate from the Firefox browser on a macOS operating system, follow these steps:
As a preliminary step, ensure that you have previously configured Fortress in Firefox as it is done in Download Viafirma Fortress Desktop for Mac OS.
Download the Viafirma Fortress pcks#11 module from the preferences (Settings) of the Firefox browser. If you don’t know how to do it, access from the settings to the Privacy and Security options, and from there , in the Certificates section select Security devices.
Move the libfortress_pkcs11.dylib library from the Downloads folder (/Users/xxx/Downloads) to the path where we need it to use Autosignature (/Users/xxxx). This step is critical to getting Autosignature to locate the certificate.
Go back to Security devices, but this time select Load.
A new window will open. The module name is: Fortress PKCS#11. Press the Browse button and select the libfortress_pkcs11.dylib file you downloaded.
Finally, open AutoSignature and make a signature using the certificate hosted in the Firefox certificate store.