pkcs11.isModuleInstalled()

Checks whether the named PKCS #11 module is currently installed in Firefox.

This is an asynchronous function that returns a Promise.

name

string. Name of the module to check.

A Promise that will be fulfilled with true if the module is installed, false otherwise.

If the module an error occurs, the promise will be rejected with an error message.

Checks whether the module named "pkcs11_module" is installed:

function logIsInstalled(isInstalled) {
  console.log(`Module is installed: ${isInstalled}`);
}

browser.pkcs11.isModuleInstalled("pkcs11_module").then(logIsInstalled);