newCircuitForBrowser(globalBrowser) {

     const browser = globalBrowser.selectedBrowser;

     const firstPartyDomain = getDomainForBrowser(browser);

     const { username, password } = this.#getSocksProxyCredentials(

       firstPartyDomain,

       browser.contentPrincipal.originAttributes.userContextId

           logger.info(

             "tor catchall circuit has reached its maximum lifetime. Rotating."

           );

         }

       }

       const { username, password } = this.#getSocksProxyCredentials(

    * @param {string?} domain The first-party domain to re-create the nonce for.

    * If empty or null, the catchall domain will be used.

    */

     if (!domain) {

       domain = CATCHALL_DOMAIN;

     }