---
title: Add trusted sites using Firefox settings
description: Requirements
component: pingoneforenterprise
page_id: pingoneforenterprise:pingone_for_enterprise:p14e_add_trusted_sites_firefox_settings
canonical_url: https://docs.pingidentity.com/pingoneforenterprise/pingone_for_enterprise/p14e_add_trusted_sites_firefox_settings.html
revdate: December 9, 2021
section_ids:
  before-you-begin: Before you begin
  about-this-task: About this task
  steps: Steps
  result: Result
---

# Add trusted sites using Firefox settings

## Before you begin

Requirements

* Your AD Connect configuration in PingOne must have an `Authentication Type` value of either "Hybrid" or "Integrated".

## About this task

For seamless SSO with AD Connect, use these instructions to assign the Windows Server IIS host to the Mozilla Firefox client's list of trusted sites.

## Steps

1. In Firefox, enter "about:config"" in the URL address bar.

2. In the Search bar, enter "network.negotiate".

3. Double-click the entry **network.negotiate-auth.trusted-uris**, and enter the URL of the IIS host for AD Connect (for example, https\://www\.my-adconnect-host.com).

   |   |                                                                                                                                 |
   | - | ------------------------------------------------------------------------------------------------------------------------------- |
   |   | If you're using NLB, or another clustering solution, you will add the virtual cluster IP rather than an individual IIS host IP. |

4. Click **OK**. The URL for the IIS host is displayed as the value of `network.negotiate-auth.trusted-uris`.

## Result

The IIS host(s) for AD Connect should now be accessible from your Firefox clients.