title: Let's Encrypt certificate not trusted on Firefox
body: <p>I just added the certificate in IIS 8 (Windows Server 2012) using letsencrypt-win-simple.V1.9.1 . There are no problems in Google Chrome but in Firefox the connection is not trusted.</p>
  
  <p>I followed this tutorial : <a href="https://weblog.west-wind.com/posts/2016/feb/22/using-lets-encrypt-with-iis-on-windows#TheEasyWay:LetsEncrypt-Win-Simple" rel="nofollow noreferrer">https://weblog.west-wind.com/posts/2016/feb/22/using-lets-encrypt-with-iis-on-windows#TheEasyWay:LetsEncrypt-Win-Simple</a> .</p>
  
  <p><a href="https://i.stack.imgur.com/0aETf.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0aETf.png" alt="enter image description here"></a></p>