SSL Symbol not clearing in Firefox

Hi! I noticed this issue about a week or so ago and contacting the hosting provider. They could not reproduce this issue; however, it is an ongoing issue in more than one location from my end. It is not an image issue. The only thing I could think of is perhaps the htaccess file. Webassist helped with editing this file and it worked as it should up to this point. I am uploading both htaccess files; one for before WA assistance and the one WA edited. I would like to know if you see anything that could be the cause for this.
You can go to the log in page to see if you have the same Firefox warning symbol: https://www.ecigaretteimpressions.com/accountaccess/login.php
I have uploaded both htaccess files although they aren't neat and tidy as on the server.
Thank you so much for your help!