Hi, We have firefox 56.0.2 on all of our server 2008 r2 bar one which is version 54. When a user tries to browse to a webpage they will only see a blank web page. Internet explorer works with no issues. I have check the proxy setting ,completely removed firefox including registry files, numerous restarts, disabled the anti virus, monitored firewall, reset user profiles and downgraded back to 54 which was working before the update. even after all that I still cannot get any web pages to show. I am not getting any errors within firefox or event viewer just a blank page. I had this before on standalone desktops and a simple reinstall solves the issue. If anyon has a solution, I would be very grateful