I see this has been a problem for years on and off with people. I have been trying for a year and have tried disabling any adblocker from Firefox. I still get the blank screen with just side and bottom bars when trying to view my bill. I can use Edge and view the bill without a problem with the adblockers on, so how about making this site work with Firefox, like very other utility, banking, or retail supplier does. This is a not tech rocket science surely.