Continuing Problem using websites

I am having a continuing problem using fire fox to access websites. I go to a site to use one of their tools and have issues using or logging in to their site. I will go to a site where an accept cookies banner should pop up to continue and nothing pops up so I can't continue. I have tried the disable Enhanced Protection with no change in results. If I use Duck Duck Go, or Edge everything works. Firefox is my default browser, but it appears that you have made a change that is now impacting my ability to use websites. Sometimes things work if I go into Troubleshooting mode, but I can't determine where the problem is. I use Norton as my anti-virus and internet security and have turned it off as part of my troubleshooting but that does not help. Please provide guidance. Thank you.