Safari / FireFox incognito won't load logo and buttons below awesome bar

Safari / FireFox incognito won’t load logo and buttons below awesome bar. This not the case in all browsers. Found problem in the following browsers:

  1. Safari (version unknown, reported by a client)
  2. FireFox (version 126 windows, only on incognito)

However firefox version 125 Ubuntu incognito has no problems. I used this browser after issue was reported

if you login with system manager account and logout and try to login with normal user then the buttons can be clicked and logo is visible

If anyone could help in this issue please help.