Functionality Issues

[Sander77]

Hello everyone,

Since maybe 10 days or so I'm having functionality issues with FF on certain websites, the following link http://www.gigabyte.us/Motherboard/GA-A ... -K5-rev-10 displays the page as below where as Chrome and Edge are both fine.
> https://s13.postimg.org/5sq0h287r/Firefox_Fail.png

An other issue is that I can't log out of Gmail anymore, I can click on the icon int he top right corner (see image below) and I just won't get any option to sign out. On some other pages I can not click the cookie warning. I tried reinstalling with FF default settings but the problems persist. Does anyone know about these issues and has a solution? Thank you.
https://s13.postimg.org/65henhy9z/Gmail_1.png

[DanRaisch]

Have you tried starting Firefox in Mozilla Safe Mode? http://kb.mozillazine.org/Safe_mode
If no improvement using Safe Mode, do you have the same problem if you create a new profile and test it with no extensions or non-default themes installed?
http://kb.mozillazine.org/Profile_Manager
and
http://kb.mozillazine.org/Creating_a_ne ... on_Windows

Also see http://kb.mozillazine.org/Standard_diagnostic_-_Firefox

[therube]

On my end, as the page begins to load, it displays a very brief area of white, like in your shot.
It appears that the white is there, but then is overlayed by the expected content.