Pages not loading correctly in Firefox

[AlanDogg]

I have been having a few similar issues with Firefox over the last 3 weeks or so. Links in yahoo news are opening into white lightbox with no content and now cannot sign into my gmail account. The family have a few different gmail accounts and when we click on to choose one for signing in nothing happens. All works well in other browser ie chrome, edge & opera. I'm using windows 10 and Firefox 53.0.2 32 bit. Any help would be much appreciated.

Thanks in advance

[DanRaisch]

Moving to Firefox Support.

Clear the browser cache (use menu path Tools->Options->Advanced->Network tab->click on "Clear Now" button.)
Delete any cookies relating to the site(s) involved (Tools->Options->Privacy->Firefox will "Use custom settings for History"->Show Cookies button).

If no improvement after the above, 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