Thanks everyone. I found the culprit. It was due to my using an old
version of Adblock Plus. The one-by-one disabling of add ons nailed it.
:-)


Bill in Co wrote:
I'm trying to open the Ssmsung website, but what happens is it briefly
loads but then immediately reverts to a blank web page (with no error
messages) unless I hit the Stop key, which will freeze it (so at least I
can see some content), but this is useless. This problem does not
happen in Pale Moon, interestingly enough.

Here is the URL:

https://www.samsung.com/us/

I have tried disabling most of the usual suspects and some other ideas,
and even tried a previous version of FF, but still it's no go. Does
anybody else have this problem on this website with FF? (I'm using the
latest version of FF for Windows XP, 52.9.0 too).