Might also be a router glitch I am told? There are NO PROBLEMS loading or using any other websites that we have noticed. Only Facebook and related pages we attempt to navigate to from facebook. We get the never-ending spinning circle trying to load. With the https:// at the beginning of profile and feed pages, I can comment on posts, but cannot navigate away from either page without crashing. Not enough skill to figure out how to handle this.
Hope this doesn't get taken as a reply and skipped over as answered.