I figured it out! (this post is a lot longer than it needs to be, but you'll see why I typed so much lol)
This can only be done in NoScript by choosing "Forbid wfrcdn.com" ("cdn" stands for
Content Delivery Network). I tried blocking it by adding it to my Hosts file instead using "127.0.0.1 wfrcdn.com", but it didn't work. So with it blocked in NoScript, the first 5 boxes on the page you linked me to show up and the rest are blank. Right above the first blank box is a text link that says "show all images" (this is easy to miss because it's just plain text and it's not very big). You can click blank boxes and they still work, but of course it helps to see what you're clicking instead of having to read each one. lol Anyway, when you click one of those boxes, the next page shows up with only the first 12 boxes showing and the rest are blank. Underneath these first 12 boxes is a nice button that you will
not be able to miss that reads "SHOW ALL IMAGES" (in all caps lol). When you click this, it just loads the blank boxes and that's it! I mean, the best part is no extra content, not even if you scroll down a million times! This is because wfrcdn.com is blocked.
Y'know, I agree with you: that extra content is stupid and it results in unrelated content being shown. lol However, it looks like they're just trying to make it more convenient so that you don't have to go back to that page you linked me to in order to see what else is on there, but the stupid thing is that you have to keep scrolling and scrolling and scrolling and scrolling just to see the others - and the worst part is the contents of the others are loaded too. It just makes me want to e-mail them with something like "what were you thinking?!" lol I mean, I'd much rather see nothing but what I clicked on and then be forced to click back to go look at the other boxes. Good grief they're stupid. lol
Anyway, if you didn't have NoScript before, then you'll need to know something: every page you visit that your current installation of NoScript has not been exposed to yet will need to have its permissions set exactly like you did for Wayfair.com (it's always a "set it and forget it" type of thing). However, I like this because then I get to only load what's necessary in order to get the page to work. You will find that almost every site has unnecessary things that do not need to be allowed by NoScript in order to function at 100%. It's almost hilarious.
There is a file or two in the default profile folder for Firefox that keeps everything for NoScript. So, if you copy/paste the entire contents of the default profile folder to a safe place, then you get to format, start over, install Firefox, open Firefox, close Firefox, copy/paste the files you copied before into the new default profile folder, open Firefox, and then be back up and running like you never formatted. As far as NoScript is concerned, all of your page permissions will still be there including any customizations you made to it. You won't have to start over, not for anything in Firefox. Not even about:config tweaks. You'll even still have your Extensions! You'll have to reinstall your plugins though because those get installed into Windows, not into Firefox like the Extensions.
So yeah, NoScript!