[clouddrover]

> Apparently they're WEBP images and my version of Firefox (version 64) doesn't support them

I loaded the page with Firefox 65 beta and all the images worked for me. The site doesn't seem to be serving WebP images to Firefox. When I checked all the image types via Page Info they were mostly JPEGs with some PNGs and one SVG image.

There's probably some other reason why the site is broken for you. Have you perhaps changed your browser's user agent string and so the site is giving you WebP images because it thinks they will work?

[Guest10928391]

It's a pretty standard Firefox installation (I also tried disabling uBlock and resetting my privacy settings), and I just confirmed the user agent looks normal, Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0. I think it broke when I moved last week from one EU country to another. Why that would make a difference, I don't know, but Adidas is now serving me WEBP images in Firefox 64 regardless of my browser settings, whether I clear cookies, use a private window, or choose different regional versions of the website.

So, I'm left scratching my head and using Chrome to browse the site.