Windows 10 64bit
Firefox 83.0 64bit
When you first open a page you land on "All news". When you open any links in that section (Deals, Bundles, Freebies, or Giveaways), the hyperlink is removed from the section title, so you can't go back.
So let's say you click on "Deals", then on "Freebies", now you can't click back on "Deals" again. The same behavior is for the other links in that group. I haven't tested the rest of the page, so it might be occurring there as well.