No B/W Color swap icon (Firefox)

This is weird. About a week or so ago, Giant Bomb no longer had it's black and white site options available up where they usually are. I hadn't been logged out or anything, but the site switched to white, and I don't know how to switch it back. I'm using Firefox when this is the case, but when I look at the site in Chrome, the color switcher is up next to my avatar in the corner of the page like usual. Any idea what's going on here?

It was moved to the dropdown options when you hover over your avatar quite a while ago. It's at the bottom beside the logout button.