@zombiepie: Yeah, it wasn't due to a copyright claim. I had that sorted out. Apparently, the video violated their "child safety policy," which is absurd. The automated email I received admitted that their automated flagging system may have errors and that I can appeal, which I did. Hopefully, it'll be up again.
This has to do with the Enhanced Tracking Protection in Firefox. If you go into Options > Privacy & Security and change the Standard setting to Strict and reload giantbomb.com, you'll see the Staff Twitter box break. The description under Strict actually states that some sites and content will break under this setting.
@rorie: Thanks. And yes, of course. I also threw this up on Twitter already. You can probably find it in your mentions because I tagged you, Giant Bomb, and the others. Or you can throw it onto your social media yourself. I don't mind.