It's only a small thing, but "Set an Alert" in Balloon Hunt leads to the Ring Toss game.
It's been doing that since yesterday afternoon, although I hadn't played it much before then.
This is the link.
Setting an alert in Ring Toss puts you back at the Ring Toss main page. All the other "set an alert" functions don't move you off the page you're on, but Ring Toss does.
This is the Ring Toss link.
Sorry to be a bother.
Also, all the carnival alerts double up in the event screen. So did the Zapper this morning.
I personally use Firefox 26.0 (minus extensions except Java and Shockwave). My OS is Windows 7. It's fully updated - indeed, it just did that a minute ago.