Works in UX Nightly 25.0a1! Rated 5 out of 5 stars
So far, so good. Thanks to Status-4-Evar, UX Nightly 25.0a1 isn't so bad now.
I hope that Status-4-Evar still works when UX Nightly becomes Firefox 25 (meaning, when UX Nightly goes through the process of becoming Nightly, Aurora, Beta and then finally Firefox 25).