diff --git a/Casks/firefox-ux.rb b/Casks/firefox-ux.rb
new file mode 100644
index 000000000..5641c8f4b
--- /dev/null
+++ b/Casks/firefox-ux.rb
@@ -0,0 +1,7 @@
+class FirefoxUx < Cask
+  url 'https://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-ux/firefox-29.0a1.en-US.mac.dmg'
+  homepage 'http://people.mozilla.org/~jwein/ux-nightly/'
+  version '29.0a1'
+  sha1 'be5c293d961d40d2c3aa5f6fcd3d973c68667985'
+  link 'FirefoxUX.app'
+end