While sheriffing yesterday, I was a bit confused when dbaron asked if I was looking into all the orange. The tree (http://tinderbox.mozilla.org/Firefox/) looked mostly green, except for a handful of earlier Talos oranges. So, yadda yadda, it turns out that most of the test boxes report to a separate tinderbox tree now — http://tinderbox.mozilla.org/Firefox-Unittest/. There are similar splits for the 3.6 and 3.5 trees.
This was probably announced somewhere, but 3 other developers also didn’t know this was the case. So, I figured a blog post was in order.