Backed out changeset 171b129f5f93 (bug 928078) on the suspicion of this having caused frequent mochitest-bc oranges
Backed out changeset 52b1205696cd (bug 927974) on the suspicion of this having caused frequent mochitest-bc oranges
Backed out changeset a2ad798f4b90 (bug 915444) on the suspicion of this having caused frequent mochitest-bc oranges
Backed out changeset d93b0dd959b3 (bug 900566) on the suspicion of this having caused frequent mochitest-bc oranges

Landed on a CLOSED TREE
Back out e9f46c81c28e (bug 924463) on suspicion of being the One True cause of mass browser-chrome orange
CLOSED TREE
Merge m-c to a CLOSED TREE m-i