20170509142926
https://hg.mozilla.org/releases/comm-esr52/rev/e8e7ca5a9a47d6a13e5e70a018e4d68d6d2fc715
https://hg.mozilla.org/releases/mozilla-esr52/rev/9e5aaa9ce635f1e44c7f2a3972e0362973c4115b