20170717030201
https://hg.mozilla.org/releases/comm-esr52/rev/4f2aa157bba2a71b32aad7b2096b1c52745c3ce0
https://hg.mozilla.org/releases/mozilla-esr52/rev/c41f37d913e205e08dac3f1a1f530d37c6b34e72