--- a/mozhghooks/push_printurls.py
+++ b/mozhghooks/push_printurls.py
@@ -10,30 +10,32 @@ hgNameToRevURL = {
     'mozilla-central':  'mozilla-central/',
     'mozilla-inbound':  'integration/mozilla-inbound/',
     'services-central': 'services/services-central/',
     # Gecko release branches
     'mozilla-aurora':  'releases/mozilla-aurora/',
     'mozilla-beta':    'releases/mozilla-beta/',
     'mozilla-release': 'releases/mozilla-release/',
     'mozilla-esr24':   'releases/mozilla-esr24/',
+    'mozilla-esr31':   'releases/mozilla-esr31/',
     # Gecko B2G branches
     'mozilla-b2g30_v1_4':      'releases/mozilla-b2g30_v1_4/',
     'mozilla-b2g28_v1_3':      'releases/mozilla-b2g28_v1_3/',
     'mozilla-b2g28_v1_3t':     'releases/mozilla-b2g28_v1_3t/',
     'mozilla-b2g26_v1_2':      'releases/mozilla-b2g26_v1_2/',
     'mozilla-b2g26_v1_2f':     'releases/mozilla-b2g26_v1_2f/',
     'mozilla-b2g18':           'releases/mozilla-b2g18/',
     'mozilla-b2g18_v1_1_0_hd': 'releases/mozilla-b2g18_v1_1_0_hd/',
     # Thunderbird branches
     'comm-central': 'comm-central/',
     'comm-aurora':  'releases/comm-aurora/',
     'comm-beta':    'releases/comm-beta/',
     'comm-release': 'releases/comm-release/',
     'comm-esr24':   'releases/comm-esr24/',
+    'comm-esr31':   'releases/comm-esr31/',
     # Try repos
     'try':              'try/',
     'try-comm-central': 'try-comm-central/',
 }
 
 # Project branches that are in active use
 hgNameToRevURL.update({
     'alder':   'projects/alder/',