--- a/MozillaFirefox/MozillaFirefox.spec	Wed Mar 22 08:30:12 2017 +0100
+++ b/MozillaFirefox/MozillaFirefox.spec	Wed Mar 22 08:35:22 2017 +0100
@@ -20,7 +20,7 @@
 # changed with every update
 %define major 52
 %define mainver %major.0.1
-%define update_channel release
+%define update_channel esr52
 %define releasedate 20170317000000
 
 # PIE, full relro (x86_64 for now)