diff -up ./etc/gimprc.orig ./etc/gimprc
--- ./etc/gimprc.orig	2017-12-30 17:09:49.848209044 +0200
+++ ./etc/gimprc	2017-12-30 17:10:03.739688465 +0200
@@ -665,7 +665,7 @@
 # Sets the browser used by the help system.  Possible values are gimp and
 # web-browser.
 # 
-# (help-browser gimp)
+(help-browser web-browser)
 
 # When enabled, the online user manual will be used by the help system.
 # Otherwise the locally installed copy is used.  Possible values are yes and