Comment 2 for bug 1278589

So the problem with client.ini is that last time we made it writeable we ended up with quite a mess on upgrades, do we really want to repeat the experience?

The advantage of my proposed solution (using = 0) is that this wouldn't need any extra writeable file, would use the already existing channel.ini file which is already entirely owned by the server and this wouldn't require any server side change since most people without https already set https_port = 0 in etc/config on the server (which then gets written into channel.ini).