Mayayana,

For what it's worth, I always remove all URLs
in about:config.

Yeah, that was pretty-much what I did too (though I prepended all URLs with
a "no place like home" IP, allowing me to see when it calls home, and with
what).

But take care when creating a new profile though, as you than need to do all
of that again*. And you better do that while being offline, otherwise
you're too late. :-)

*you can change the default settings file in the browser\omni.ja lib though.

Also, it will not stop those NewTab tiles from connecting to all stored URLs
(needs some more tampering of that omni.ja).

But I wanted to se if I could get it to behave before judging it though.
And that ment that I tried to use its own settings to get it to stop to call
out. It turns out I can stop quite a few, but definitily not all that way.
And than there is the brain-dead "no matter if you use it or not, we will
retrieve it nonetheless" NewTab shennigans ofcourse.

I'm using FF52 with a custom homepage. I'm
not aware of it calling home to anything.

I'm also using a custom homepage. But *every time* I start FF the first
thing it tries to do is to connect to both locations as well as tiles.
Even though I've set geo.enabled to false, and NewTab to a blank page.

Why don't you have doubleclick in your HOSTS file?

I did not think I would need to, not with RequestPolicy installed. But
yes, I did as soon as I noticed. Though by deleting the contents of
NewTab.js (inside the browser/omni.ja file) it will not try to call out that
way anymore (actually, I replaced it with a few lines to display my custom
homepage again).

But actually thats pretty-much the problem: Instead of having a
well-behaving browser it "just does stuff" and I have to try to box it in.
I don't know about you, but to me that feels like having a guest you cannot
trust not to ransack your house. :-(

I think I would love it to have a browser which only visits the webpages I
direct it too and the resources it contains - filterable (by plugins)
ofcourse. Nothing more, nothing less. You know, a *well-behaved* FF.
Yeah, I'll just dream on. :-)

Regards,
Rudy Wieser