Originally Posted by Zyber

I used to think like this - and I also avoid Google Analytics for that very reason.

However, by coincidence I found out that Google actually knows much more about our traffic, than they should.

A default setting in Firefox makes the browser contact Google in the background for every page we visit.

In Firefox Options -> Security you find these two options:
"Block reported attack sites"
"Block reported web forgeries"

These two useful services query Google servers to protect us from harmful attack sites.

In about:config they are found under "safebrowsing".