I have multiple connections from Firefox to subdomains of domain 1e100.net, which belongs to Markmonitor.com, according to Internic Whois. Sorry, I have little trust in a browser that makes such connections. If they add to Firefox functionality, for example, by detecting fraudulent web sites (I still don't know what they are actually for), this should be openly mentioned during Firefox setup (not hidden in an EULA), and there should be a confirmation for this, at least, when a third party is involved! I don't want any "business affilates" to track my surfing behavior without my consent!