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Considering that Chrome is my default browser and gmail my e-mail of choice and Blogger my choice for my Blog and Google sites what I use for my websites,
I hardly doubt that any firewall I use is blocking what you appear to be so paranoid about.
Worry about PRISM if you're worry about privacy.
Where do you think the NSA gets its information?
I think you have that backwards.
Who do you think is being forced to turn over it's information to the NSA.
Google is only one of those forced to turn over information therefore it really makes no difference
what you suse, none of the information is "private".