Well Google Analytics is essentially used by the sites themselves to plot the activity/traffic/navigation through their site, not specifically for Google.
So do you mean that this is your site that you have installed the google-analytics on and you can't view the stats ?
I have never found an issue with the webrep enabled, generally there are few sites that I even allow google-analytics in the firefox RequestPolicy add-on, so in most cases as a normal browser you don't need google-analytics just to browse the site.
That said though, I currently have it disabled/uninstalled in the avast free 8.0.1484 public beta as it messes with the window layout. Though some sites may insist on its use.