Occasionally you might see a small window pop up that says "Yourblog.com wants to know your location. Yes or no?"
Many ad networks use your readers' general locations to decide which ads to show them. Generally, they depend on cookies to determine location, but if cookies are turned off, or if you are logged in to WordPress, you might occasionally see this small window designed to let the ad networks target ads based on your location.
This is standard across the ad industry and is not specific to AdThrive. It can be coming from any ad network on your site, but is typically not common unless cookies are turned off or you're logged into WordPress.