Google toolbar came first. Slipped in a Google search box on everyone's browser in exchange for blocking Google's competitors' popup ads (Google didn't use pop

Google toolbar came first. Slipped in a Google search box on everyone's browser in exchange for blocking Google's competitors' popup ads (Google didn't use popup ads). Now Google does invasive popovers within the page, etc., and this time with them in charge of the browser they are ahout to implement a plan to block extension makers from stopping it well.