I think just visiting certain webpages can do it , but i think you may have to download something from the page to get it into your system but im not sure if you can get then by just clicking something simple like "CLICK HERE TO MAKE THIS YOUR HOMEPAGE ECT" but someone else here might know alittle more about how easy or hard it is to avoid getting it on your system
(gem) Hvis du vil spare båndbrede kan du reducere mængden af information der vises på dine sider under indstillinger. Prøv at ændre antallet af spil på hovedsiden og antallet af beskeder per side. (pauloaguia) (vis alle tips)