Would you like to surf the web free of the prying eyes of advertisers? Ghostery provides an easy - if only partially effective - solution. Originally launched in 2009, the service is simple to install. From the above link, the site automatically recognizes which browser you are using and offers itself as an add on. Ghostery is available for desktop and mobile devices and is compatible with Chrome, Firefox, Safari, Internet Explorer, Opera, Android, iOS, and Firefox Android. Once Ghostery has downloaded, it will appear as a ghost icon on your browser toolbar and launch an introduction page with further instructions. Every time you visit a page, it will show you the number of detected trackers in a number bubble. You can then block those trackers individually or by clicking categories such as "advertisers" or "analytics" (located under "options").