Ever wondered how Google, Yahoo or some other site knew who you were even though you deleted the temp files and cleared cookied ? Yes, cookies were cleared when you cleaned it in your browser, how else could they know ?
There is a kind of Super Cookie that most people dont know about. LSO (Local Shared Objects) is a cookie-like collection of data stored on your computer and are made by all version of Adobe Flash Player & MX Player. Websites and advertisers are known to use LSO to track users.
LSO’s don’t ask the users permission to store the data on the computer in system folder. Since the data is stored in the system folder, they are protected from deletion. Each LSO offers 100KB of data to be stored compared to 4KB offered via cookies. They can also send information to their servers without the users knowledge.
If you want to protect yourself and not be tracked by advertisers, get the BetterPrivacy Addon for Firefox. It automatically deletes, all the LSO while exiting the browsers.
Better Privacy serves to protect against not deletable longterm cookies, a new generation of ‘Super-Cookie’, which silently conquered the internet. This addon was made to make users aware of those hidden, never expiring objects and to offer an easy way to get rid of them – since browsers are unable to do that for you.