Which browser are you using?. I think, clearing the cache and cookies may solve your problem.

You need to clear your cache/history/footprints and cookies. We need a little more information in order to give you step-by-step instructions, though.

It’s different for each browser, but not hard.

1. Ctrl-Shift-Delete from within the browser, then clear the cache, cookies, form data etc.

2. Next time, use the privacy option before surfing for donkey-midget porn ;)

To get rid of your porn, you need to delete your temporary internet files, and you need to delete your history. This will be somewhere in your browser settings.

Get a product like CCleaner
Configure it and let it do the work

Flash player also stores a lot of cookies that normal cleaning doesn’t remove. If you use Windows, search for the folder called C:\users\(your user name)\AppData\Roaming\Macromedia\Flash Player\#SharedObjects\QKM7END5
and manually delete anything you don’t recognize.