Answered here
http://forum.sex141.com/eforum/v ... mp;highlight=chrome
Best way IMO is simply to use Google Chrome as your browser, and use its built-in 'incognito' function.
But Mars adds a very smart way to configure Firefox to do the same thing.
Whatever your browser is using, you should be able to bring up the history, and to clear it entirely - but exactly how depends on which browser you're using.
Beware though - if you are at work, clearing your computer is NOT a way to hide your tracks.
If you're browsing at work, you need to know that the internet connection monitored by the IT team is logging every single site you visit, and it is traced it back to you - there's nothing you can do to stop or avoid it.