Find "Clear data"
Press the Menu key.
Press NokiaBrowser.
Press the menu icon.
Press Settings.
Press Clear data.
Clear cache
Press the icon next to Cache.
A copy of the web pages you've visited is saved in the cache. The next time you connect to a previously visited web page, your phone retrieves data from the cache.
Clear cookies
Press the icon next to Cookies.
A cookie is data saved by a web page in the browser memory. The data can be login information or other information about the choices you've made on a web page. Cookies allow the provider to adjust the contents of the web page to your preferences.
Exit
Press the Menu key to return to standby mode.