Clearing Browser Data

Firefox
Firefox > Preferences > Privacy & Security > Cookies & Site Data > Clear Data.
Firefox > Preferences > Privacy & Security > History > Clear History.

Safari
Safari > Preferences > Privacy > Manage Website Data > Remove any sites you want to clear the data for, or remove all.
Safari > Clear History

Chrome
Chrome > Clear browsing data
Chrome > Preferences > Privacy and Security > Clear browsing data > check the boxes for what you would like to clear.