This is the process for removing browser data in Safari.
Throughout the process, you might be prompted for a user name and password. If you are, enter the login information for your computer and not your Missouri State account.
In the Apple bar at the top of the screen, click Safari >Preferences...
Click the Privacy button at the top.
Click Remove All Website Data...
On the next pop-up, click Remove Now.
Select from either From third parties and advertisers or Never, depending on your need,under the section 'Block cookies and other website data.'
It may be useful to choose Never under the 'Block cookies and other website data' section if you are clearing your web data to try and log into a website or do something online that is blocked from you.