David Nield of Popular Science offers a great explanation of Why and How to Clear Your Web History in Any Browser. In short, routinely clearing your browser history (also often referred to as “clearing your cache”) can help protect your privacy, speed up your browser performance overall, and help you avoid mysterious glitches with web pages displaying incorrectly or behaving in odd ways.
LITS offers brief instructions on clearing your browser history on Microsoft Edge or Safari, or in Google Chrome or Firefox.
UPDATED: Please be aware that, depending on your choices in this process, you may be logged out of your accounts, and will have to log back in when you revisit them next. In some cases, you may lose custom settings for some sites as well.