When you visit certain website pages, browser’s cache(helps pages load faster) and cookies(files created by websites you’ve visited) would be stored on your computer. You should know that clearing your browser’s cache and cookies would erase the website settings such as usernames and passwords and some websites would be opened slower as all the contents of the pages needs to be loaded again.

However, it is good to clear your cookies, cache, history and footprints every once in a while to free up hard disk space. Now, let’s see how to delete browsing history on Mac.

Part 1: Delete Browsing History & Cache Manually
Part 2: Delete Browsing History & Cache with CleanMyMac 3

learn more: https:///2018/07/21/mac-os-sierra-delete-browsing-history-cache/