Every web browser stores web pages, images and other downloaded content on the computer.
This is called the browser's cache.
After the browser opens, click on "Tools"
Now click on Clear Recent History. Alternatively, you can access this menu directly by pressing Ctrl+Shift+Delete.
Now, beside "Time range to clear", click "Everything".
Click on Details and select only Cache.
Select Clear Now.
Clearing it occasionally or regularly can protect your privacy and free up some space in your computer.