In this tutorial, we learn how to save drive space using Firefox. If you want to change the cache folder location, whether it's for security or just because, it's very simple. First, type in "about:config" into your internet browser. A new page will appear, right click your mouse and select "new" and then "string". When the page asks for the preference name, type in "browser.case.disk.parent_directory". Then, type in the name of the folder where you want the cache to go. Next, Firefox will create a new folder where your cache is. This can move your files to a new location and make your computer run faster and more efficiently.