This article explains how to clear the cache in the desktop and mobile versions of Firefox. The desktop instructions are for Firefox version 79 and later. Update to the latest version of Firefox to follow along.
How to Clear Cache in Firefox Windows 10
Follow the simple steps below to clear the cache of the desktop software. It is a simple process that takes less than a minute to complete.
Open Firefox and select the three-line menu button in the upper-right corner of the program. Then choose Settings or Options (depending on which option you see in your version).
On a Mac, open the Firefox menu and choose Preferences.
