Firefox 57+ (Win) - Clearing Cache and Cookies
This document explains how to clear the cache and cookies from Mozilla Firefox 57.0 to the newest version
See Mozilla Support for the most up-to-date information: Mozilla Support
- Click the Menu (three stacked horizontal lines) then click Settings.
- On the left side, select Privacy & Security, then scroll down and select Clear Data....
- In the pop-up menu, make sure both boxes are checked for Cookies and Site Data and Cached Web Content, then click Clear.