I keep getting '500 error' when trying to login to my Evergy account. The Evergy support was helpful so I could use Google Chrome however I would like to use my Firefox browser. They had me clear browser history, cookies and other site data and cached images and files. Then restart the Google Chrome browser. How can I get the same data cleared in Firefox? I have used the privacy and security settings in Firefox and cleared cache and history and cookies, but still can't log into my account. This has been an issue since 12/01/2024