Detail like websites remembering you and log you in automatically is stored in cookies, so make sure you aren't clearing important cookies. You can use these steps to make a website recognize and remember you. *create a cookie allow exception with the proper protocol (https:// or http://) to make a website remember you You can check that you aren't clearing important cookies. *using "Delete cookies and site data when Firefox is closed" keeps cookies with an allow exception (toggling this setting makes changes to the "Clear history when Firefox closes" settings in 102+ versions and these settings matter) *using "Clear history when Firefox closes" to clear cookies in Firefox 102+ honors exceptions (older versions removed all cookies) Make sure to keep the "Site Preferences". *clearing "Site Preferences" clears exceptions for cookies, images, pop-up windows, and software installation and exceptions for passwords and other website specific data *Settings -> Privacy & Security<br>Cookies and Site Data: "Manage Exceptions" *Settings -> Privacy & Security<br>Firefox will: "Use custom settings for history":<br>[X] "Clear history when Firefox closes" -> Settings