I'm using Firefox on Android and I'm having trouble clearing cookies in the following situations: - When browsing in private mode, after closing all my private tabs and closing Firefox - When browsing in private mode and turning on 'Delete Browsing Data on quit', and quitting by pressing the quit button - When browsing in private mode and manually clearing cookies with 'Delete Browsing Data's I know cookies haven't been cleared because I'm still logged in to websites in private mode after performing the above actions and restarting Firefox. I need to close and restart Firefox multiple times before cookies are actually cleared. I have not tried this in regular (non-private) mode. Could I get help with clearing cookies consistently?