The website login status is stored in special cookies. Many site issues can be caused by corrupt cookies or cache. * Clear the Cache and * Remove Cookies '''Warning ! ! ''' This will log you out of sites you're logged in to. You may also lose any settings for that website. Type '''about:preferences'''<enter> in the address bar. * '''Cookies; ''' Select '''Privacy. ''' Under '''History, ''' select Firefox will '''Use Custom Settings. ''' Press the button on the right side called '''Show Cookies. ''' Use the search bar to look for the site. Note; There may be more than one entry. Remove '''All''' of them. * '''Cache; ''' Select '''Advanced > Network. ''' [v57+] Select '''Privacy. ''' Across from '''Cached Web Content, ''' Press '''Clear Now. ''' ------------------ Separate Security Issue: Update your Flash Player '''Note: Windows users''' should download the '''ActiveX''' for ''Internet Explorer.'' '''and''' the '''plugin''' for ''Plugin-based browsers'' (like Firefox). '''Note: Windows 8 and Windows 10''' have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX. Flash Player Version: '''Version 28.0.0.161 ''' https://get.adobe.com/flashplayer/ Direct link scans current system and browser '''Note: Other software''' is offered in the download. <Windows Only> https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) '''Note: Other software''' is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

What happens if you try to logout? There might be third-party issues with clearing cookies from another domain if you can't log off. You can test this by temporarily enabling third-party cookies. To see all History and Cookie settings, choose: *Options/Preferences -> Privacy & Security -> Firefox will: "Use custom settings for history" *https://support.mozilla.org/en-US/kb/Options+window+-+Privacy+panel