Hi FFdawg, Have you tried out any other browser to see if the problem persists? Did you clear all your cookies and site data in Preferences > Privacy and Security > Cookies and Site Data? If the problem persists and does not occur in other browsers, please feel free to reply with your findings. Cheers

Do a malware check with several malware scanning programs on the Windows computer. *https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware Please scan with all programs because each program detects different malware. All these programs have free versions. Make sure you update each program to get the latest version of their databases before doing a scan. *Malwarebytes' Anti-Malware:<br>https://www.malwarebytes.com/ *AdwCleaner:<br>https://www.bleepingcomputer.com/download/adwcleaner/<br>https://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml *SuperAntispyware:<br>https://www.superantispyware.com/ *Microsoft Safety Scanner:<br>https://www.microsoft.com/security/scanner/en-us/default.aspx *Windows Defender:<br>https://windows.microsoft.com/en-us/windows/using-defender *Spybot Search & Destroy:<br>https://www.safer-networking.org/en/index.html *Kasperky Free Security Scan:<br>https://www.kaspersky.com/security-scan You can also do a check for a rootkit infection with TDSSKiller. *Anti-rootkit utility TDSSKiller:<br>https://support.kaspersky.com/viruses/disinfection/5350 <br>https://support.kaspersky.com/viruses/utility