A new window opens with the home page(s) as set in Options/Preferences > General.

You can check the home page setting:

• Tools > Options > General > Startup: Home page

Firefox supports multiple home pages separated by '|' (pipe) symbols.

• https://support.mozilla.org/kb/How+to+set+the+home+page

Sorry but that didn't help. The additional new tabs or windows that open direct me to helplines for troubleshooting computers. So when I click on a link, not only does that link open but at least 1-2 other either tabs or will open up as well leaving me to scramble to close the offending site(s). McAfee says its all up and running but it's as if something is turned off thanks

Hi, have a look at Firefox repeatedly opens empty tabs or windows after you click on a link. Also be aware that it may be a malware issue, as mentioned and linked at the bottom of the article.

If your question is resolved by this or another answer, please take a minute to let us know. Thank you.

Do a malware check with several malware scanning programs on the Windows computer. Please scan with all programs because each program detects different malware. All these programs have free versions.

Make sure that you update each program to get the latest version of their databases before doing a scan.

• Malwarebytes' Anti-Malware:
  http://www.malwarebytes.org/mbam.php
• AdwCleaner:
  http://www.bleepingcomputer.com/download/adwcleaner/
  http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
• SuperAntispyware:
  http://www.superantispyware.com/
• Microsoft Safety Scanner:
  http://www.microsoft.com/security/scanner/en-us/default.aspx
• Windows Defender:
  http://windows.microsoft.com/en-us/windows/using-defender
• Spybot Search & Destroy:
  http://www.safer-networking.org/en/index.html
• Kasperky Free Security Scan:
  http://www.kaspersky.com/security-scan

You can also do a check for a rootkit infection with TDSSKiller.

• Anti-rootkit utility TDSSKiller:
  http://support.kaspersky.com/5350?el=88446

See also:

• "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked
• https://support.mozilla.org/kb/troubleshoot-firefox-issues-caused-malware

Momentor said

Windows 7, in firefox, if i right click on a link in one window to open in either a new tab or new window, i am getting 1 to 2 extra windows or tabs that open up wanting to direct me to help desk buisness...it is as if Mcafee isn't working at all

Nothing helped till I spent 70.00 with Mcafee...it's working fine now!