Since have been installing and reinstalling please download this Full Version 56.0.1 Installer and uninstaller any other versions of Firefox, delete folders in Program Files and Program Files x86 and in ProgramData https://www.mozilla.org/en-US/firefox/all/

Please let us know if this solved your issue or if need further assistance.

I have uninstalled and reinstalled Firefox 2x??

Yes but did you follow the above directions ?

I will try it one last time and check the different folders. Strange thing is, this morning I was using my Firefox browser as usual. Then I left and went to the store and when I returned and tried to open Firefox again it would do anything? I am trying to understand what could have happened in that short time?

Nope, nothing. I went to all three folders after the un-install process, removed any remaining folders, re-installed Firefox - and nothing.

I right-click and try to run as administrator - nothing happens. It just won't open or run?

Note : you made a duplicate post https://support.mozilla.org/en-US/questions/1180928 do not post in that URL I am marking it for deletion.

AM going to get you to do this please : https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware and https://www.malwarebytes.com/adwcleaner/ If it finds stuff please save the logs and then go here and open a account https://forums.malwarebytes.com/topic/9573-im-infected-what-do-i-do-now/ Do not post in more than 1 forum and then wait for a answer.

The duplicate was my original post, but after going through the authentication process and logging on I couldn't find it so I posted a second (this one) post

Currently I am running a malware scan

Boot the computer in Windows Safe mode with network support to see if that has effect in case security software is causing problems.

• http://www.bleepingcomputer.com/tutorials/how-to-start-windows-in-safe-mode/
• http://www.7tutorials.com/4-ways-boot-safe-mode-windows-10

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:
  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

Can I run multiple scans at the same time or should I only run one scan at a time?

They could conflict, best to run 1 at a time.

I ran the list (one at a time) of all the malware and spyware programs. Nothing has changed. I still can't open/run Firefox  :/

Try to boot the computer in Windows Safe Mode with network support and do a clean reinstall.

Do a clean reinstall of the current Firefox release and delete the Firefox program folder before installing a fresh copy of the current Firefox release.

• download the Firefox installer and save the file to the desktop
  *https://www.mozilla.org/en-US/firefox/all/

If possible uninstall your current Firefox version to cleanup the Windows Registry and settings in security software.

• do NOT remove "personal data" when you uninstall the current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

• (64-bit Firefox) "C:\Program Files\Mozilla Firefox\"
• (32-bit Firefox) "C:\Program Files (x86)\Mozilla Firefox\"

• it is important to delete the Firefox program folder to remove all the files and make sure there are no problems with files that were leftover after uninstalling
• http://kb.mozillazine.org/Uninstalling_Firefox

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data when you uninstall and reinstall or update Firefox, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

Try to start Firefox in Safe Mode to see if that works if there are still ally.

• Windows: hold down the Shift key while starting Firefox
• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode

• http://kb.mozillazine.org/Profile_folder_-_Firefox
• http://kb.mozillazine.org/Profile_backup

• http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall