There are some help threads:

• How to run Firefox when your profile is missing or inaccessible
• question/961881
• http://kb.mozillazine.org/Profile_cannot_be_loaded

Is there a folder on your desktop called Old Firefox? Did you have any problem with FF?

Create a new profile. https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles Windows: 32-bit C:\Program Files\Mozilla Firefox\firefox.exe -p 64-bit C:\Program Files (x86)\Mozilla Firefox\firefox.exe -p Mac: Navigate to /Applications/Utilities. Open the Terminal application. In the Terminal application, enter the following: /Applications/Firefox.app/Contents/MacOS/firefox-bin -p Linux: In Terminal run: firefox –P

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

For Fred Mc

I emptied the trash so the Old Firefox Data folder is gone

Bob F. Tucson

Did you look for the profiles.ini file?

This is usually caused by a problem with the profiles.ini file and the profile marked as Default=1 in this file is no longer present on the hard drive.

• Windows: %AppData%\Mozilla\Firefox\
  C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles\<profile>\
• Linux: ~/.mozilla/firefox/
• Mac: ~/Library/Application Support/Firefox/

You can use one of these to make Firefox create a new default profile or reuse an existing profile:

• Delete the profiles.ini file to force Firefox to create a new default profile
• Use the Profile Manager to create a new profile
  Use "Choose Folder" when you create a new profile to select the location of a lost profile and recover this profile

• http://kb.mozillazine.org/Profile_Manager
• https://support.mozilla.org/kb/Managing+profiles
• http://kb.mozillazine.org/Profile_folder_-_Firefox

Bardobob1 said

All of a sudden, when trying to access Firefox, I got an error message saying my Firefox Profile was missing or deleted. I've tried all the online instructions to recreate the Profile with no success. I will be very grateful for a hopefully easy solution to this problem i uninstalled Firefox and reinstalled it but still got the Profile error message. Thank you for your help. Sincerely, Bob Freedman Tucson, AZ

Thanks again for your support but, please, remember I am beyond a complete computer moron

there is no Mac: ~/Library/Application Support/Firefox/  and I cannot find the ini.file

In Mac OS X v10.7 and later, the ~/Library folder is a hidden folder.

• http://kb.mozillazine.org/Show_hidden_files_and_folders#Mac_OS_X

thanks I'm running 10.6.8