Firefox comes in three or more folders on all computers. They are;

Maintenance: (Programs Folder) <Windows Only> Firefox itself: (Programs Folder) And two folders in the profile of each user on the computer for each Firefox profile for that user.

If you remove the Firefox folder, the user profiles would not be affected.

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

http://kb.mozillazine.org/Profile_folder_-_Firefox#Navigating_to_the_profile_folder

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

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

Type about:profiles<enter> in the address bar. How many profiles are listed? How many should be there?

Did you also remove the Firefox profile folder?

• ~/Library/Application Support/Firefox/Profiles/<profile>/

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

• http://kb.mozillazine.org/Show_hidden_files_and_folders#Mac_OS_X
• https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

If you use the Time Machine or other backup then try to restore file(s) from this backup.

• http://www.apple.com/support/timemachine/
• https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

Thank You to cor-el and FredMcD...

You guys are smart! Once you directed me where to go, restoring what I needed was actually easy!

Thank you again.