Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I keep getting this error : Your Firefox profile cannot be loaded. It may be missing or inaccessible.

  • 8 பதிலளிப்புகள்
  • 2 இந்த பிரச்னைகள் உள்ளது
  • 1 view
  • Last reply by iamtess

I am on a macbook pro. I have deleted app and at, reinstalled, still get this error:Your Firefox profile cannot be loaded. It may be missing or inaccessible.

I rename the Firefox folder /Library/Application Support/Firefox and still I get this error: Your Firefox profile cannot be loaded. It may be missing or inaccessible.

In terminal I tried ot create a new profile using: /Applications/Firefox.app/Contents/MacOS/firefox-bin -P but receive this error in terminal: Error: Access was denied while trying to open files in your profile directory and this error pops up in Freifox: Your Firefox profile cannot be loaded. It may be missing or inaccessible.

I am on a macbook pro. I have deleted app and at, reinstalled, still get this error:Your Firefox profile cannot be loaded. It may be missing or inaccessible. I rename the Firefox folder /Library/Application Support/Firefox and still I get this error: Your Firefox profile cannot be loaded. It may be missing or inaccessible. In terminal I tried ot create a new profile using: /Applications/Firefox.app/Contents/MacOS/firefox-bin -P but receive this error in terminal: Error: Access was denied while trying to open files in your profile directory and this error pops up in Freifox: Your Firefox profile cannot be loaded. It may be missing or inaccessible.

தீர்வு தேர்ந்தெடுக்கப்பட்டது

Problem solved - I reset my user permissions using info from this page: https://appletoolbox.com/2016/07/fix-corrupt-user-accounts-macos/

Read this answer in context 👍 0

All Replies (8)

This is a problem with the profiles.ini file that registers all Firefox profiles. The profile folder is in the ~/Library folder in your home directory and not in the global /Library folder if that is where you are looking.

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

Make sure that the permissions of this folder are OK.

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

You can use the Profile Manager to create a new profile.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.

Thanks I have seen all of the links you suggested. I have completely uninstalled and reinstalled Firefox and all the data about 5 times but I am still getting the "Your Firefox profile cannot be loaded. It may be missing or inaccessible" and am unable to access the profile manager . Any more suggestions?

Reinstalling Firefox won't help, you will have to locate the profiles.ini file.

Did you try to use the Profile Manager to create a new profile?

I have located the profile.ini file.

In terminal I tried to create a new profile using: /Applications/Firefox.app/Contents/MacOS/firefox-bin -P but receive this error in terminal: Error: Access was denied while trying to open files in your profile directory and this error pops up in Freifox: Your Firefox profile cannot be loaded. It may be missing or inaccessible.

You can try to do some maintenance and cleanup with OnyX.

I downloaded onyX and ran the maintenance on my machine - Firefox STILL not working. :(

Can someone please help me with this? I have run onyX and it didn't help.

தீர்வு தேர்ந்தெடுக்கப்பட்டது

Problem solved - I reset my user permissions using info from this page: https://appletoolbox.com/2016/07/fix-corrupt-user-accounts-macos/