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Firefox profile cannot be loaded. It may be missing or inaccessible.

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New Contributor

Firefox profile cannot be loaded. It may be missing or inaccessible.

Firefox 12.0 cannot load on Mac OS 10.6.8. It comes up with the Firefox profile cannot be loaded. It may be missing or inaccessible. Even if I run the profile manager.

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13 REPLIES
New Contributor

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

I've tried: Reimaging Reinstalling to 18.0 Restarting /Applications/Firefox.app/Contents/MacOS/firefox-bin -profilemanager /Applications/Firefox.app/Contents/MacOS/firefox-bin -p Copy and pasted a working profile into the default location then chowning folder sudo chown -R `id -un`:`id -gn` ~ What temporarily works is /Applications/Firefox.app/Contents/MacOS/firefox-bin -profilemanager /temp/default however it will close as soon as terminal closes and then comes up with the same missing profile error on attempted restart of firefox.

What I've noticed is that the image and firefox will work on macs that are newer rather than older. For instance it wont work on the old macbooks and iMacs but on the newer iMac the exact same image will work. Any help is appreciated, I work for a school district and they need firefox working.

Legendary Contributor

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

New Contributor

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

Tried it, no luck.

I've tried renaming the profile.ini and it still wont open both firefox and the profilemanager having the same error come up.

Site Moderator

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

Try to repair the disk permissions:

Does Firefox create an new profiles.ini file and a new default profile?

New Contributor

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

I've tried a repair disk permissions nothing.

Firefox does not create a new profile.ini or a new profile it just pops up with the error before doing anything.

Legendary Contributor

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

can you open the profile.ini file (it is a text file, it can be easily opened, viewed and edited, with a text editor) and see if the values within is correct ? (see: Here are two examples of the profiles.ini file contents....) if it is not correct, can you correct the values ?

if you correct the values can firefox open ?

if not(with correct values) try to Creating a profile that is not listed in the Profile Manager

if doesn't work try to Modify profiles.ini to point to the new location - Advanced

YES it is not easy at all !


thanks and sorry if i confusing you

Site Moderator

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

Try to delete the Firefox folder:

  • /Users/<user>/Library/Application Support/Firefox

Try to remove the Firefox plist file (org.mozilla.firefox.plist).

Go to "~/Library/Preferences" and remove the plist file for Firefox (org.mozilla.firefox.plist)

New Contributor

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

Mmm i'll try removing the plist tomorrow.

And I've checked the ini file all the links are correct in it.

New Contributor

Re: Firefox profile cannot be loaded. It may be missing or inaccessible.

Removing the plist and deleting the folder still comes up with the same error both when trying to load the application and the terminal the profile manager.