On Linux or Mac, start Firefox with the -ProfileManager switch, e.g./firefox -ProfileManager (this assumes that you're in the firefox directory). You should now see the Profile Manager window, shown in the screenshot to the right. From the Profile Manager you are also able to remove and rename profiles. Create a new profile; Type about:support into the url bar. Press the open profile folder button. Delete everything from the new profile (you will lose all existing data from the profile). Unzip the profile.zip file into the folder. Start Firefox again. If you made a new profile, you can use it with firefox -no-remote -P profilename. Profiles - Where Firefox stores your bookmarks, passwords and other user data All of the changes you make in Firefox, like your home page, what toolbars you use, extensions you have installed, saved passwords and your bookmarks, are all stored in a special folder, called a profile.

1. Firefox Profiles Mac
2. Firefox Launch With Profile
3. Appdata Mozilla Firefox Profiles Mac

If you see a 'Profile Missing' error message that says, Your Firefox profile cannot be loaded. It may be missing or inaccessible it usually means that Firefox can't find or access the profile folder. This article explains what to do if you see this error.

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• If you moved, renamed, or deleted your Firefox profile folder
  • A profile was moved or renamed
  • A Profile was deleted

Firefox stores your user data and settings in a special profile folder and pulls information from this folder every time you start Firefox. The default profile folder location is under the ~/Library/Application Support/Firefox/Profiles folder, which you can find using these instructions.

Firefox Profiles Mac

A Profile was moved or renamed

If you know where your profile is, try one of the following methods to help Firefox find it.

• Move the profile folder back to its original location.
• Restore the profile's original name if you've changed it.
• Create a new profile using the Profile Manager. Give it a descriptive name, click on the button, and then select the profile folder you moved or renamed, before you finish the Create a new profile wizard.

Profile was deleted

If you deleted or lost your profile folder and have no way of restoring it, use one of these methods to create a new Firefox profile:

• Method 1: Use the Profile Manager wizard

Follow the steps in the Use the Profile Manager to create and remove Firefox profiles article to create a new profile.

• Method 2: Manually delete the profiles.ini file

If you have problems accessing the Profile Manager, you can create a new default Firefox profile by deleting the profiles.ini file, using these steps:

Firefox Launch With Profile

1. Navigate to your user ~/Library folder:
   • (OS X 10.6) Click the Finder icon in the dock. Your home folder will be selected, (usually the name of your Mac user account). In the right side of the window, click the Library folder to open it.
   • (OS X 10.7 and above) Click the Finder icon in the dock. On the menu bar, click the Gomenu, hold down the option or alt key and select Library. A window will open containing your Library folder.
2. Click on the Application Support folder, then go to the Firefox folder.
3. Delete (or rename, for example, to profiles.iniOLD) the profiles.ini file.

When you start Firefox, a new profile will be created.

Appdata Mozilla Firefox Profiles Mac

If you have any questions, come by the Help Desk at Hardman & Jacobs Undergraduate Learning Center Room 105, call 646-1840, or email us at help@nmsu.edu.