Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Hilfe durchsuchen

Vorsicht vor Support-Betrug: Wir fordern Sie niemals auf, eine Telefonnummer anzurufen, eine SMS an eine Telefonnummer zu senden oder persönliche Daten preiszugeben. Bitte melden Sie verdächtige Aktivitäten über die Funktion „Missbrauch melden“.

Weitere Informationen

Deleted Profile on MacOS, Firefox not opening

  • 2 Antworten
  • 0 haben dieses Problem
  • 54 Aufrufe
  • Letzte Antwort von AliceWyman
  • Gelöst

MacOS 15.5

I accidentally deleted my Firefox profile not knowing its criticality. When trying to open Firefox, I receive "Profile Missing. You're Firefox profile cannot be loaded. It may be missing or inaccessible.".

1. I have uninstalled and reinstalled Firefox to no success 2. In the Library/Application Support directory, there is no Firefox or Mozilla folder 3. In the Library/Caches directory, there is no Firefox or Mozilla folder 4. I have tried opening Firefox by pressing option + click, no change in behaviour

MacOS 15.5 I accidentally deleted my Firefox profile not knowing its criticality. When trying to open Firefox, I receive "Profile Missing. You're Firefox profile cannot be loaded. It may be missing or inaccessible.". 1. I have uninstalled and reinstalled Firefox to no success 2. In the Library/Application Support directory, there is no Firefox or Mozilla folder 3. In the Library/Caches directory, there is no Firefox or Mozilla folder 4. I have tried opening Firefox by pressing option + click, no change in behaviour
Angefügte Screenshots

Ausgewählte Lösung

P.S. on macOS there is a Library folder and a Users "~/Library" folder which contains the Firefox folder. Your screenshot is of the wrong folder. See Profiles - Where Firefox stores your bookmarks, passwords and other user data under this section:

Finding your profile without opening Firefox: 1. Click the Finder icon in the dock. On the menu bar, click the Go menu, hold down the option or alt key and select Library. A window will open containing your Library folder. 2. Open the Application Support folder, then open the Firefox folder, and then the Profiles folder. 3. Your profile folder is within this folder. If you only have one profile, its folder would have "default" in the name.

From https://support.mozilla.org/en-US/questions/1446129#answer-1650375

4/30/24, 1:08 PM Primary location used for the main profile that keeps your personal data (Root Directory on about:profiles).
  • ~/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.

See also https://kb.mozillazine.org/Show_hidden_files_and_folders#Mac_OS_X

Diese Antwort im Kontext lesen 👍 0

Alle Antworten (2)

Ausgewählte Lösung

P.S. on macOS there is a Library folder and a Users "~/Library" folder which contains the Firefox folder. Your screenshot is of the wrong folder. See Profiles - Where Firefox stores your bookmarks, passwords and other user data under this section:

Finding your profile without opening Firefox: 1. Click the Finder icon in the dock. On the menu bar, click the Go menu, hold down the option or alt key and select Library. A window will open containing your Library folder. 2. Open the Application Support folder, then open the Firefox folder, and then the Profiles folder. 3. Your profile folder is within this folder. If you only have one profile, its folder would have "default" in the name.

From https://support.mozilla.org/en-US/questions/1446129#answer-1650375

4/30/24, 1:08 PM Primary location used for the main profile that keeps your personal data (Root Directory on about:profiles).
  • ~/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.

See also https://kb.mozillazine.org/Show_hidden_files_and_folders#Mac_OS_X

Geändert am von AliceWyman

Stellen Sie eine Frage

Sie müssen sich mit Ihrem Benutzerkonto anmelden, um auf Beiträge zu antworten. Bitte stellen Sie eine neue Frage, wenn Sie noch kein Benutzerkonto haben.