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Profiles - Where Firefox stores your bookmarks, passwords and other user data

Firefox stores your personal data and settings in a profile folder. Learn what information it contains and how to find your profile.

Last updated: 7/30/25

Learn about the new Firefox profile manager and how to create, customize, manage and switch profiles that you use for different purposes.

Last updated: 4 days, 1 hour ago

Firefox stores your personal information and settings in a profile folder. Learn to work with different profiles on Firefox.

Last updated: 7/30/25

How to fix the error ''Your Firefox profile cannot be loaded. It may be missing or inaccessible'' so that you can start and run Firefox.

Last updated: 3/18/25