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

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Firefox
Accounts
Profiles

Accounts

Profiles

Create and manage user profiles.

In English

Restore your Firefox browsing data with a backup file

Manage Firefox profiles

Profile Manager - Create, remove or switch Firefox profiles

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

How to run Firefox when your profile is missing or inaccessible

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