Sync data
Sync your data across different platforms and devices.
Back up and transfer your Firefox data to a new device
Learn how to transfer your browser data when switching devices using Firefox Sync. Back up your bookmarks, history, passwords, etc. with your Mozilla account.
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How do I set up Sync on my computer?
Use a Mozilla account to sync your bookmarks, history, passwords, add-ons and open tabs with another device, profile or version of Firefox.
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Switch from Chrome to Firefox
Firefox can automatically move bookmarks, passwords, history and other preferences from Chrome without deleting it or interfering with any of its settings.
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Sync Firefox data
Learn what Sync is, how it works, what it lets you do and how to avoid data loss with Sync, Firefox and your Mozilla account.
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How do I choose what information to sync on Firefox?
Learn how to select what information (bookmarks, add-ons, browsing history and other data) to share across your devices with Firefox Sync.
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I've lost my Firefox Sync account information - What to do
This article explains what to do if you forget or lose your Mozilla account password and can't access your Sync account.
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Disable Firefox Sync
Learn how to turn off Firefox Sync if you’d like to use your Mozilla account without syncing data such as, bookmarks, history and tabs.
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Change your Mozilla account password
How to change your Mozilla account password if you detect strange activity on your account.
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View synced tabs from other devices
How to open tabs across your desktop and Android devices.
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Send Tab from Firefox desktop to other devices
The Send Tab feature lets you send pages from Firefox desktop to your phone or tablet so you can view them later.
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How Firefox securely saves passwords
Learn how Firefox securely saves your passwords.
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Delete sync data from Firefox by signing out of your Mozilla account
How to sign out of your Mozilla account and remove your synced data from a device.
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Why can’t I use Firefox sync with my Google or Apple ID?
You can use your Google or Apple ID to sign in to all Mozilla products and services.
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Remove a synced device from your Mozilla account
Disconnect a device from your Mozilla account and stop syncing its data.
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Sync logins in Firefox desktop
How to enable sync for logins and passwords on Firefox desktop
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How Firefox Sync keeps your data safe even if TLS fails
Firefox Sync encrypts your data before it ever leaves your device, and ensures that the password to unlock this encryption is never transmitted to the server.
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How do I know the status of my sync?
The Mozilla account toolbar icon tells you when you are signed in and syncing Firefox data. You can personalize it with your own avatar.
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Disable Firefox Sync on a lost phone or tablet
This article describes what you should do to prevent someone from accessing your passwords on a lost device with Firefox Sync.
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1 week, 6 days ago
Use a Primary Password with Sync
Learn how to use Sync in Firefox with a Primary Password (formerly known as a “Master Password”) for extra protection.
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How to share URLs on Firefox for macOS
Learn how to share URLs of the websites you visit on Firefox for macOS.
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Firefox Sync - Take your bookmarks, tabs and personal information with you
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Sync custom preferences
Firefox Sync allows you to sync your preference settings across all your Firefox Desktop devices. Learn more.
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Change your two-step authentication device for your Mozilla account
What to do if you have two-factor authentication (2FA) setup on your account and need to migrate to a new device or phone.
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3 weeks, 4 days ago
How do I submit a bug for Firefox Sync?
Submitting a bug for Sync? Please include these details.
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