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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.
Enable and disable cookies that websites use to track your preferences
Websites store things like your preferences, login status, and trackers in "cookies" on your computer. Learn how to manage cookies in Firefox.
Customize items on your Firefox New Tab page
Learn how to customize different items on your Firefox New Tab page.
Enable background updates on Firefox for Windows when Firefox is not running
On Windows, you can set Firefox to update in the background even when it isn't running, so you always have the latest version. Learn more.
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