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Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Firefox for families

Stay connected

Sync information across devices

Manage the devices linked to your Mozilla account

Find solutions to help you manage the devices and services connected to your Mozilla account.

Last updated: 10/29/2023

Browsing history in Firefox - View the websites you have visited

Firefox keeps track of the websites you visit when you browse the Web. Learn how to view, search and sort your browsing history.

Last updated: 09/22/2023

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.

Last updated: 10/30/2023

Using 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.

Last updated: 03/19/2024

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Grow and share your expertise with others. Answer questions and improve our knowledge base.