Frequent Topics
Explore the knowledge base.
Still need help?
We’re here for you. Post a question to our support forums and get answers from our community of experts.
Ask the CommunityFeatured Articles
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.
How to opt out of studies on Firefox for iOS
Here's how you can opt in or out of studies on Firefox iOS
Add-ons in Firefox for iOS
Why Firefox add-ons are unavailable for Firefox on iOS.
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.
Join Our Community
Grow and share your expertise with others. Answer questions and improve our knowledge base.