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
Profile Manager - Create, remove or switch Firefox profiles
Firefox stores your personal information and settings in a profile folder. Learn to work with different profiles on Firefox.
Windows 10 warns me to use a "Microsoft-verified" app
Windows 10 may interrupt your Firefox install with a warning about "Microsoft-verified apps". Firefox is safe to install and use, so choose "install anyway".
Captive portal detection
Description of how Firefox detects captive portal networks.
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.
Join Our Community
Grow and share your expertise with others. Answer questions and improve our knowledge base.