Get Help
Pick your product
Firefox
Web browser for Windows, Mac and Linux
Firefox for Android
Web browser for Android smartphones and tablets
Firefox for iOS
Firefox for iPhone, iPad and iPod touch devices
Mozilla VPN
VPN for Windows 10, Mac, Linux, Android, and iOS devices
Firefox Relay
Service that lets you create email masks to hide your real email address
Mozilla Monitor
Find out if your private information has been exposed in a known data breach.
Discover and save stories for later.
MDN Plus
MDN Plus provides a custom user experience for MDN supporters.
Firefox Focus
Automatic privacy browser and content blocker
Firefox for Enterprise
Firefox Quantum for businesses
Thunderbird
Email software for Windows, Mac and Linux
Featured Articles
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.
Dedicated profiles per Firefox installation
Different Firefox installations now use a separate profile to store your bookmarks, passwords and other settings. Learn more.
Customize items on your Firefox New Tab page
Learn how to customize different items on your Firefox New Tab page.
Firefox does not work - Common fixes to get you back up and running
Find solutions to Firefox issues like crashing, not starting, slowness and websites not loading.
Join Our Community
Grow and share your expertise with others. Answer questions and improve our knowledge base.