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
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.
Hubs
Collaborate and engage with each other through spatialized audio and with media from around the web.
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
Insecure password warning in Firefox
Firefox issues an insecure password warning when a web page's login form is not secure and your information could be stolen.
Firefox options, preferences and settings
Settings panels give you access to Firefox settings. This article describes what types of settings are available in each panel.
Captive portal detection
Page that describes how Firefox detects captive portal networks.
Add-on Badges
You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.
Join Our Community
Grow and share your expertise with others. Answer questions and improve our knowledge base.