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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
Back up your Firefox data
Learn how to seamlessly transfer your bookmarks, browsing history, passwords, and open tabs to a new computer by backing them up with a Firefox account.
How to troubleshoot security error codes on secure websites
Learn about the error codes SEC_ERROR_UNKNOWN_ISSUER MOZILLA_PKIX_ERROR_MITM_DETECTED and ERROR_SELF_SIGNED_CERT on HTTPS websites and how to troubleshoot.
Captive portal detection
Page that describes how Firefox detects captive portal networks.
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.
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