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Web browser for Windows, Mac and Linux
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Web browser for Android smartphones and tablets
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Firefox for iPhone, iPad and iPod touch devices
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VPN for Windows, 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
Thunderbird for Android
Email app for Android smartphones and tablets
Featured Articles
Insecure connection password warning in Firefox
Firefox will show you a "connection is not secure" warning message when a website login page is insecure and information could be stolen.
Firefox support for Windows 7, 8, and 8.1
Firefox version 115 ESR will be the last supported release for Windows 7, 8 and 8.1.
Manage local site storage settings
Learn about local storage, how to access storage settings, remove site data or set exceptions for websites to store data in Firefox.
Change Firefox options, preferences and settings
Learn how to access and adjust Firefox settings, including privacy, startup behavior, downloads and more.
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