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Firefox
Web browser for Windows, Mac and Linux
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Firefox for Android
Web browser for Android smartphones and tablets
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Firefox for iOS
Firefox for iPhone, iPad and iPod touch devices
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Mozilla VPN
VPN for Windows, Mac, Linux, Android, and iOS devices
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Firefox Relay
Service that lets you create email masks to hide your real email address
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Mozilla Monitor
Find out if your private information has been exposed in a known data breach
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Discover and save stories for later
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MDN Plus
MDN Plus provides a custom user experience for MDN supporters
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Firefox Focus
Automatic privacy browser and content blocker
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Firefox for Enterprise
Firefox Quantum for businesses
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Thunderbird
Email software for Windows, Mac and Linux
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Thunderbird for Android
Email app for Android smartphones and tablets
Featured Articles
Secure connection failed and Firefox did not connect
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.
Common Myths about Private Browsing
Learn more about common misconceptions about Private Browsing in Firefox.
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.
Install Firefox on Linux
This article describes how to download and install Firefox on Linux.
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