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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
Update Firefox to prevent add-ons issues from root certificate expiration
Update to Firefox 128+ by March 14, 2025, to avoid issues with add-ons, DRM media and essential features due to an expiring root certificate.
Common Myths about Private Browsing
Learn more about common misconceptions about Private Browsing in Firefox.
Website will not allow Firefox to display the page if another site has embedded it
This page explains the error: "Website will not allow Firefox to display the page if another site has embedded it"
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.
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