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Firefox

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 10, 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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Pocket

Discover and save stories for later.

MDN Plus

MDN Plus

MDN Plus provides a custom user experience for MDN supporters.

Firefox Focus

Firefox Focus

Automatic privacy browser and content blocker

Firefox for Enterprise

Firefox for Enterprise

Firefox Quantum for businesses

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Thunderbird

Email software for Windows, Mac and Linux

Featured Articles

Secure connection failed and Firefox did not connect

Secure connection failed and Firefox did not connect

If a website requires a secure connection that cannot be established, Firefox will not connect to protect you and will show you an error page. Learn more.

Common Myths about Private Browsing

Common Myths about Private Browsing

Learn more about common misconceptions about Private Browsing in Firefox.

Make Firefox your default browser on Windows

Make Firefox your default browser on Windows

Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.

Website will not allow Firefox to display the page if another site has embedded it

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"

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