Privacy and security

Avoid and report Mozilla tech support scams

Mozilla does not provide telephone support and does not charge for software downloads, upgrades or technical help. Learn more.

Last updated: 2/3/25

Private Browsing on Firefox for Android

Private Browsing on your mobile device is great for viewing websites incognito - without saving information about the sites you visit.

Last updated: 1/23/24

Manage technical and interaction data collection settings in Firefox

Learn what technical and interaction data Firefox collects, how it’s used, and how to manage or opt out on desktop, Android and iOS.

Last updated: 3/14/25

HTTPS-Only Mode in Firefox for Android

HTTPS-Only Mode is available for Firefox for Android. You can turn this setting on or off.

Last updated: 4/22/25

Manage marketing data settings in Firefox for Android

Learn what marketing data Firefox collects on Android, how Mozilla uses it, and how to manage or opt out of marketing data sharing.

Last updated: 5/30/25

Mobile - Manage Firefox data collection and privacy settings

Manage Firefox’s data collection settings on iOS and Android, including technical and interaction data, the DAU ping, crash reports, sponsored content and others.

Last updated: 3/27/25

Manage daily usage ping data collection settings in Firefox

Learn how to manage daily usage ping data collection settings in Firefox.

Last updated: 6/7/25

How to set up Firefox Sync in Firefox for Android

How to enable sync on Firefox for Android to sync your bookmarks, credit cards, history, logins and open tabs across your devices.

Last updated: 9/7/24

How do I choose what information to sync on Firefox?

Learn how to select what information (bookmarks, add-ons, browsing history and other data) to share across your devices with Firefox Sync.

Last updated: 4/19/25

Enhanced Tracking Protection in Firefox for Android

Control who's watching you on the Internet. This article explains how to turn on Tracking Protection in Firefox for Android.

Last updated: 2/25/23

Firefox Terms of Use FAQ

Frequently asked questions about Firefox Terms of Use.

Last updated: 6/17/25

Oblivious HTTP (OHTTP) explained

One of the technologies used in Firefox to enhance online privacy is Oblivious HTTP (OHTTP). Learn what it is, how it works and how it helps protect your data.

Last updated: 3/6/25

Disable Firefox Sync on a lost phone or tablet

This article describes what you should do to prevent someone from accessing your passwords on a lost device with Firefox Sync.

Last updated: 2/6/25

Configure DNS over HTTPS protection levels in Firefox for Android

DNS over HTTPS (DoH) is a recommended feature that enhances privacy. Learn more about the DoH protection levels you can configure in Firefox for Android.

Last updated: 6/11/25

Clear your browsing history and other personal data on Firefox for Android

Firefox for Android makes it easy for you to delete your browsing information. You can even automatically delete your data every time you quit Firefox.

Last updated: 4/12/23

Turn on/off saved logins, login sync and login autofill in Firefox for Android

Learn how to save, sync and access your logins in Firefox for Android

Last updated: 8/21/24

Grant camera access to Firefox for Android

How to grant camera access so Firefox can scan a QR code.

Created: 9/1/20

Clear cookies and website data for a single domain in Firefox for Android

You can delete your cookies and website data for a single domain in Firefox for Android, without losing your logins for other domains.

Created: 2/22/22

Clear your browsing history in Firefox for Android

Firefox keeps a record of your browsing history. Learn how you can remove items from your history one-by-one, or clear your history entirely.

Last updated: 9/12/23

Lock your private tabs on Firefox for Android

Firefox allows you to add an extra layer of security while navigating in your private browsing mode through biometric authentication methods like face, fingerprint, or PIN unlock for private browsing mode.

Last updated: 3 weeks, 5 days ago

How do you use Adjust in Firefox?

How Adjust is used in Firefox mobile products.

Last updated: 3/7/25

Generate strong passwords in Firefox for Android

Learn how to use the built-in password generator in Firefox on Android to create strong, secure passwords automatically.

Last updated: 5/21/25

How does Firefox for Android use the permissions it requests?

When installing Firefox, Android asks you to grant a number of permissions. This article explains what these are and how they're used.

Last updated: 4/1/25

Send usage data on Firefox mobile browsers

This article describes which data is collected by Firefox for Android, Firefox for iOS, Firefox Focus and Firefox Klar.

Last updated: 4/22/25

Suspicious activity on my Mozilla account

How to protect yourself if suspicious activity is detected on your Mozilla account.

Last updated: 5/14/25

Change your two-step authentication device for your Mozilla account

What to do if you have two-factor authentication (2FA) setup on your account and need to migrate to a new device or phone.

Last updated: 2/6/25

Use Web Apps with Firefox for Android

Learn more about Web apps and how to use them with Firefox for Android.

Last updated: 6/4/25

Usage Data Changes for Firefox for iOS and Android

Firefox began collecting new usage data to support the Firefox for iOS 39 and Android 94 releases to support personalization.

Created: 10/28/21

Global Privacy Control in Firefox for Android

How to make Firefox for Android advise websites that you visit not to sell or share your browsing information.

Last updated: 3/9/24

Firefox connection upgrades - HTTP to HTTPS

Firefox upgrades connections from HTTP to HTTPS to enhance security and protect your data. Learn about server- and browser-initiated upgrades and how they work.

Last updated: 1 week, 2 days ago

Firefox for Android’s protection against fingerprinters

Fingerprinting Protection in Firefox for Android protects you from websites that try to identify you based on a set of unique characteristics.

Last updated: 4/17/25

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