Privacy and security

Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Enhanced Tracking Protection in Firefox for desktop

Third-party trackers

Private Browsing on Firefox for Android

Configure DNS over HTTPS protection levels in Firefox

Does Firefox share my location with websites?

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Choose a strong password

Automatically fill in credit card and payment method data on Web forms

Private Browsing in Firefox for iOS

How do I set up Sync on my computer?

Global Privacy Control

How do I turn on the Do Not Track feature?

HTTPS-Only Mode in Firefox

Protect privacy while using Web Authentication

Use a Primary Password to protect stored logins and passwords

Private Browsing - Use Firefox without saving history

Firefox Password Manager - Alerts for breached websites

How to manage your camera and microphone permissions with Firefox

Delete browsing, search and download history on Firefox

Introducing Total Cookie Protection in Standard Mode

Pop-up blocker settings, exceptions and troubleshooting

Enhanced Tracking Protection in Firefox for Android

Remote Content in Messages

Pocket website cookies FAQ

How does built-in Phishing and Malware Protection work?

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Mozilla Monitor - Frequently asked questions

HTTPS-Only Mode in Firefox for Android

Privacy-Preserving Attribution

Troubleshoot Firefox issues caused by malware

Automatically trust third-party root certificates

Telemetry collection and deletion

SmartBlock for Enhanced Tracking Protection

How to set up Firefox Sync in Firefox for Android

Password Manager - Remember, delete and change passwords in Thunderbird

How do I choose what information to sync on Firefox?

Why are some add-ons not allowed on sites restricted by Mozilla?

Mixed content blocking in Firefox

Microsoft OAuth Authentication and Thunderbird in 2024

DNS over HTTPS (DoH) FAQs

How to use Firefox containers

Site Information panel

I found a fake Firefox update

Secure Firefox passwords with device sign-in

Enhanced Tracking Protection in Firefox for iOS

Introduction to End-to-end encryption in Thunderbird

Resist Fingerprinting

Clear browsing history in Firefox for iOS

Secure website certificate

Firefox DNS over HTTPS

Multi-Hop - Encrypt your data twice for enhanced security while using Mozilla VPN

Setup your email account for using End-To-End Encryption

How to stop Firefox from making automatic connections

Share browser windows or your screen with sites you trust

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

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

Protect your container tabs with Mozilla VPN

Browsing history in Firefox - View the websites you have visited

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

Get started with Mozilla Monitor

Certificate contains the same serial number as another certificate

OpenPGP in Thunderbird - HOWTO and FAQ

Site Permissions panel

Firefox privacy and security features

How do I change my DNS settings?

How does Monitor Plus work?

Autofill logins on Firefox

Disable Firefox Sync

OpenPGP Recipient Alias Configuration

Change your Mozilla account password

Manage your logins with the Firefox Password Manager

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

Total Cookie Protection and website breakage FAQ

Firefox connection upgrades - HTTP to HTTPS

How do I tell if my connection to a website is secure?

Protect your Thunderbird passwords with a Primary Password

Clear your browsing history in Firefox for Android

Set up a passcode and Face ID in Firefox for iOS

How Firefox securely saves passwords

Is Mozilla VPN free?

Use Multi-Account Containers with Mozilla VPN

Search suggestions in Firefox

Remove a synced device from your Mozilla account

Firefox Subprocessor List

How Firefox Sync keeps your data safe even if TLS fails

Thunderbird Telemetry

Create an email mask through Firefox Relay

Mozilla VPN - FAQ

Getting started with Thunderbird for Android

HTTPS-First upgrades to secure connections

How to stay safe on the web

Send usage data on Firefox mobile browsers

How do I know the status of my sync?

Telemetry collection - Windows default browser trends

Grant camera access to Firefox for Android

What is Mozilla VPN and how does it work?

Install the Firefox Relay extension on Google Chrome

Recommended Firefox privacy and security settings for families

Disable password saving in Firefox

How do I monitor multiple email addresses?

Understand Encrypted Client Hello (ECH)

Sign in to a Mozilla account using 3rd-party authentication

Relay Phone Masking FAQ

Disable Firefox Sync on a lost phone or tablet

Share data with Mozilla to help improve Firefox

How do I share Firefox between people on a computer?

Suspicious activity on my Mozilla account

About Firefox Desktop Attribution

How do you use Google Firebase in Firefox?

How do I turn on Mozilla VPN?

Activate Firefox Relay - Mask your email address

Use Web Apps with Firefox for Android

Exclude applications from Mozilla VPN protection

Usage Data Changes for Firefox for iOS and Android

Firefox Relay - Email and Phone masks

What to do after a data breach

Search your browsing history in Firefox for iOS

Prerequisite for sending an encrypted email message

Thunderbird and OpenPGP Alias Keys

OpenPGP keys might be authentic or counterfeit

How do I block phone calls or texts to my Relay Phone mask?

Resolve breaches with Mozilla Monitor

General questions about privacy protection scans

Encrypted Client Hello (ECH) - Frequently asked questions

Get started with Monitor Plus

Data broker scan

Instructions for obtaining a personal S/MIME certificate by creating a CSR

Using OpenPGP secret keys that advertise features that are not supported by Thunderbird

Monthly Monitor Report Email

Monitor status indicators

Generate strong passwords in Firefox for Android

Thunderbird Android Telemetry

OpenPGP in Thunderbird for Android - How To

Block and unblock websites with parental controls on Firefox

How do I enable the Firefox OS phone lock?

Master password requested but not set Redirect 1

Certificates

Why does Thunderbird warn me that my server don't use encryption?

Digitally Signing and Encrypting Messages

How Thunderbird’s scam detection works?

How can I digitally sign and encrypt emails?

Thunderbird and Logjam

Keep Private Browsing tabs open after exiting Firefox

Clear your cache without clearing your browsing history

Private Browsing in Firefox Lite

Firefox Monitor

How do you use Adjust in Firefox?

Tracking Protection in Firefox Preview

"Certificate cannot be trusted" warning in Kazakhstan

Change your two-step authentication device for your Mozilla account

Firefox Lite - What vendors do you use that could receive my data?

My privacy settings were changed from Custom to Standard

Compatibility with Exploit protection on Windows

Primary Password is replacing Master Password

Disable email forwarding - Stop receiving emails sent through your masks

Primary Password is replacing Master Password in Thunderbird

What information does Mozilla VPN collect?

How do I reset Mozilla VPN?

What to do after you have subscribed to Mozilla VPN

Install the Firefox Relay extension on Firefox for desktop

Quickly access previously generated masks

Unsafe properties of OpenPGP keys might be ignored

What are email trackers and how can I block them with Firefox Relay?

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

Mask your phone number with Relay Phone Masking

Relay Phone Masking - How long can I talk when I get a call?

How does Firefox for iOS use the permissions it requests?

How do I change my Privacy features?

How to automatically label your new email masks

Pocket for iOS App privacy information

What permissions does Pocket for Android require and why?

How to upgrade to Monitor Plus?

Global Privacy Control in Firefox for Android

How Review Checker preserves user privacy

Securing a New Partner for Monitor Plus

Why does Monitor show me in a data breach for a site I never signed up to?

Placeholder Bug 1947157

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