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

Avoid and report Mozilla tech support scams

Third-party trackers

Insecure connection password warning in Firefox

Private Browsing on Firefox for Android

Does Firefox share my location with websites?

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

Add Firefox Relay to the Firefox password manager

Choose a strong password

HTTPS-Only Mode in Firefox

Private Browsing - Use Firefox without saving history

Protect privacy while using Web Authentication

Delete browsing, search and download history on Firefox

How to manage your camera and microphone permissions with Firefox

Private Browsing in Firefox for iOS

How do I set up Sync on my computer?

Firefox Password Manager - Alerts for breached websites

Introducing Total Cookie Protection in Standard Mode

Use a Primary Password to protect stored logins and passwords

How do I turn on the Do Not Track feature?

Pop-up blocker settings, exceptions and troubleshooting

Global Privacy Control

Remote Content in Messages

How does built-in Phishing and Malware Protection work?

Enhanced Tracking Protection in Firefox for Android

Manage technical and interaction data collection settings in Firefox

HTTPS-Only Mode in Firefox for Android

Pocket website cookies FAQ

Enhanced Tracking Protection in Firefox for iOS

Mozilla Monitor - Frequently asked questions

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Troubleshoot Firefox issues caused by malware

Privacy-Preserving Attribution

How to set up Firefox Sync in Firefox for Android

Manage daily usage ping data collection settings in Firefox

Secure website certificate

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

Automatically trust third-party root certificates

How do I choose what information to sync on Firefox?

Password Manager - Remember, delete and change passwords in Thunderbird

Firefox connection upgrades - HTTP to HTTPS

How to use Firefox containers

HTTPS-First upgrades to secure connections

Mixed content blocking in Firefox

Search suggestions in Firefox

Introduction to End-to-end encryption in Thunderbird

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

Microsoft OAuth Authentication and Thunderbird in 2024

Resist Fingerprinting

Firefox security features warning on Linux

How to stop Firefox from making automatic connections

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

Protect your Thunderbird passwords with a Primary Password

SmartBlock for Enhanced Tracking Protection

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

How do I change my DNS settings?

Site Information panel

I found a fake Firefox update

Manage your logins with the Firefox Password Manager

Firefox DNS over HTTPS

Configure DNS over HTTPS protection levels in Firefox

Getting started with Thunderbird for Android

OpenPGP in Thunderbird - HOWTO and FAQ

Firefox privacy and security features

Firefox Focus for Android - Frequently asked questions

Autofill logins on Firefox

Activate Firefox Relay - Mask your email address

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

Certificate contains the same serial number as another certificate

How Firefox Sync keeps your data safe even if TLS fails

Change your two-step authentication device for your Mozilla account

How do I turn on Mozilla VPN?

Protect your container tabs with Mozilla VPN

DNS over HTTPS (DoH) FAQs

Is Mozilla VPN free?

What is Mozilla VPN and how does it work?

HTTPS-Only Mode in Firefox Focus for Android

Thunderbird Android Telemetry

Mobile - Manage Firefox data collection and privacy settings

How Firefox securely saves passwords

Browsing history in Firefox - View the websites you have visited

Disable Firefox Sync

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

How does Monitor Plus work?

Clear browsing history in Firefox for iOS

Set up a passcode and Face ID in Firefox for iOS

Site Permissions panel

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

Get started with Mozilla Monitor

Understand Encrypted Client Hello (ECH)

OpenPGP in Thunderbird for Android - How To

Oblivious HTTP (OHTTP) explained

Block and unblock websites with parental controls on Firefox

Clear your browsing history in Firefox for Android

Share browser windows or your screen with sites you trust

How do I know the status of my sync?

OpenPGP Recipient Alias Configuration

Mozilla VPN - FAQ

Prerequisite for sending an encrypted email message

Disable password saving in Firefox

Mask your phone number with Relay Phone Masking

Resolve breaches with Mozilla Monitor

How does Firefox Focus for iOS use the permissions it requests?

Disable Firefox Sync on a lost phone or tablet

Digitally Signing and Encrypting Messages

Keep Private Browsing tabs open after exiting Firefox

Remove a synced device from your Mozilla account

Add trusted websites to your allow list in Firefox Focus

Thunderbird Telemetry

Primary Password is replacing Master Password in Thunderbird

What information does Mozilla VPN collect?

Use Multi-Account Containers with Mozilla VPN

How to opt out of studies on Firefox Focus for Android

Total Cookie Protection and website breakage FAQ

Install the Firefox Relay extension on Google Chrome

Encrypted Client Hello (ECH) - Frequently asked questions

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

Data Loss Prevention

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

How do I share Firefox between people on a computer?

How to stay safe on the web

Change your Mozilla account password

Block cookies in Firefox Focus for Android

Safe browsing in Firefox Focus

Telemetry collection - Windows default browser trends

Create an email mask through Firefox Relay

Disable email forwarding - Stop receiving emails sent through your masks

How do I reset Mozilla VPN?

Use labels to keep your masks organized in Firefox Relay

Firefox Relay - Email and Phone masks

What to do after a data breach

Recommended Firefox privacy and security settings for families

How does Firefox for iOS use the permissions it requests?

Relay Phone Masking FAQ

Generate strong passwords in Firefox for Android

Manage marketing data settings in Firefox for Desktop

Crash reports in Firefox for Desktop

How does Firefox for Android use the permissions it requests?

Share data with Mozilla to help improve Firefox

How do I enable the Firefox OS phone lock?

Share your Android device with a Firefox Guest Session

Master password requested but not set Redirect 1

Certificates

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

How Thunderbird’s scam detection works?

How can I digitally sign and encrypt emails?

Thunderbird and Logjam

Send usage data on Firefox mobile browsers

Suspicious activity on my Mozilla account

About Firefox Desktop Attribution

Open a new private tab in Firefox Focus for Android

Clear your cache without clearing your browsing history

Tracking Protection on Firefox Focus for iOS

Private Browsing in Firefox Lite

Firefox Monitor

How do you use Google Firebase in Firefox?

How do you use Adjust in Firefox?

Tracking Protection in Firefox Preview

Firefox Subprocessor List

"Certificate cannot be trusted" warning in Kazakhstan

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

Telemetry collection and deletion

My privacy settings were changed from Custom to Standard

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

Compatibility with Exploit protection on Windows

Primary Password is replacing Master Password

Grant camera access to Firefox for Android

Use Web Apps with Firefox for Android

Exclude applications from Mozilla VPN protection

Usage Data Changes for Firefox for iOS and Android

What to do after you have subscribed to Mozilla VPN

Install the Firefox Relay extension on Firefox for desktop

How to opt out of studies on Firefox Focus for iOS

Quickly access previously generated masks

Unsafe properties of OpenPGP keys might be ignored

Safari Integration in Firefox iOS

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

Change site permissions in Firefox Focus for Android

Thunderbird and OpenPGP Alias Keys

OpenPGP keys might be authentic or counterfeit

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

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

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

How do I report an issue with Firefox Relay?

How does Firefox Focus for Android use the permissions it requests?

How do I monitor multiple email addresses?

How do I change my Privacy features?

General questions about privacy protection scans

How to automatically label your new email masks

Pocket for iOS App privacy information

What permissions does Pocket for Android require and why?

Get started with Monitor Plus

How to upgrade to Monitor Plus?

Data broker scan

Global Privacy Control in Firefox for Android

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

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