Privacy and security

Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Avoid and report Mozilla tech support scams

Third-party trackers

Private Browsing on Firefox for Android

Insecure connection password warning in Firefox

Does Firefox share my location with websites?

Configure DNS over HTTPS protection levels in Firefox

Enhanced Tracking Protection in Firefox for desktop

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

Add Firefox Relay to the Firefox password manager

Private Browsing - Use Firefox without saving history

Manage technical and interaction data collection settings in Firefox

HTTPS-Only Mode in Firefox

Private Browsing in Firefox for iOS

Firefox Password Manager - Alerts for breached websites

Protect privacy while using Web Authentication

How do I set up Sync on my computer?

Delete browsing, search and download history on Firefox

How to manage your camera and microphone permissions with Firefox

Manage marketing data settings in Firefox for Android

Firefox security features warning on Linux

Mobile - Manage Firefox data collection and privacy settings

Pop-up blocker settings, exceptions and troubleshooting

Mozilla Monitor - Frequently asked questions

How does built-in Phishing and Malware Protection work?

Global Privacy Control

How do I turn on the Do Not Track feature?

Remote Content in Messages

Enhanced Tracking Protection in Firefox for Android

Pocket website cookies FAQ

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Secure website certificate

How to set up Firefox Sync in Firefox for Android

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

Troubleshoot Firefox issues caused by malware

Introducing Total Cookie Protection in Standard Mode

How does Monitor Plus work?

SmartBlock for Enhanced Tracking Protection

Firefox connection upgrades - HTTP to HTTPS

Automatically trust third-party root certificates

Privacy-Preserving Attribution

Crash reports in Firefox for Desktop

Password Manager - Remember, delete and change passwords in Thunderbird

HTTPS-Only Mode in Firefox for Android

How do I choose what information to sync on Firefox?

Mixed content blocking in Firefox

Enhanced Tracking Protection in Firefox for iOS

Introduction to End-to-end encryption in Thunderbird

Resist Fingerprinting

OpenPGP in Thunderbird - HOWTO and FAQ

Site Information panel

I found a fake Firefox update

Search suggestions in Firefox

Use a Primary Password to protect stored logins and passwords

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

How to stop Firefox from making automatic connections

Autofill logins on Firefox

Choose a strong password

How to use Firefox containers

Firefox DNS over HTTPS

Site Permissions panel

Protect your Thunderbird passwords with a Primary Password

Browsing history in Firefox - View the websites you have visited

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

Firefox privacy and security features

How do I change my DNS settings?

DNS over HTTPS (DoH) FAQs

What is Mozilla VPN and how does it work?

HTTPS-Only Mode in Firefox Focus for Android

Microsoft OAuth Authentication and Thunderbird in 2024

Manage daily usage ping data collection settings in Firefox

Certificate contains the same serial number as another certificate

Share browser windows or your screen with sites you trust

Manage your logins with the Firefox Password Manager

Activate Firefox Relay - Mask your email address

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

Getting started with Thunderbird for Android

Clear browsing history in Firefox for iOS

Remove a synced device from your Mozilla account

Protect your container tabs with Mozilla VPN

Change your two-step authentication device for your Mozilla account

Grant camera access to Firefox for Android

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

Disable Firefox Sync on a lost phone or tablet

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

Firefox Focus for Android - Frequently asked questions

How do I know the status of my sync?

How do I turn on Mozilla VPN?

Mozilla VPN - FAQ

Get started with Mozilla Monitor

How do I change my Privacy features?

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

OpenPGP in Thunderbird for Android - How To

How does Firefox for Android use the permissions it requests?

Set up a passcode and Face ID in Firefox for iOS

How Firefox securely saves passwords

Telemetry collection - Windows default browser trends

Total Cookie Protection and website breakage FAQ

Recommended Firefox privacy and security settings for families

Resolve breaches with Mozilla Monitor

Encrypted Client Hello (ECH) - Frequently asked questions

Oblivious HTTP (OHTTP) explained

Block and unblock websites with parental controls on Firefox

Disable Firefox Sync

Is Mozilla VPN free?

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

Primary Password is replacing Master Password

Thunderbird Telemetry

Primary Password is replacing Master Password in Thunderbird

OpenPGP Recipient Alias Configuration

What to do after a data breach

Prerequisite for sending an encrypted email message

Disable password saving in Firefox

Mask your phone number with Relay Phone Masking

How do I report an issue with Firefox Relay?

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

Get started with Monitor Plus

Data broker scan

Monthly Monitor Report Email

Clear your browsing history in Firefox for Android

How do you use Google Firebase in Firefox?

Add trusted websites to your allow list in Firefox Focus

Disable email forwarding - Stop receiving emails sent through your masks

Use Multi-Account Containers with Mozilla VPN

Use labels to keep your masks organized in Firefox Relay

Firefox Relay - Email and Phone masks

Quickly access previously generated masks

Safari Integration in Firefox Focus for iOS

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

Block deceptive content and dangerous downloads in Firefox

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

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

Pocket for iOS App privacy information

Understand Encrypted Client Hello (ECH)

Relay Phone Masking FAQ

How to upgrade to Monitor Plus?

Global Privacy Control in Firefox for Android

Thunderbird Mobile Telemetry

Manage marketing data settings in Firefox for Desktop

HTTPS-First upgrades to secure connections

Firefox for Android’s protection against fingerprinters

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

Create secure passwords to keep your identity safe

Share data with Mozilla to help improve Firefox

How do I share Firefox between people on a computer?

How to stay safe on the web

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?

Digitally Signing and Encrypting Messages

How Thunderbird’s scam detection works?

How can I digitally sign and encrypt emails?

Thunderbird and Logjam

Send usage data on Firefox mobile browsers

Change your Mozilla account password

Suspicious activity on my Mozilla account

Keep Private Browsing tabs open after exiting Firefox

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

Block cookies in Firefox Focus for Android

Private Browsing in Firefox Lite

Firefox Monitor

How do you use Adjust in Firefox?

Safe browsing in Firefox Focus

Tracking Protection in Firefox Preview

Firefox service providers and partners

"Certificate cannot be trusted" warning in Kazakhstan

How Firefox Sync keeps your data safe even if TLS fails

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

Compatibility with Exploit protection on Windows

Create an email mask through Firefox Relay

Use Web Apps with Firefox for Android

What information does Mozilla VPN collect?

Exclude applications from Mozilla VPN protection

How do I reset Mozilla VPN?

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

Unsafe properties of OpenPGP keys might be ignored

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

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 does Firefox for iOS use the permissions it requests?

How do I monitor multiple email addresses?

General questions about privacy protection scans

How to automatically label your new email masks

What permissions does Pocket for Android require and why?

Data Loss Prevention

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

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