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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?

Choose a strong password

Add Firefox Relay to the Firefox password manager

HTTPS-Only Mode in Firefox

Protect privacy while using Web Authentication

Private Browsing in Firefox for iOS

Private Browsing - Use Firefox without saving history

Manage technical and interaction data collection settings in Firefox

How do I set up Sync on my computer?

Configure DNS over HTTPS protection levels in Firefox

Delete browsing, search and download history on Firefox

How to manage your camera and microphone permissions with Firefox

Introducing Total Cookie Protection in Standard Mode

Firefox Password Manager - Alerts for breached websites

Global Privacy Control

Use a Primary Password to protect stored logins and passwords

Pop-up blocker settings, exceptions and troubleshooting

How do I turn on the Do Not Track feature?

How does built-in Phishing and Malware Protection work?

Mobile - Manage Firefox data collection and privacy settings

Remote Content in Messages

Enhanced Tracking Protection in Firefox for Android

Mozilla Monitor - Frequently asked questions

Pocket website cookies FAQ

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

HTTPS-Only Mode in Firefox for Android

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Firefox security features warning on Linux

Troubleshoot Firefox issues caused by malware

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

How to set up Firefox Sync in Firefox for Android

Privacy-Preserving Attribution

Automatically trust third-party root certificates

How do I choose what information to sync on Firefox?

Secure website certificate

Password Manager - Remember, delete and change passwords in Thunderbird

Firefox connection upgrades - HTTP to HTTPS

SmartBlock for Enhanced Tracking Protection

How to use Firefox containers

Mixed content blocking in Firefox

Introduction to End-to-end encryption in Thunderbird

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

Site Information panel

Microsoft OAuth Authentication and Thunderbird in 2024

Resist Fingerprinting

Firefox DNS over HTTPS

How to stop Firefox from making automatic connections

Enhanced Tracking Protection in Firefox for iOS

Certificate contains the same serial number as another certificate

I found a fake Firefox update

Autofill logins on Firefox

Manage your logins with the Firefox Password Manager

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

Protect your Thunderbird passwords with a Primary Password

DNS over HTTPS (DoH) FAQs

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

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

How do I change my DNS settings?

How does Monitor Plus work?

Activate Firefox Relay - Mask your email address

What is Mozilla VPN and how does it work?

HTTPS-Only Mode in Firefox Focus for Android

Getting started with Thunderbird for Android

HTTPS-First upgrades to secure connections

Search suggestions in Firefox

Share browser windows or your screen with sites you trust

Firefox Focus for Android - Frequently asked questions

Protect your container tabs with Mozilla VPN

How Firefox securely saves passwords

Manage marketing data settings in Firefox for Android

Oblivious HTTP (OHTTP) explained

Change your two-step authentication device for your Mozilla account

Disable Firefox Sync

OpenPGP in Thunderbird - HOWTO and FAQ

Site Permissions panel

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

Prerequisite for sending an encrypted email message

Clear your browsing history in Firefox for Android

Browsing history in Firefox - View the websites you have visited

How do I turn on Mozilla VPN?

Telemetry collection - Windows default browser trends

Total Cookie Protection and website breakage FAQ

Safari Integration in Firefox Focus for iOS

Firefox privacy and security features

Get started with Mozilla Monitor

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

Understand Encrypted Client Hello (ECH)

Thunderbird Android Telemetry

OpenPGP in Thunderbird for Android - How To

Block and unblock websites with parental controls on Firefox

Clear browsing history in Firefox for iOS

Is Mozilla VPN free?

Create an email mask through Firefox Relay

OpenPGP Recipient Alias Configuration

Mozilla VPN - FAQ

Disable password saving in Firefox

How do I report an issue with Firefox Relay?

How to stay safe on the web

Set up a passcode and Face ID in Firefox for iOS

Change your Mozilla account password

Suspicious activity on my Mozilla account

How do I know the status of my sync?

Thunderbird Telemetry

What information does Mozilla VPN collect?

Use Multi-Account Containers with Mozilla VPN

Install the Firefox Relay extension on Google Chrome

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

Thunderbird and OpenPGP Alias Keys

Recommended Firefox privacy and security settings for families

How do I change my Privacy features?

Encrypted Client Hello (ECH) - Frequently asked questions

Relay Phone Masking FAQ

Data Loss Prevention

Manage marketing data settings in Firefox for Desktop

How does Firefox for Android use the permissions it requests?

How do I share Firefox between people on a computer?

Digitally Signing and Encrypting Messages

Keep Private Browsing tabs open after exiting Firefox

Block cookies in Firefox Focus for Android

Remove a synced device from your Mozilla account

Safe browsing in Firefox Focus

Add trusted websites to your allow list in Firefox Focus

How Firefox Sync keeps your data safe even if TLS fails

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

Disable email forwarding - Stop receiving emails sent through your masks

Grant camera access to Firefox for Android

Use Web Apps with Firefox for Android

Primary Password is replacing Master Password in Thunderbird

Exclude applications from Mozilla VPN protection

How do I reset Mozilla VPN?

Firefox Relay - Email and Phone masks

What to do after a data breach

Mask your phone number with Relay Phone Masking

How does Firefox for iOS use the permissions it requests?

Resolve breaches with Mozilla Monitor

How to automatically label your new email masks

Data broker scan

Monitor status indicators

Generate strong passwords in Firefox for Android

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

Disable Firefox Sync on a lost phone or tablet

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

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

Compatibility with Exploit protection on Windows

Primary Password is replacing Master Password

Use labels to keep your masks organized in Firefox Relay

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

How to opt out of studies on Firefox Focus for Android

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?

Change site permissions in Firefox Focus for Android

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 does Firefox Focus for Android use the permissions it requests?

How do I monitor multiple email addresses?

General questions about privacy protection scans

Pocket for iOS App privacy information

What permissions does Pocket for Android require and why?

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

Get started with Monitor Plus

How to upgrade to Monitor Plus?

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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