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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

Third-party trackers

Avoid and report Mozilla tech support scams

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

Add Firefox Relay to the Firefox password manager

HTTPS-Only Mode in Firefox

Protect privacy while using Web Authentication

Choose a strong password

Manage technical and interaction data collection settings in Firefox

Private Browsing in Firefox for iOS

Private Browsing - Use Firefox without saving history

How do I set up Sync on my computer?

Delete browsing, search and download history on Firefox

Mobile - Manage Firefox data collection and privacy settings

How to manage your camera and microphone permissions with Firefox

Introducing Total Cookie Protection in Standard Mode

Pop-up blocker settings, exceptions and troubleshooting

Firefox Password Manager - Alerts for breached websites

Use a Primary Password to protect stored logins and passwords

Global Privacy Control

How do I turn on the Do Not Track feature?

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

How does built-in Phishing and Malware Protection work?

Mozilla Monitor - Frequently asked questions

Remote Content in Messages

Pocket website cookies FAQ

Firefox security features warning on Linux

HTTPS-Only Mode in Firefox for Android

Enhanced Tracking Protection in Firefox for Android

Troubleshoot Firefox issues caused by malware

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

How to set up Firefox Sync in Firefox for Android

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

Privacy-Preserving Attribution

Password Manager - Remember, delete and change passwords in Thunderbird

Secure website certificate

Automatically trust third-party root certificates

Firefox connection upgrades - HTTP to HTTPS

How do I choose what information to sync on Firefox?

How to use Firefox containers

Mixed content blocking in Firefox

Site Information panel

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

Enhanced Tracking Protection in Firefox for iOS

Introduction to End-to-end encryption in Thunderbird

Microsoft OAuth Authentication and Thunderbird in 2024

Resist Fingerprinting

Firefox DNS over HTTPS

How to stop Firefox from making automatic connections

I found a fake Firefox update

Manage your logins with the Firefox Password Manager

How does Monitor Plus work?

Certificate contains the same serial number as another certificate

Autofill logins on Firefox

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

Search suggestions in Firefox

Manage daily usage ping data collection settings in Firefox

Manage marketing data settings in Firefox for Android

Share browser windows or your screen with sites you trust

Activate Firefox Relay - Mask your email address

Get started with Mozilla Monitor

HTTPS-First upgrades to secure connections

Oblivious HTTP (OHTTP) explained

How Firefox securely saves passwords

What is Mozilla VPN and how does it work?

How do I change my DNS settings?

Protect your container tabs with Mozilla VPN

Disable Firefox Sync

OpenPGP in Thunderbird - HOWTO and FAQ

Site Permissions panel

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

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

Getting started with Thunderbird for Android

Firefox Focus for Android - Frequently asked questions

How do I turn on Mozilla VPN?

HTTPS-Only Mode in Firefox Focus for Android

Total Cookie Protection and website breakage FAQ

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

Safari Integration in Firefox Focus for iOS

Prerequisite for sending an encrypted email message

Recommended Firefox privacy and security settings for families

How to stay safe on the web

Change your two-step authentication device for your Mozilla account

Browsing history in Firefox - View the websites you have visited

Telemetry collection - Windows default browser trends

Create an email mask through Firefox Relay

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

Firefox privacy and security features

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

Understand Encrypted Client Hello (ECH)

Crash reports in Firefox for Desktop

Digitally Signing and Encrypting Messages

Clear your browsing history in Firefox for Android

Clear browsing history in Firefox for iOS

Suspicious activity on my Mozilla account

How do I know the status of my sync?

Is Mozilla VPN free?

SmartBlock for Enhanced Tracking Protection

What to do after a data breach

Mozilla VPN - FAQ

Disable password saving in Firefox

How do I report an issue with Firefox Relay?

Encrypted Client Hello (ECH) - Frequently asked questions

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

Thunderbird Android Telemetry

Block and unblock websites with parental controls on Firefox

How does Firefox for Android use the permissions it requests?

How do I share Firefox between people on a computer?

Set up a passcode and Face ID in Firefox for iOS

How Firefox Sync keeps your data safe even if TLS fails

Thunderbird Telemetry

What information does Mozilla VPN collect?

OpenPGP Recipient Alias Configuration

Exclude applications from Mozilla VPN protection

Firefox Relay - Email and Phone masks

Install the Firefox Relay extension on Google Chrome

Thunderbird and OpenPGP Alias Keys

Resolve breaches with Mozilla Monitor

How do I change my Privacy features?

Data Loss Prevention

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

OpenPGP in Thunderbird for Android - How To

Change your Mozilla account password

Block cookies in Firefox Focus for Android

Remove a synced device from your Mozilla account

How do you use Google Firebase in Firefox?

Add trusted websites to your allow list in Firefox Focus

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

Grant camera access to Firefox for Android

Use Web Apps with Firefox for Android

Primary Password is replacing Master Password in Thunderbird

How do I reset Mozilla VPN?

Use Multi-Account Containers with Mozilla VPN

What to do after you have subscribed to Mozilla VPN

Mask your phone number with Relay Phone Masking

How to automatically label your new email masks

What permissions does Pocket for Android require and why?

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

Relay Phone Masking FAQ

Get started with Monitor Plus

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?

Manage marketing data settings in Firefox for Desktop

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

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

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 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

Disable email forwarding - Stop receiving emails sent through your masks

Use labels to keep your masks organized in Firefox Relay

Usage Data Changes for Firefox for iOS and Android

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 for iOS use the permissions it requests?

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

How to upgrade to Monitor Plus?

Global Privacy Control in Firefox for Android

Monthly Monitor Report Email

How Review Checker preserves user privacy

Securing a New Partner for Monitor Plus

Manage daily usage ping data collection settings in Firefox Focus

Firefox for Android’s protection against fingerprinters

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