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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

Insecure connection password warning in Firefox

Third-party trackers

Private Browsing on Firefox for Android

Firefox Password Manager - Alerts for breached websites

Manage Enhanced Tracking Protection exceptions

Add Firefox Relay to the Firefox password manager

Sponsors on the home page and New Tab page

Does Firefox share my location with websites?

Configure DNS over HTTPS protection levels in Firefox

Manage marketing data settings in Firefox for Android

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

Introducing Total Cookie Protection in Standard Mode

Delete browsing, search and download history on Firefox

HTTPS-Only Mode in Firefox

How to manage your camera and microphone permissions with Firefox

Use a Primary Password to protect stored logins and passwords

Private Browsing - Use Firefox without saving history

How do I set up Sync on my computer?

Firefox security features warning on Linux

Pop-up blocker settings, exceptions and troubleshooting

About private browsing in Firefox for iOS

HTTPS-Only Mode in Firefox for Android

How does built-in Phishing and Malware Protection work?

Firefox Terms of Use FAQ

How do I turn on the Do Not Track feature?

Global Privacy Control

Secure website certificate

Remote Content in Messages

Manage technical and interaction data collection settings in Firefox

Mobile - Manage Firefox data collection and privacy settings

How to set up Firefox Sync in Firefox for Android

Enhanced Tracking Protection in Firefox for Android

Search suggestions in Firefox

Protect privacy while using Web Authentication

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Firefox connection upgrades - HTTP to HTTPS

Password Manager - Remember, delete and change passwords in Thunderbird

Choose a strong password

Manage daily usage ping data collection settings in Firefox

Automatically trust third-party root certificates

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

Configure DNS over HTTPS protection levels in Firefox for Android

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

Troubleshoot Firefox issues caused by malware

How do I choose what information to sync on Firefox?

SmartBlock for Enhanced Tracking Protection

Introduction to End-to-end encryption in Thunderbird

I found a fake Firefox update

Crash reports in Firefox for Desktop

Control personal device and local network permissions in Firefox

Mozilla Monitor - Frequently asked questions

How Firefox securely saves passwords

Microsoft OAuth Authentication and Thunderbird in 2024

How to use Firefox containers

How to stop Firefox from making automatic connections

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

Mixed content blocking in Firefox

OpenPGP in Thunderbird - HOWTO and FAQ

Site Information panel

How do I change my DNS settings?

Share browser windows or your screen with sites you trust

How do I know the status of my sync?

Firefox DNS over HTTPS

Activate Firefox Relay - Mask your email address

Site Permissions panel

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

Certificate contains the same serial number as another certificate

Clear browsing history in Firefox for iOS

Thunderbird Telemetry

Reset your Mozilla account password to protect your credentials

HTTPS-Only Mode in Firefox Focus for Android

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

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

Remove a synced device from your Mozilla account

DNS over HTTPS (DoH) FAQs

What is Mozilla VPN and how does it work?

Total Cookie Protection and website breakage FAQ

Get started with Mozilla Monitor

Manage your logins with the Firefox Password Manager

Disable Firefox Sync

Oblivious HTTP (OHTTP) explained

Protect your Thunderbird passwords with a Primary Password

Clear your browsing history in Firefox for Android

Protect your container tabs with Mozilla VPN

Firefox privacy and security features

Thunderbird Mobile Telemetry

Resist Fingerprinting

Block and unblock websites with parental controls on Firefox

Enhanced Tracking Protection in Firefox for iOS

Add trusted websites to your allow list in Firefox Focus

Browsing history in Firefox - View the websites you have visited

How do I turn on Mozilla VPN?

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

Create an email mask through Firefox Relay

OpenPGP Recipient Alias Configuration

Firefox Relay - Email and Phone masks

Disable Firefox Sync on a lost phone or tablet

Set up a passcode and Face ID in Firefox for iOS

Open a new private tab in Firefox Focus for Android

Autofill logins on Firefox

Use Web Apps with Firefox for Android

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

What to do after a data breach

Recommended Firefox privacy and security settings for families

Understand Encrypted Client Hello (ECH)

OpenPGP in Thunderbird for Android - How To

How do I share Firefox between people on a computer?

How to stay safe on the web

Share your Android device with a Firefox Guest Session

Change your Mozilla account password

Suspicious activity on my Mozilla account

Firefox service providers and partners

How Firefox Sync keeps your data safe even if TLS fails

Is Mozilla VPN free?

Telemetry collection - Windows default browser trends

Grant camera access to Firefox for Android

Use Multi-Account Containers with Mozilla VPN

Use labels to keep your masks organized in Firefox Relay

Install the Firefox Relay extension on Firefox for desktop

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

Mozilla VPN - FAQ

Disable password saving in Firefox

Block deceptive content and dangerous downloads in Firefox

Mask your phone number with Relay Phone Masking

Resolve breaches with Mozilla Monitor

How do I change my Privacy features?

Encrypted Client Hello (ECH) - Frequently asked questions

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

Privacy-Preserving Attribution

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

How Review Checker preserves user privacy

Manage marketing data settings in Firefox for Desktop

HTTPS-First upgrades to secure connections

Firefox for Android’s protection against fingerprinters

Lock your private tabs on Firefox for Android

Create secure passwords to keep your identity safe

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?

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

Keep Private Browsing tabs open after exiting Firefox

About Firefox Desktop Attribution

Firefox Focus for Android - Frequently asked questions

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 Google Firebase in Firefox?

How do you use Adjust in Firefox?

Safe browsing in Firefox Focus

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?

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

Primary Password is replacing Master Password in Thunderbird

View and control data collected by Mozilla VPN

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

Quickly access previously generated masks

Unsafe properties of OpenPGP keys might be ignored

Safari Integration in Firefox Focus for iOS

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

Change site permissions in Firefox Focus for Android

Prerequisite for sending an encrypted email message

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 report an issue with Firefox Relay?

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

How does Firefox Focus 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

Relay Phone Masking FAQ

Global Privacy Control in Firefox for Android

Data Loss Prevention

Generate strong passwords in Firefox for Android

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

Getting started with Thunderbird for Android

Manage daily usage ping data collection settings in Firefox Focus

Understand unexpected script warnings in Firefox

Control personal device and local network permissions on Firefox for Android

Fix phone masking issues and protect voicemail privacy in Relay

Firefox Homepage Lift Studies

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