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Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Firefox Terms of Use FAQ

Avoid and report Mozilla tech support scams

Enhanced Tracking Protection in Firefox for desktop

Insecure connection password warning in Firefox

Third-party trackers

Private Browsing on Firefox for Android

Manage marketing data settings in Firefox for Android

Firefox Password Manager - Alerts for breached websites

Add Firefox Relay to the Firefox password manager

Does Firefox share my location with websites?

Configure DNS over HTTPS protection levels in Firefox

How do I set up Sync on my computer?

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

Introducing Total Cookie Protection in Standard Mode

Private Browsing - Use Firefox without saving history

How to manage your camera and microphone permissions with Firefox

Delete browsing, search and download history on Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Pop-up blocker settings, exceptions and troubleshooting

HTTPS-Only Mode in Firefox

How does built-in Phishing and Malware Protection work?

Firefox security features warning on Linux

Use a Primary Password to protect stored logins and passwords

Global Privacy Control

About private browsing in Firefox for iOS

Secure website certificate

Remote Content in Messages

Enhanced Tracking Protection in Firefox for Android

Mobile - Manage Firefox data collection and privacy settings

How do I turn on the Do Not Track feature?

HTTPS-Only Mode in Firefox for Android

Manage technical and interaction data collection settings in Firefox

How to set up Firefox Sync in Firefox for Android

Manage daily usage ping data collection settings in Firefox

Configure DNS over HTTPS protection levels in Firefox for Android

Firefox connection upgrades - HTTP to HTTPS

Sponsors on the home page and New Tab page

Protect privacy while using Web Authentication

Manage Enhanced Tracking Protection exceptions

Troubleshoot Firefox issues caused by malware

Search suggestions in Firefox

Choose a strong password

Mozilla Monitor - Frequently asked questions

Automatically trust third-party root certificates

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

I found a fake Firefox update

Password Manager - Remember, delete and change passwords in Thunderbird

Control personal device and local network permissions in Firefox

How do I choose what information to sync on Firefox?

SmartBlock for Enhanced Tracking Protection

Introduction to End-to-end encryption in Thunderbird

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

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

Mixed content blocking in Firefox

Resist Fingerprinting

How to use Firefox containers

Firefox DNS over HTTPS

Share browser windows or your screen with sites you trust

Site Information panel

Oblivious HTTP (OHTTP) explained

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

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

How do I change my DNS settings?

How to stop Firefox from making automatic connections

Protect your Thunderbird passwords with a Primary Password

Certificate contains the same serial number as another certificate

Clear browsing history in Firefox for iOS

What is Mozilla VPN and how does it work?

Site Permissions panel

Lock your private tabs on Firefox for Android

Activate Firefox Relay - Mask your email address

HTTPS-Only Mode in Firefox Focus for Android

How Firefox securely saves passwords

Manage your logins with the Firefox Password Manager

Autofill logins on Firefox

DNS over HTTPS (DoH) FAQs

Manage marketing data settings in Firefox for Desktop

Crash reports in Firefox for Desktop

Enhanced Tracking Protection in Firefox for iOS

How do I know the status of my sync?

OpenPGP in Thunderbird - HOWTO and FAQ

Use Web Apps with Firefox for Android

Total Cookie Protection and website breakage FAQ

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

Microsoft OAuth Authentication and Thunderbird in 2024

Disable Firefox Sync on a lost phone or tablet

Clear your browsing history in Firefox for Android

Suspicious activity on my Mozilla account

Remove a synced device from your Mozilla account

Add trusted websites to your allow list in Firefox Focus

Mozilla service providers and partners

How Firefox Sync keeps your data safe even if TLS fails

Disable Firefox Sync

How do I turn on Mozilla VPN?

Create an email mask through Firefox Relay

Grant camera access to Firefox for Android

OpenPGP Recipient Alias Configuration

Firefox privacy and security features

Global Privacy Control in Firefox for Android

Getting started with Thunderbird for Android

Set up a passcode and Face ID in Firefox for iOS

Protect your container tabs with Mozilla VPN

Firefox Relay - Email and Phone masks

How do I monitor multiple email addresses?

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

Privacy-Preserving Attribution

OpenPGP in Thunderbird for Android - How To

Reset your Mozilla account password to protect your credentials

How to stay safe on the web

Change your Mozilla account password

Keep Private Browsing tabs open after exiting Firefox

Firefox Focus for Android - Frequently asked questions

Block cookies in Firefox Focus for Android

Change your two-step authentication device for your Mozilla account

Browsing history in Firefox - View the websites you have visited

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

View and control data collected by 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

Thunderbird and OpenPGP Alias Keys

Block deceptive content and dangerous downloads in Firefox

Mask your phone number with Relay Phone Masking

How does Firefox for iOS use the permissions it requests?

Get started with Mozilla Monitor

Resolve breaches with Mozilla Monitor

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

How do I change my Privacy features?

Encrypted Client Hello (ECH) - Frequently asked questions

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

Thunderbird Mobile Telemetry

HTTPS-First upgrades to secure connections

Block and unblock websites with parental controls on Firefox

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 share Firefox between people on a computer?

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

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?

Safe browsing in Firefox Focus

Tracking Protection in Firefox Preview

"Certificate cannot be trusted" warning in Kazakhstan

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

Is Mozilla VPN free?

Telemetry collection and deletion

My privacy settings were changed from Custom to Standard

Compatibility with Exploit protection on Windows

Telemetry collection - Windows default browser trends

Disable email forwarding - Stop receiving emails sent through your masks

Exclude applications from Mozilla VPN protection

How do I reset Mozilla VPN?

Use Multi-Account Containers with Mozilla VPN

Usage Data Changes for Firefox for iOS and Android

What to do after you have subscribed to Mozilla VPN

What to do after a data breach

Quickly access previously generated masks

Unsafe properties of OpenPGP keys might be ignored

Safari Integration in Firefox Focus for iOS

Mozilla VPN - FAQ

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

OpenPGP keys might be authentic or counterfeit

Recommended Firefox privacy and security settings for families

Disable password saving in Firefox

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 do I report an issue with Firefox Relay?

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

How to automatically label your new email masks

Understand Encrypted Client Hello (ECH)

Relay Phone Masking FAQ

Data Loss Prevention

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

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