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Learn how to protect your privacy and secure your data.

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Use built-in VPN in Firefox

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

Private Browsing on Firefox for Android

Third-party trackers

Does Firefox share my location with websites?

Enhanced Tracking Protection in Firefox for Android

Add Firefox Relay to the Firefox password manager

Configure DNS over HTTPS protection levels in Firefox

Pop-up blocker settings, exceptions and troubleshooting

How to set up Firefox Sync in Firefox for Android

Delete browsing, search and download history on Firefox

Use a Primary Password to protect stored logins and passwords

How to manage your camera and microphone permissions with Firefox

How do I set up Sync on my computer?

Firefox security features warning on Linux

Choose a strong password

HTTPS-Only Mode in Firefox

Manage technical and interaction data collection settings in Firefox

How does built-in Phishing and Malware Protection work?

Introducing Total Cookie Protection in Standard Mode

Mobile - Manage Firefox data collection and privacy settings

Remote Content in Messages

How do I turn on the Do Not Track feature?

About private browsing in Firefox for iOS

HTTPS-Only Mode in Firefox for Android

Private Browsing - Use Firefox without saving history

Search suggestions in Firefox

Secure website certificate

Protect privacy while using Web Authentication

Manage daily usage ping data collection settings in Firefox

Automatically trust third-party root certificates

How to use Firefox containers

Firefox connection upgrades - HTTP to HTTPS

Troubleshoot Firefox issues caused by malware

Manage marketing data settings in Firefox for Desktop

Manage marketing data settings in Firefox for Android

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

Sponsors on the home page and New Tab page

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

Resist Fingerprinting

Configure DNS over HTTPS protection levels in Firefox for Android

I found a fake Firefox update

Password Manager - Remember, delete and change passwords in Thunderbird

SmartBlock for Enhanced Tracking Protection

Is Mozilla VPN free?

Mozilla Monitor - Frequently asked questions

Mixed content blocking in Firefox

Share browser windows or your screen with sites you trust

Control personal device and local network permissions in Firefox

Firefox Password Manager - Alerts for breached websites

Introduction to End-to-end encryption in Thunderbird

How do I choose what information to sync on Firefox?

Manage remote improvements settings in Firefox

How Firefox securely saves passwords

DNS over HTTPS (DoH) FAQs

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

Firefox DNS over HTTPS

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

Manage Enhanced Tracking Protection exceptions

Activate Firefox Relay - Mask your email address

Global Privacy Control

How to stop Firefox from making automatic connections

Site Information panel

Enhanced Tracking Protection in Firefox for iOS

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Automatically fill in credit and debit card payment methods data on web forms

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

Clear your browsing history in Firefox for Android

Clear browsing history in Firefox for iOS

Change your Mozilla account password

Remove a synced device from your Mozilla account

Add trusted websites to your allow list in Firefox Focus

Mozilla service providers and partners

Browsing history in Firefox - View the websites you have visited

Mozilla VPN - FAQ

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

Oblivious HTTP (OHTTP) explained

Disable Firefox Sync on a lost phone or tablet

Protect your Thunderbird passwords with a Primary Password

Manage your logins with the Firefox Password Manager

OpenPGP in Thunderbird - HOWTO and FAQ

How do I report an issue with Firefox Relay?

Protect your container tabs with Mozilla VPN

Disable Firefox Sync

Safari Integration in Firefox Focus for iOS

Microsoft OAuth Authentication and Thunderbird in 2024

How do I change my DNS settings?

How to automatically label your new email masks

Encrypted Client Hello (ECH) - Frequently asked questions

How does Firefox for Android use the permissions it requests?

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?

Firefox Relay - Email and Phone masks

Total Cookie Protection and website breakage FAQ

Recommended Firefox privacy and security settings for families

How do I change my Privacy features?

Understand Encrypted Client Hello (ECH)

Global Privacy Control 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

Reset your Mozilla account password to protect your credentials

Control personal device and local network permissions on Firefox for Android

Block and unblock websites with parental controls on Firefox

Certificate contains the same serial number as another certificate

How do I share Firefox between people on a computer?

How to stay safe on the web

Set up a passcode and Face ID in Firefox for iOS

Tracking Protection on Firefox Focus for iOS

How Firefox Sync keeps your data safe even if TLS fails

Turn on Mozilla VPN on your Android device

Telemetry collection - Windows default browser trends

Create an email mask through Firefox Relay

Grant camera access to Firefox for Android

Use Web Apps with Firefox for Android

Site Permissions panel

OpenPGP Recipient Alias Configuration

What to do after you have subscribed to Mozilla VPN

Install the Firefox Relay extension on Firefox for desktop

What to do after a data breach

HTTPS-Only Mode in Firefox Focus for Android

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

Firefox privacy and security features

Mask your phone number with Relay Phone Masking

How does Firefox for iOS use the permissions it requests?

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

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

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

Privacy-Preserving Attribution

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

Thunderbird Mobile Telemetry

Hide your email using Firefox Relay on Android when signing up on websites

Harmful add-on protection

Create secure passwords to keep your identity safe

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?

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

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

Block cookies in Firefox Focus for Android

How do you use Adjust in Firefox?

Safe browsing in Firefox Focus

Tracking Protection in Firefox Preview

"Certificate cannot be trusted" warning in Kazakhstan

Autofill logins on Firefox

Change your two-step authentication device for your Mozilla account

Telemetry collection and deletion

My privacy settings were changed from Custom to Standard

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

Compatibility with Exploit protection on Windows

Thunderbird Telemetry

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?

Use Multi-Account Containers with Mozilla VPN

Use labels to keep your masks organized in Firefox Relay

Usage Data Changes for Firefox for iOS and 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

Prerequisite for sending an encrypted email message

Thunderbird and OpenPGP Alias Keys

OpenPGP keys might be authentic or counterfeit

Disable password saving in Firefox

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?

Resolve breaches with Mozilla Monitor

How do I monitor multiple email addresses?

Relay Phone Masking FAQ

Data Loss Prevention

Generate strong passwords in Firefox for Android

How Review Checker preserves user privacy

OpenPGP in Thunderbird for Android - How To

Crash reports in Firefox for Desktop

HTTPS-First upgrades to secure connections

Manage daily usage ping data collection settings in Firefox Focus

Firefox for Android’s protection against fingerprinters

Lock your private tabs on Firefox for Android

Understand unexpected script warnings in Firefox

Fix phone masking issues and protect voicemail privacy in Relay

Firefox Homepage Lift Studies

Statistics for Firefox Homepage Sponsors

Unable to find the built-in VPN in Firefox

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