Privacy and security

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

Private Browsing on Firefox for Android

Configure DNS over HTTPS protection levels in Firefox

Does Firefox share my location with websites?

Avoid and report Mozilla tech support scams

Choose a strong password

Insecure connection password warning in Firefox

Private Browsing in Firefox for iOS

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

Global Privacy Control

Protect privacy while using Web Authentication

How do I set up Sync on my computer?

Use a Primary Password to protect stored logins and passwords

HTTPS-Only Mode in Firefox

Private Browsing - Use Firefox without saving history

How do I turn on the Do Not Track feature?

Introducing Total Cookie Protection in Standard Mode

Firefox Password Manager - Alerts for breached websites

Delete browsing, search and download history on Firefox

How to manage your camera and microphone permissions with Firefox

Pop-up blocker settings, exceptions and troubleshooting

Enhanced Tracking Protection in Firefox for Android

Remote Content in Messages

Pocket website cookies FAQ

How does built-in Phishing and Malware Protection work?

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

HTTPS-Only Mode in Firefox for Android

Privacy-Preserving Attribution

Mozilla Monitor - Frequently asked questions

Troubleshoot Firefox issues caused by malware

Automatically trust third-party root certificates

SmartBlock for Enhanced Tracking Protection

How to set up Firefox Sync in Firefox for Android

Telemetry collection and deletion

Password Manager - Remember, delete and change passwords in Thunderbird

How do I choose what information to sync on Firefox?

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

Mixed content blocking in Firefox

Microsoft OAuth Authentication and Thunderbird in 2024

How to use Firefox containers

Site Information panel

I found a fake Firefox update

Enhanced Tracking Protection in Firefox for iOS

DNS over HTTPS (DoH) FAQs

Secure Firefox passwords with device sign-in

Introduction to End-to-end encryption in Thunderbird

Resist Fingerprinting

Clear browsing history in Firefox for iOS

Firefox DNS over HTTPS

How to stop Firefox from making automatic connections

Secure website certificate

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

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

Share browser windows or your screen with sites you trust

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

Certificate contains the same serial number as another certificate

Browsing history in Firefox - View the websites you have visited

How Firefox securely saves passwords

Total Cookie Protection and website breakage FAQ

Firefox privacy and security features

Sync bookmarks, logins and browsing history on Firefox for iOS

Change your Mozilla account password

Autofill logins on Firefox

Disable Firefox Sync

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

Thunderbird Telemetry

Site Permissions panel

OpenPGP Recipient Alias Configuration

Firefox connection upgrades - HTTP to HTTPS

Protect your Thunderbird passwords with a Primary Password

Clear your browsing history in Firefox for Android

OpenPGP in Thunderbird - HOWTO and FAQ

Set up a passcode and Face ID in Firefox for iOS

Remove a synced device from your Mozilla account

Manage your logins with the Firefox Password Manager

Firefox Subprocessor List

How Firefox Sync keeps your data safe even if TLS fails

Create an email mask through Firefox Relay

Disable password saving in Firefox

Understand Encrypted Client Hello (ECH)

HTTPS-First upgrades to secure connections

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

How to stay safe on the web

Search suggestions in Firefox

How do I know the status of my sync?

Telemetry collection - Windows default browser trends

Grant camera access to Firefox for Android

Use Web Apps with Firefox for Android

Recommended Firefox privacy and security settings for families

How do I monitor multiple email addresses?

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

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

Getting started with Thunderbird for Android

OpenPGP in Thunderbird for Android - How To

Disable Firefox Sync on a lost phone or tablet

Share data with Mozilla to help improve Firefox

How do I share Firefox between people on a computer?

Customize Firefox Home on iOS

Send usage data on Firefox mobile browsers

Suspicious activity on my Mozilla account

About Firefox Desktop Attribution

How do you use Google Firebase in Firefox?

Activate Firefox Relay - Mask your email address

Usage Data Changes for Firefox for iOS and Android

What to do after a data breach

OpenPGP keys might be authentic or counterfeit

Resolve breaches with Mozilla Monitor

Encrypted Client Hello (ECH) - Frequently asked questions

Data broker scan

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

Monthly Monitor Report Email

Generate strong passwords in Firefox for Android

Thunderbird Android Telemetry

Block and unblock websites with parental controls on 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

Keep Private Browsing tabs open after exiting Firefox

Firefox Monitor

How do you use Adjust in Firefox?

Tracking Protection in Firefox Preview

"Certificate cannot be trusted" warning in Kazakhstan

Change your two-step authentication device for your Mozilla account

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

How do I reset Mozilla VPN?

Install the Firefox Relay extension on Firefox for desktop

Unsafe properties of OpenPGP keys might be ignored

Search your browsing history in Firefox for iOS

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

How does Firefox for iOS use the permissions it requests?

Pocket for iOS App privacy information

What permissions does Pocket for Android require and why?

Global Privacy Control in Firefox for Android

How Review Checker preserves user privacy

Securing a New Partner for Monitor Plus

Placeholder Bug 1947157

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