Privacy and security

Learn how to protect your privacy and secure your data.

In English

Introducing Total Cookie Protection in Standard Mode

Common Myths about Private Browsing

Avoid and report Mozilla tech support scams

Configure DNS over HTTPS protection levels in Firefox

Does Firefox share my location with websites?

Protecting Privacy while using Web Authentication

HTTPS-Only Mode in Firefox

Private Browsing - Use Firefox without saving history

How do I turn on the Do Not Track feature?

Enhanced Tracking Protection in Firefox for desktop

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

How do I set up Sync on my computer?

Delete browsing, search and download history on Firefox

Global Privacy Control

Firefox Password Manager - Alerts for breached websites

Use a Primary Password to protect stored logins and passwords

Third-party trackers

Pop-up blocker settings, exceptions and troubleshooting

Allow or block media autoplay in Firefox

How to manage your camera and microphone permissions with Firefox

How does built-in Phishing and Malware Protection work?

SmartBlock for Enhanced Tracking Protection

How to use Firefox containers

Automatically trust third-party root certificates

Telemetry collection and deletion

Secure website certificate

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

How do I choose what information to sync on Firefox?

Search suggestions in Firefox

Secure your Mozilla account with two-step authentication

Mixed content blocking in Firefox

My sign in was “blocked for security reasons” on Mozilla account

Secure Firefox passwords with device sign-in

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

Site Information panel

About Firefox Desktop Attribution

What if I'm locked out of Two-Step Authentication?

Autofill logins on Firefox

Site Permissions panel

Why do I get a harmful download message when downloading Firefox on Windows?

How to stop Firefox from making automatic connections

How Firefox securely saves passwords

Disable Firefox Sync

How to generate a secure password in Firefox

Share data with Mozilla to help improve Firefox

Browsing history in Firefox - View the websites you have visited

Insecure connection password warning in Firefox

Remove a synced device from your Mozilla account

How do I know the status of my sync?

How Firefox Sync keeps your data safe even if TLS fails

Resist Fingerprinting

Change your Mozilla account password

Using a Primary Password with Sync

Manage your logins with the Firefox Password Manager

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Firefox privacy and security features

Block and unblock websites with parental controls on Firefox

How to stay safe on the web

Total Cookie Protection and website breakage FAQ

Disable password saving in Firefox

Encrypted Client Hello (ECH) - Frequently asked questions

Unlink your Google or Apple ID from your Mozilla account

Disable Firefox Sync on a lost phone or tablet

How do I share Firefox between people on a computer?

Suspicious activity on my Mozilla account

How is Facebook Container different from Multi-account Containers?

"Certificate cannot be trusted" warning in Kazakhstan

Changing your two-step authentication device for your Mozilla account

My privacy settings were changed from Custom to Standard

Primary Password is replacing Master Password

Telemetry collection - Windows default browser trends

Delete sync data from Firefox by signing out of your Mozilla account

Recommended Firefox privacy and security settings for families

Recommended Firefox extensions for families and students

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

Understand Encrypted Client Hello (ECH)

Explore by product

Explore by topic

Browse by product

Browse all forum threads by topic

Get help with

Search Support

In English

Volunteer