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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

Introducing Total Cookie Protection in Standard Mode

Avoid and report Mozilla tech support scams

Third-party trackers

Configure DNS over HTTPS protection levels in Firefox

Does Firefox share my location with websites?

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

How do I turn on the Do Not Track feature?

HTTPS-Only Mode in Firefox

How do I set up Sync on my computer?

Use a Primary Password to protect stored logins and passwords

Private Browsing - Use Firefox without saving history

Delete browsing, search and download history on Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Telemetry collection and deletion

Global Privacy Control

How to manage your camera and microphone permissions with Firefox

How does built-in Phishing and Malware Protection work?

Pop-up blocker settings, exceptions and troubleshooting

Allow or block media autoplay in Firefox

Automatically trust third-party root certificates

How do I choose what information to sync on Firefox?

Secure your Mozilla account with two-step authentication

Firefox Password Manager - Alerts for breached websites

SmartBlock for Enhanced Tracking Protection

Secure website certificate

How to use Firefox containers

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

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

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

Mixed content blocking in Firefox

Firefox privacy and security features

How to generate a secure password in Firefox

Search suggestions in Firefox

About Firefox Desktop Attribution

Share data with Mozilla to help improve Firefox

How Firefox securely saves passwords

Site Permissions panel

Site Information panel

Protect privacy while using Web Authentication

Manage your logins with the Firefox Password Manager

Secure Firefox passwords with device sign-in

Total Cookie Protection and website breakage FAQ

Block and unblock websites with parental controls on Firefox

How Firefox Sync keeps your data safe even if TLS fails

Disable Firefox Sync

Encrypted Client Hello (ECH) - Frequently asked questions

How to stay safe on the web

Remove a synced device from your Mozilla account

How do I know the status of my sync?

Autofill logins on Firefox

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

Recommended Firefox privacy and security settings for families

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

How to stop Firefox from making automatic connections

How do I share Firefox between people on a computer?

Using a Primary Password with Sync

How is Facebook Container different from Multi-account Containers?

Changing your two-step authentication device for your Mozilla account

Browsing history in Firefox - View the websites you have visited

Primary Password is replacing Master Password

Disable password saving in Firefox

Disable Firefox Sync on a lost phone or tablet

Insecure connection password warning in Firefox

Change your Mozilla account password

Suspicious activity on my Mozilla account

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

"Certificate cannot be trusted" warning in Kazakhstan

My privacy settings were changed from Custom to Standard

Telemetry collection - Windows default browser trends

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)

Unlink your Google or Apple ID from your Mozilla account

Resist Fingerprinting

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