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

Avoid and report Mozilla tech support scams

Third-party trackers

Insecure connection password warning in Firefox

Does Firefox share my location with websites?

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

Add Firefox Relay to the Firefox password manager

Private Browsing - Use Firefox without saving history

HTTPS-Only Mode in Firefox

Protect privacy while using Web Authentication

Delete browsing, search and download history on Firefox

How to manage your camera and microphone permissions with Firefox

Introducing Total Cookie Protection in Standard Mode

Firefox Password Manager - Alerts for breached websites

How do I set up Sync on my computer?

Use a Primary Password to protect stored logins and passwords

How do I turn on the Do Not Track feature?

Pop-up blocker settings, exceptions and troubleshooting

Global Privacy Control

How does built-in Phishing and Malware Protection work?

Configure DNS over HTTPS protection levels in Firefox

Manage technical and interaction data collection settings in Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Troubleshoot Firefox issues caused by malware

Privacy-Preserving Attribution

Secure website certificate

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

Manage daily usage ping data collection settings in Firefox

Automatically trust third-party root certificates

How do I choose what information to sync on Firefox?

Firefox connection upgrades - HTTP to HTTPS

HTTPS-First upgrades to secure connections

Search suggestions in Firefox

How to use Firefox containers

Resist Fingerprinting

Crash reports in Firefox for Desktop

Mixed content blocking in Firefox

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

Firefox security features warning on Linux

How to stop Firefox from making automatic connections

Site Information panel

Manage your logins with the Firefox Password Manager

Firefox DNS over HTTPS

SmartBlock for Enhanced Tracking Protection

I found a fake Firefox update

Firefox privacy and security features

How Firefox Sync keeps your data safe even if TLS fails

Certificate contains the same serial number as another certificate

Autofill logins on Firefox

Change your two-step authentication device for your Mozilla account

DNS over HTTPS (DoH) FAQs

How Firefox securely saves passwords

Browsing history in Firefox - View the websites you have visited

Disable Firefox Sync

How do I know the status of my sync?

Site Permissions panel

Block and unblock websites with parental controls on Firefox

Disable Firefox Sync on a lost phone or tablet

Remove a synced device from your Mozilla account

Understand Encrypted Client Hello (ECH)

Data Loss Prevention

Oblivious HTTP (OHTTP) explained

Total Cookie Protection and website breakage FAQ

Disable password saving in Firefox

Encrypted Client Hello (ECH) - Frequently asked questions

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

How do I share Firefox between people on a computer?

Change your Mozilla account password

Share browser windows or your screen with sites you trust

Telemetry collection - Windows default browser trends

Recommended Firefox privacy and security settings for families

Manage marketing data settings in Firefox for Desktop

Share data with Mozilla to help improve Firefox

How to stay safe on the web

Suspicious activity on my Mozilla account

About Firefox Desktop Attribution

How do you use Google Firebase in Firefox?

Firefox Subprocessor List

"Certificate cannot be trusted" warning in Kazakhstan

Telemetry collection and deletion

My privacy settings were changed from Custom to Standard

Compatibility with Exploit protection on Windows

Primary Password is replacing Master Password

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

How Review Checker preserves user privacy

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