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

Insecure connection password warning in Firefox

Avoid and report Mozilla tech support scams

Third-party trackers

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

Protect privacy while using Web Authentication

Private Browsing - Use Firefox without saving history

How do I set up Sync on my computer?

How to manage your camera and microphone permissions with Firefox

HTTPS-Only Mode in Firefox

Introducing Total Cookie Protection in Standard Mode

Delete browsing, search and download history on Firefox

Firefox Password Manager - Alerts for breached websites

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?

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 technical and interaction data collection settings in Firefox

Automatically trust third-party root certificates

How do I choose what information to sync on Firefox?

Manage daily usage ping data collection settings in Firefox

Configure DNS over HTTPS protection levels in Firefox

How to use Firefox containers

HTTPS-First upgrades to secure connections

Search suggestions in Firefox

Firefox connection upgrades - HTTP to HTTPS

Resist Fingerprinting

Mixed content blocking in Firefox

How to stop Firefox from making automatic connections

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

Crash reports in Firefox for Desktop

Manage your logins with the Firefox Password Manager

I found a fake Firefox update

Firefox privacy and security features

Firefox DNS over HTTPS

How Firefox Sync keeps your data safe even if TLS fails

Autofill logins on Firefox

Change your two-step authentication device for your Mozilla account

DNS over HTTPS (DoH) FAQs

Site Information panel

Disable Firefox Sync

SmartBlock for Enhanced Tracking Protection

Certificate contains the same serial number as another certificate

Browsing history in Firefox - View the websites you have visited

Firefox security features warning on Linux

Disable Firefox Sync on a lost phone or tablet

How do I know the status of my sync?

Block and unblock websites with parental controls on Firefox

Remove a synced device from your Mozilla account

How Firefox securely saves passwords

Site Permissions panel

Encrypted Client Hello (ECH) - Frequently asked questions

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

Oblivious HTTP (OHTTP) explained

Total Cookie Protection and website breakage FAQ

Understand Encrypted Client Hello (ECH)

Data Loss Prevention

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

Disable password saving in Firefox

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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