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Privacy and security

Learn how to protect your privacy and secure your data.

In English

Common Myths about Private Browsing

Avoid and report Mozilla tech support scams

Third-party trackers

Does Firefox share my location with websites?

Configure DNS over HTTPS protection levels in Firefox

Add Firefox Relay to the Firefox password manager

Manage technical and interaction data collection settings in Firefox

HTTPS-Only Mode in Firefox

Protect privacy while using Web Authentication

Enhanced Tracking Protection in Firefox for desktop

Private Browsing - Use Firefox without saving history

How do I set up Sync on my computer?

Use a Primary Password to protect stored logins and passwords

Introducing Total Cookie Protection in Standard Mode

Firefox Password Manager - Alerts for breached websites

Delete browsing, search and download history on Firefox

Pop-up blocker settings, exceptions and troubleshooting

Firefox security features warning on Linux

How to manage your camera and microphone permissions with Firefox

Global Privacy Control

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

How do I turn on the Do Not Track feature?

How does built-in Phishing and Malware Protection work?

Insecure connection password warning in Firefox

Secure website certificate

Troubleshoot Firefox issues caused by malware

Firefox connection upgrades - HTTP to HTTPS

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Privacy-Preserving Attribution

Manage daily usage ping data collection settings in Firefox

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

Automatically trust third-party root certificates

SmartBlock for Enhanced Tracking Protection

Crash reports in Firefox for Desktop

Mixed content blocking in Firefox

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

Resist Fingerprinting

Site Information panel

Search suggestions in Firefox

How to use Firefox containers

DNS over HTTPS (DoH) FAQs

How to stop Firefox from making automatic connections

I found a fake Firefox update

Manage your logins with the Firefox Password Manager

Autofill logins on Firefox

Site Permissions panel

Certificate contains the same serial number as another certificate

Share browser windows or your screen with sites you trust

Firefox DNS over HTTPS

How do I choose what information to sync on Firefox?

Suspicious activity on my Mozilla account

How Firefox securely saves passwords

Browsing history in Firefox - View the websites you have visited

Firefox privacy and security features

Encrypted Client Hello (ECH) - Frequently asked questions

Telemetry collection - Windows default browser trends

How Firefox Sync keeps your data safe even if TLS fails

Recommended Firefox privacy and security settings for families

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

Oblivious HTTP (OHTTP) explained

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

How do I know the status of my sync?

Change your two-step authentication device for your Mozilla account

Total Cookie Protection and website breakage FAQ

Disable password saving in Firefox

How do I share Firefox between people on a computer?

How to stay safe on the web

Change your Mozilla account password

How do you use Google Firebase in Firefox?

Primary Password is replacing Master Password

Manage marketing data settings in Firefox for Desktop

HTTPS-First upgrades to secure connections

My privacy settings were changed from Custom to Standard

Block deceptive content and dangerous downloads in Firefox

Share data with Mozilla to help improve Firefox

About Firefox Desktop Attribution

Firefox service providers and partners

"Certificate cannot be trusted" warning in Kazakhstan

Disable Firefox Sync

Telemetry collection and deletion

Compatibility with Exploit protection on Windows

Disable credit card and payment method syncing across devices

Understand Encrypted Client Hello (ECH)

Data Loss Prevention

How Review Checker preserves user privacy

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