Privacy and security

Learn how to protect your privacy and secure your data.

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Firefox Terms of Use FAQ

Common Myths about Private Browsing

Use built-in VPN in Firefox

Insecure connection password warning in Firefox

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

Sponsors on the home page and New Tab page

Firefox Password Manager - Alerts for breached websites

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

Global Privacy Control

Introducing Total Cookie Protection in Standard Mode

How to manage your camera and microphone permissions with Firefox

Pop-up blocker settings, exceptions and troubleshooting

Private Browsing - Use Firefox without saving history

Use a Primary Password to protect stored logins and passwords

Delete browsing, search and download history on Firefox

How do I set up Sync on my computer?

Manage remote improvements settings in Firefox

HTTPS-Only Mode in Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

How do I turn on the Do Not Track feature?

Firefox security features warning on Linux

Enhanced Tracking Protection in Firefox for desktop

How does built-in Phishing and Malware Protection work?

Manage technical and interaction data collection settings in Firefox

Add Firefox Relay to the Firefox password manager

Protect privacy while using Web Authentication

Secure website certificate

Manage daily usage ping data collection settings in Firefox

Firefox connection upgrades - HTTP to HTTPS

Search suggestions in Firefox

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

How to use Firefox containers

Resist Fingerprinting

SmartBlock for Enhanced Tracking Protection

Automatically trust third-party root certificates

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

How do I choose what information to sync on Firefox?

Mixed content blocking in Firefox

I found a fake Firefox update

Troubleshoot Firefox issues caused by malware

Manage marketing data settings in Firefox for Desktop

Firefox DNS over HTTPS

Manage Enhanced Tracking Protection exceptions

Disable Firefox Sync

How Firefox securely saves passwords

Crash reports in Firefox for Desktop

Site Permissions panel

How to stop Firefox from making automatic connections

Site Information panel

Manage your logins with the Firefox Password Manager

Mozilla service providers and partners

Change your Mozilla account password

Share browser windows or your screen with sites you trust

Remove a synced device from your Mozilla account

Autofill logins on Firefox

Oblivious HTTP (OHTTP) explained

How do I know the status of my sync?

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

Change your two-step authentication device for your Mozilla account

Browsing history in Firefox - View the websites you have visited

Total Cookie Protection and website breakage FAQ

Control personal device and local network permissions in Firefox

Block and unblock websites with parental controls on Firefox

Disable Firefox Sync on a lost phone or tablet

How Firefox Sync keeps your data safe even if TLS fails

DNS over HTTPS (DoH) FAQs

Firefox privacy and security features

Recommended Firefox privacy and security settings for families

Disable password saving in Firefox

Understand Encrypted Client Hello (ECH)

Statistics for Firefox Homepage Sponsors

Certificate contains the same serial number as another certificate

Suspicious activity on my Mozilla account

"Certificate cannot be trusted" warning in Kazakhstan

Telemetry collection - Windows default browser trends

Encrypted Client Hello (ECH) - Frequently asked questions

Data Loss Prevention

HTTPS-First upgrades to secure connections

Create secure passwords to keep your identity safe

Share data with Mozilla to help improve Firefox

How do I share Firefox between people on a computer?

How to stay safe on the web

About Firefox Desktop Attribution

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

Privacy-Preserving Attribution

How Review Checker preserves user privacy

Understand unexpected script warnings in Firefox

Firefox Homepage Lift Studies

Harmful add-on protection

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