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

Pop-up blocker settings, exceptions and troubleshooting

How to manage your camera and microphone permissions with Firefox

Private Browsing - Use Firefox without saving history

How do I set up Sync on my computer?

Delete browsing, search and download history on Firefox

Use a Primary Password to protect stored logins and passwords

Enhanced Tracking Protection in Firefox for desktop

HTTPS-Only Mode in Firefox

Manage remote improvements settings in Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Firefox security features warning on Linux

How do I turn on the Do Not Track feature?

Add Firefox Relay to the Firefox password manager

How does built-in Phishing and Malware Protection work?

Manage technical and interaction data collection settings in Firefox

Secure website certificate

Protect privacy while using Web Authentication

Firefox connection upgrades - HTTP to HTTPS

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

Search suggestions in Firefox

Manage daily usage ping data collection settings in Firefox

How to use Firefox containers

Resist Fingerprinting

SmartBlock for Enhanced Tracking Protection

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

How do I choose what information to sync on Firefox?

Automatically trust third-party root certificates

Troubleshoot Firefox issues caused by malware

Mixed content blocking in Firefox

I found a fake Firefox update

Manage marketing data settings in Firefox for Desktop

Manage Enhanced Tracking Protection exceptions

Firefox DNS over HTTPS

Crash reports in Firefox for Desktop

How Firefox securely saves passwords

Disable Firefox Sync

Site Information panel

Manage your logins with the Firefox Password Manager

Site Permissions panel

How to stop Firefox from making automatic connections

Mozilla service providers and partners

Change your Mozilla account password

Autofill logins on Firefox

Oblivious HTTP (OHTTP) explained

Control personal device and local network permissions in Firefox

Share browser windows or your screen with sites you trust

How do I know the status of my sync?

DNS over HTTPS (DoH) FAQs

Browsing history in Firefox - View the websites you have visited

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

Change your two-step authentication device for your Mozilla account

Total Cookie Protection and website breakage FAQ

Disable password saving in Firefox

Encrypted Client Hello (ECH) - Frequently asked questions

Block and unblock websites with parental controls on Firefox

Certificate contains the same serial number as another certificate

Disable Firefox Sync on a lost phone or tablet

Remove a synced device from your Mozilla account

How Firefox Sync keeps your data safe even if TLS fails

Firefox privacy and security features

Recommended Firefox privacy and security settings for families

Statistics for Firefox Homepage Sponsors

"Certificate cannot be trusted" warning in Kazakhstan

Understand Encrypted Client Hello (ECH)

Data Loss Prevention

Privacy-Preserving Attribution

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

Suspicious activity on my Mozilla account

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

Telemetry collection - Windows default browser trends

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

How Review Checker preserves user privacy

Understand unexpected script warnings in Firefox

Firefox Homepage Lift Studies

Harmful add-on protection

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