Privacy and security

Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Firefox Terms of Use FAQ

Use built-in VPN in Firefox

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Third-party trackers

Enhanced Tracking Protection in Firefox for desktop

Does Firefox share my location with websites?

Add Firefox Relay to the Firefox password manager

Sponsors on the home page and New Tab page

How to use Firefox containers

Private Browsing - Use Firefox without saving history

Firefox Password Manager - Alerts for breached websites

Pop-up blocker settings, exceptions and troubleshooting

Automatically fill in credit and debit card payment methods data on web forms

Configure DNS over HTTPS protection levels in Firefox

How do I set up Sync on my computer?

How to manage your camera and microphone permissions with Firefox

Use a Primary Password to protect stored logins and passwords

Delete browsing, search and download history on Firefox

Control personal device and local network permissions in Firefox

Firefox security features warning on Linux

How does built-in Phishing and Malware Protection work?

Manage remote improvements settings in Firefox

Troubleshoot Firefox issues caused by malware

Search suggestions in Firefox

Manage daily usage ping data collection settings in Firefox

Global Privacy Control

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Introducing Total Cookie Protection in Standard Mode

Secure website certificate

How do I turn on the Do Not Track feature?

Protect privacy while using Web Authentication

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

SmartBlock for Enhanced Tracking Protection

Firefox connection upgrades - HTTP to HTTPS

Unable to find the built-in VPN in Firefox

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

Automatically trust third-party root certificates

Manage Enhanced Tracking Protection exceptions

I found a fake Firefox update

Mixed content blocking in Firefox

Manage technical and interaction data collection settings in Firefox

Resist Fingerprinting

Manage your logins with the Firefox Password Manager

Manage marketing data settings in Firefox for Desktop

Firefox DNS over HTTPS

Disable Firefox Sync

Crash reports in Firefox for Desktop

Share browser windows or your screen with sites you trust

Mozilla service providers and partners

Autofill logins on Firefox

Use breach alerts in Firefox

Recommended Firefox privacy and security settings for families

How Firefox securely saves passwords

DNS over HTTPS (DoH) FAQs

Block and unblock websites with parental controls on Firefox

How do I choose what information to sync on Firefox?

Remove a synced device from your Mozilla account

Browsing history in Firefox - View the websites you have visited

Site Permissions panel

Oblivious HTTP (OHTTP) explained

Troubleshoot network errors when TLS key logging is enabled

How do I share Firefox between people on a computer?

Site Information panel

Change your Mozilla account password

Change your two-step authentication device for your Mozilla account

Understand Encrypted Client Hello (ECH)

How to stop Firefox from making automatic connections

Certificate contains the same serial number as another certificate

How Firefox Sync keeps your data safe even if TLS fails

Total Cookie Protection and website breakage FAQ

Firefox privacy and security features

Disable password saving in Firefox

Block deceptive content and dangerous downloads in Firefox

Create secure passwords to keep your identity safe

Disable Firefox Sync on a lost phone or tablet

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 I know the status of my sync?

"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

HTTPS-Only Mode in Firefox

Telemetry collection - Windows default browser trends

Disable credit card and payment method syncing across devices

Encrypted Client Hello (ECH) - Frequently asked questions

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

Data Loss Prevention

Privacy-Preserving Attribution

How Review Checker preserves user privacy

HTTPS-First upgrades to secure connections

Understand unexpected script warnings in Firefox

Firefox Homepage Lift Studies

Harmful add-on protection

Statistics for Firefox Homepage Sponsors

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