Privacy and security

Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Third-party trackers

Configure DNS over HTTPS protection levels in Firefox

Does Firefox share my location with websites?

Sponsors on the home page and New Tab page

Enhanced Tracking Protection in Firefox for desktop

Firefox Password Manager - Alerts for breached websites

Global Privacy Control

How do I set up Sync on my computer?

Pop-up blocker settings, exceptions and troubleshooting

Private Browsing - Use Firefox without saving history

How to manage your camera and microphone permissions with Firefox

Introducing Total Cookie Protection in Standard Mode

Add Firefox Relay to the Firefox password manager

Delete browsing, search and download history on Firefox

Use a Primary Password to protect stored logins and passwords

HTTPS-Only Mode in Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Firefox security features warning on Linux

Manage remote improvements settings in Firefox

How do I turn on the Do Not Track feature?

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

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

Search suggestions in Firefox

Firefox connection upgrades - HTTP to HTTPS

Manage daily usage ping data collection settings in Firefox

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

Resist Fingerprinting

How to use Firefox containers

SmartBlock for Enhanced Tracking Protection

Troubleshoot Firefox issues caused by malware

How do I choose what information to sync on Firefox?

I found a fake Firefox update

Mixed content blocking in Firefox

Automatically trust third-party root certificates

Manage marketing data settings in Firefox for Desktop

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

Firefox DNS over HTTPS

How Firefox securely saves passwords

Crash reports in Firefox for Desktop

Control personal device and local network permissions in Firefox

Share browser windows or your screen with sites you trust

Disable Firefox Sync

Oblivious HTTP (OHTTP) explained

Manage Enhanced Tracking Protection exceptions

How to stop Firefox from making automatic connections

Change your Mozilla account password

Manage your logins with the Firefox Password Manager

Mozilla service providers and partners

Autofill logins on Firefox

Browsing history in Firefox - View the websites you have visited

DNS over HTTPS (DoH) FAQs

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

Remove a synced device from your Mozilla account

How do I know the status of my sync?

Total Cookie Protection and website breakage FAQ

Recommended Firefox privacy and security settings for families

Disable password saving in Firefox

Certificate contains the same serial number as another certificate

Disable Firefox Sync on a lost phone or tablet

Change your two-step authentication device for your Mozilla account

Firefox privacy and security features

Encrypted Client Hello (ECH) - Frequently asked questions

Block and unblock websites with parental controls on Firefox

Site Information panel

"Certificate cannot be trusted" warning in Kazakhstan

Data Loss Prevention

Privacy-Preserving Attribution

HTTPS-First upgrades to secure connections

Statistics for Firefox Homepage Sponsors

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

How Firefox Sync keeps your data safe even if TLS fails

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

Site Permissions panel

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

Understand Encrypted Client Hello (ECH)

How Review Checker preserves user privacy

Firefox Terms of Use FAQ

Use built-in VPN in Firefox

Understand unexpected script warnings in Firefox

Firefox Homepage Lift Studies

Harmful add-on protection

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