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

Enhanced Tracking Protection in Firefox for desktop

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Third-party trackers

Add Firefox Relay to the Firefox password manager

Firefox Password Manager - Alerts for breached websites

Does Firefox share my location with websites?

Configure DNS over HTTPS protection levels in Firefox

Private Browsing - Use Firefox without saving history

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

HTTPS-Only Mode in Firefox

Introducing Total Cookie Protection in Standard Mode

Delete browsing, search and download history on Firefox

Firefox security features warning on Linux

Use a Primary Password to protect stored logins and passwords

Pop-up blocker settings, exceptions and troubleshooting

Global Privacy Control

How to manage your camera and microphone permissions with Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

How does built-in Phishing and Malware Protection work?

Secure website certificate

Manage technical and interaction data collection settings in Firefox

Search suggestions in Firefox

How do I turn on the Do Not Track feature?

Manage daily usage ping data collection settings in Firefox

Firefox connection upgrades - HTTP to HTTPS

How do I set up Sync on my computer?

Protect privacy while using Web Authentication

Automatically trust third-party root certificates

Troubleshoot Firefox issues caused by malware

How do I choose what information to sync on Firefox?

Control personal device and local network permissions in Firefox

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

Crash reports in Firefox for Desktop

SmartBlock for Enhanced Tracking Protection

Manage Enhanced Tracking Protection exceptions

I found a fake Firefox update

How to use Firefox containers

Sponsors on the home page and New Tab page

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

Mixed content blocking in Firefox

Site Information panel

Firefox DNS over HTTPS

Share browser windows or your screen with sites you trust

How Firefox securely saves passwords

How to stop Firefox from making automatic connections

Manage your logins with the Firefox Password Manager

Site Permissions panel

Resist Fingerprinting

Manage marketing data settings in Firefox for Desktop

Remove a synced device from your Mozilla account

How do I know the status of my sync?

Disable Firefox Sync on a lost phone or tablet

Mozilla service providers and partners

Autofill logins on Firefox

Disable Firefox Sync

Oblivious HTTP (OHTTP) explained

How do I share Firefox between people on a computer?

How Firefox Sync keeps your data safe even if TLS fails

DNS over HTTPS (DoH) FAQs

Browsing history in Firefox - View the websites you have visited

Encrypted Client Hello (ECH) - Frequently asked questions

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

Block and unblock websites with parental controls on Firefox

Certificate contains the same serial number as another certificate

How to stay safe on the web

Change your two-step authentication device for your Mozilla account

Total Cookie Protection and website breakage FAQ

Firefox privacy and security features

Disable password saving in Firefox

Understand Encrypted Client Hello (ECH)

HTTPS-First upgrades to secure connections

Primary Password is replacing Master Password

Recommended Firefox privacy and security settings for families

Manage remote improvements settings in Firefox

Create secure passwords to keep your identity safe

Share data with Mozilla to help improve Firefox

Change your Mozilla account password

Suspicious activity on my Mozilla account

About Firefox Desktop Attribution

How do you use Google Firebase in Firefox?

"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

Telemetry collection - Windows default browser trends

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

Data Loss Prevention

Privacy-Preserving Attribution

How Review Checker preserves user privacy

Understand unexpected script warnings in Firefox

Firefox Homepage Lift Studies

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