Privacy and security

Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Use built-in VPN in Firefox

Firefox Terms of Use FAQ

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Third-party trackers

Add Firefox Relay to the Firefox password manager

Configure DNS over HTTPS protection levels in Firefox

Private Browsing - Use Firefox without saving history

Firefox security features warning on Linux

Introducing Total Cookie Protection in Standard Mode

How does built-in Phishing and Malware Protection work?

Enhanced Tracking Protection in Firefox for desktop

How do I turn on the Do Not Track feature?

Sponsors on the home page and New Tab page

Search suggestions in Firefox

Does Firefox share my location with websites?

Protect privacy while using Web Authentication

How to use Firefox containers

Secure website certificate

Firefox connection upgrades - HTTP to HTTPS

Firefox Password Manager - Alerts for breached websites

Troubleshoot Firefox issues caused by malware

Global Privacy Control

SmartBlock for Enhanced Tracking Protection

Manage remote improvements settings in Firefox

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

Pop-up blocker settings, exceptions and troubleshooting

I found a fake Firefox update

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

Mixed content blocking in Firefox

Resist Fingerprinting

Share browser windows or your screen with sites you trust

How to manage your camera and microphone permissions with Firefox

Delete browsing, search and download history on Firefox

How do I set up Sync on my computer?

Use a Primary Password to protect stored logins and passwords

Manage Enhanced Tracking Protection exceptions

Site Information panel

Firefox DNS over HTTPS

How Firefox securely saves passwords

DNS over HTTPS (DoH) FAQs

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

Manage daily usage ping data collection settings in Firefox

Disable Firefox Sync on a lost phone or tablet

Unable to find the built-in VPN in Firefox

Oblivious HTTP (OHTTP) explained

How to stop Firefox from making automatic connections

Change your Mozilla account password

Remove a synced device from your Mozilla account

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Browsing history in Firefox - View the websites you have visited

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

How do I choose what information to sync on Firefox?

Manage your logins with the Firefox Password Manager

Mozilla service providers and partners

HTTPS-Only Mode in Firefox

How do I know the status of my sync?

How Firefox Sync keeps your data safe even if TLS fails

Autofill logins on Firefox

Site Permissions panel

Total Cookie Protection and website breakage FAQ

Understand Encrypted Client Hello (ECH)

Automatically trust third-party root certificates

Manage technical and interaction data collection settings in Firefox

Crash reports in Firefox for Desktop

Control personal device and local network permissions in Firefox

Block and unblock websites with parental controls on Firefox

How do I share Firefox between people on a computer?

How to stay safe on the web

Disable Firefox Sync

Telemetry collection - Windows default browser trends

Firefox privacy and security features

Recommended Firefox privacy and security settings for families

Block deceptive content and dangerous downloads in Firefox

Encrypted Client Hello (ECH) - Frequently asked questions

Manage marketing data settings in Firefox for Desktop

Harmful add-on protection

Certificate contains the same serial number as another certificate

Create secure passwords to keep your identity safe

Share data with Mozilla to help improve Firefox

Suspicious activity on my Mozilla account

About Firefox Desktop Attribution

"Certificate cannot be trusted" warning in Kazakhstan

Change your two-step authentication device for your Mozilla account

Telemetry collection and deletion

My privacy settings were changed from Custom to Standard

Compatibility with Exploit protection on Windows

Disable password saving in Firefox

Disable credit card and payment method syncing across devices

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

Statistics for Firefox Homepage Sponsors

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