Privacy and security

Learn how to protect your privacy and secure your data.

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Troubleshoot network errors when TLS key logging is enabled

Use built-in VPN in Firefox

How Private Windows protect you

Avoid and report Mozilla tech support scams

Firefox Terms of Use FAQ

Third-party trackers

Insecure connection password warning in Firefox

Private Browsing - Use Firefox without saving history

Does Firefox share my location with websites?

Firefox Password Manager - Alerts for breached websites

How do I turn on the Do Not Track feature?

Manage remote improvements settings in Firefox

Use a Primary Password to protect stored logins and passwords

Enhanced Tracking Protection in Firefox for desktop

Control personal device and local network permissions in Firefox

Firefox security features warning on Linux

Add Firefox Relay to the Firefox password manager

How to use Firefox containers

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

How does built-in Phishing and Malware Protection work?

How do I set up Sync on my computer?

Sponsors on the home page and New Tab page

Configure DNS over HTTPS protection levels in Firefox

Introducing Total Cookie Protection in Standard Mode

Global Privacy Control

How to manage your camera and microphone permissions with Firefox

Pop-up blocker settings, exceptions and troubleshooting

Manage technical and interaction data collection settings in Firefox

Troubleshoot Firefox issues caused by malware

Unable to find the built-in VPN in Firefox

HTTPS-Only Mode in Firefox

Delete browsing, search and download history on Firefox

Resist Fingerprinting

Search suggestions in Firefox

Firefox connection upgrades - HTTP to HTTPS

Protect privacy while using Web Authentication

SmartBlock for Enhanced Tracking Protection

Manage daily usage ping data collection settings in Firefox

Share browser windows or your screen with sites you trust

How to stop Firefox from making automatic connections

Total Cookie Protection and website breakage FAQ

Automatically trust third-party root certificates

Mozilla service providers and partners

Crash reports in Firefox for Desktop

Secure website certificate

Remove a synced device from your Mozilla account

Firefox DNS over HTTPS

Autofill logins on Firefox

Site Permissions panel

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

How do I choose what information to sync on Firefox?

Change your Mozilla account password

I found a fake Firefox update

How Firefox securely saves passwords

Disable Firefox Sync

Manage marketing data settings in Firefox for Desktop

Oblivious HTTP (OHTTP) explained

Mixed content blocking in Firefox

Manage your logins with the Firefox Password Manager

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

Firefox privacy and security features

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

Disable Firefox Sync on a lost phone or tablet

How do I know the status of my sync?

Disable password saving in Firefox

Use breach alerts in Firefox

Block and unblock websites with parental controls on Firefox

Certificate contains the same serial number as another certificate

How Firefox Sync keeps your data safe even if TLS fails

Change your two-step authentication device for your Mozilla account

DNS over HTTPS (DoH) FAQs

Browsing history in Firefox - View the websites you have visited

Recommended Firefox privacy and security settings for families

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

Encrypted Client Hello (ECH) - Frequently asked questions

Manage Enhanced Tracking Protection exceptions

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

Site Information panel

Suspicious activity on my Mozilla account

About Firefox Desktop Attribution

"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

Understand Encrypted Client Hello (ECH)

Data Loss Prevention

Privacy-Preserving Attribution

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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