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

Firefox Terms of Use FAQ

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Third-party trackers

Does Firefox share my location with websites?

Add Firefox Relay to the Firefox password manager

Pop-up blocker settings, exceptions and troubleshooting

Configure DNS over HTTPS protection levels in Firefox

Control personal device and local network permissions in Firefox

Delete browsing, search and download history on Firefox

How Private Windows protect you

Global Privacy Control

How to use Firefox containers

Enhanced Tracking Protection in Firefox for desktop

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

How do I turn on the Do Not Track feature?

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

How to manage your camera and microphone permissions with Firefox

Manage remote improvements settings in Firefox

Manage technical and interaction data collection settings in Firefox

Use built-in VPN in Firefox

HTTPS-Only Mode in Firefox

Firefox security features warning on Linux

Secure website certificate

How does built-in Phishing and Malware Protection work?

Manage daily usage ping data collection settings in Firefox

Introducing Total Cookie Protection in Standard Mode

Troubleshoot Firefox issues caused by malware

How do I set up Sync on my computer?

I found a fake Firefox update

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

SmartBlock for Enhanced Tracking Protection

Firefox connection upgrades - HTTP to HTTPS

Mixed content blocking in Firefox

Firefox DNS over HTTPS

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

Sponsors on the home page and New Tab page

Manage marketing data settings in Firefox for Desktop

Use breach alerts in Firefox

Site Information panel

Share browser windows or your screen with sites you trust

Protect privacy while using Web Authentication

Firefox Password Manager - Alerts for breached websites

Manage Enhanced Tracking Protection exceptions

How to stop Firefox from making automatic connections

How do I choose what information to sync on Firefox?

Remove a synced device from your Mozilla account

Automatically trust third-party root certificates

Resist Fingerprinting

Crash reports in Firefox for Desktop

Site Permissions panel

Unable to find the built-in VPN in Firefox

Change your Mozilla account password

Manage your logins with the Firefox Password Manager

Disable Firefox Sync

Disable Firefox Sync on a lost phone or tablet

Oblivious HTTP (OHTTP) explained

Mozilla service providers and partners

Block and unblock websites with parental controls on Firefox

Certificate contains the same serial number as another certificate

Search suggestions in Firefox

How do I know the status of my sync?

Use a Primary Password to protect stored logins and passwords

Private Browsing - Use Firefox without saving history

How to stay safe on the web

Suspicious activity on my Mozilla account

How Firefox securely saves passwords

Change your two-step authentication device for your Mozilla account

DNS over HTTPS (DoH) FAQs

Total Cookie Protection and website breakage FAQ

Firefox privacy and security features

Recommended Firefox privacy and security settings for families

Encrypted Client Hello (ECH) - Frequently asked questions

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

Data Loss Prevention

HTTPS-First upgrades to secure connections

Harmful add-on protection

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?

About Firefox Desktop Attribution

"Certificate cannot be trusted" warning in Kazakhstan

How Firefox Sync keeps your data safe even if TLS fails

Autofill logins on Firefox

Browsing history in Firefox - View the websites you have visited

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 password saving in Firefox

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

Understand Encrypted Client Hello (ECH)

Privacy-Preserving Attribution

Understand unexpected script warnings in Firefox

Firefox Homepage Lift Studies

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