Privacy and security

Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Firefox Terms of Use FAQ

Troubleshoot network errors when TLS key logging is enabled

Private Browsing - Use Firefox without saving history

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Third-party trackers

Use built-in VPN in Firefox

Add Firefox Relay to the Firefox password manager

Does Firefox share my location with websites?

Sponsors on the home page and New Tab page

Enhanced Tracking Protection in Firefox for desktop

Delete browsing, search and download history on Firefox

Control personal device and local network permissions in Firefox

Pop-up blocker settings, exceptions and troubleshooting

Firefox Password Manager - Alerts for breached websites

Configure DNS over HTTPS protection levels in Firefox

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

Use a Primary Password to protect stored logins and passwords

Global Privacy Control

How to manage your camera and microphone permissions with Firefox

How do I set up Sync on my computer?

Manage remote improvements settings in Firefox

Manage technical and interaction data collection settings in Firefox

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Firefox security features warning on Linux

How do I turn on the Do Not Track feature?

HTTPS-Only Mode in Firefox

Secure website certificate

Search suggestions in Firefox

Manage daily usage ping data collection settings in Firefox

Troubleshoot Firefox issues caused by malware

Introducing Total Cookie Protection in Standard Mode

SmartBlock for Enhanced Tracking Protection

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

Protect privacy while using Web Authentication

Firefox connection upgrades - HTTP to HTTPS

Mixed content blocking in Firefox

Manage Enhanced Tracking Protection exceptions

Manage your logins with the Firefox Password Manager

Resist Fingerprinting

I found a fake Firefox update

How to stop Firefox from making automatic connections

Site Information panel

Crash reports in Firefox for Desktop

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

How does built-in Phishing and Malware Protection work?

Use breach alerts in Firefox

Manage marketing data settings in Firefox for Desktop

Firefox DNS over HTTPS

Change your Mozilla account password

How to use Firefox containers

Automatically trust third-party root certificates

Autofill logins on Firefox

Share browser windows or your screen with sites you trust

Disable Firefox Sync

Site Permissions panel

Disable Firefox Sync on a lost phone or tablet

How Firefox securely saves passwords

DNS over HTTPS (DoH) FAQs

HTTPS-First upgrades to secure connections

Block and unblock websites with parental controls on Firefox

Certificate contains the same serial number as another certificate

How do I choose what information to sync on Firefox?

How to stay safe on the web

Remove a synced device from your Mozilla account

Browsing history in Firefox - View the websites you have visited

Firefox privacy and security features

Recommended Firefox privacy and security settings for families

Oblivious HTTP (OHTTP) explained

How do I share Firefox between people on a computer?

Suspicious activity on my Mozilla account

How do I know the status of my sync?

Mozilla service providers and partners

Change your two-step authentication device for your Mozilla account

My privacy settings were changed from Custom to Standard

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

Data Loss Prevention

Unable to find the built-in VPN in Firefox

Create secure passwords to keep your identity safe

Share data with Mozilla to help improve Firefox

About Firefox Desktop Attribution

"Certificate cannot be trusted" warning in Kazakhstan

How Firefox Sync keeps your data safe even if TLS fails

Telemetry collection and deletion

Compatibility with Exploit protection on Windows

Telemetry collection - Windows default browser trends

Total Cookie Protection and website breakage FAQ

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)

Encrypted Client Hello (ECH) - Frequently asked questions

Privacy-Preserving Attribution

How Review Checker preserves user privacy

Understand unexpected script warnings in Firefox

Firefox Homepage Lift Studies

Harmful add-on protection

Statistics for Firefox Homepage Sponsors

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