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Learn how to protect your privacy and secure your data.

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Firefox Terms of Use FAQ

Common Myths about Private Browsing

Avoid and report Mozilla tech support scams

Third-party trackers

Use built-in VPN in Firefox

Sponsors on the home page and New Tab page

Add Firefox Relay to the Firefox password manager

Configure DNS over HTTPS protection levels in Firefox

Introducing Total Cookie Protection in Standard Mode

Manage remote improvements settings in Firefox

How do I set up Sync on my computer?

Private Browsing - Use Firefox without saving history

How to manage your camera and microphone permissions with Firefox

Firefox security features warning on Linux

Use a Primary Password to protect stored logins and passwords

How does built-in Phishing and Malware Protection work?

How do I turn on the Do Not Track feature?

Protect privacy while using Web Authentication

Insecure connection password warning in Firefox

Global Privacy Control

Automatically trust third-party root certificates

Firefox connection upgrades - HTTP to HTTPS

Search suggestions in Firefox

SmartBlock for Enhanced Tracking Protection

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

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

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

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

I found a fake Firefox update

Resist Fingerprinting

Manage Enhanced Tracking Protection exceptions

HTTPS-Only Mode in Firefox

Crash reports in Firefox for Desktop

Pop-up blocker settings, exceptions and troubleshooting

Secure website certificate

Share browser windows or your screen with sites you trust

Enhanced Tracking Protection in Firefox for desktop

Firefox DNS over HTTPS

Manage daily usage ping data collection settings in Firefox

Mozilla service providers and partners

How to stop Firefox from making automatic connections

How Firefox securely saves passwords

How to use Firefox containers

Certificate contains the same serial number as another certificate

Does Firefox share my location with websites?

Remove a synced device from your Mozilla account

Manage your logins with the Firefox Password Manager

Manage marketing data settings in Firefox for Desktop

Oblivious HTTP (OHTTP) explained

Understand Encrypted Client Hello (ECH)

Delete browsing, search and download history on Firefox

Change your Mozilla account password

Disable Firefox Sync

Firefox privacy and security features

Recommended Firefox privacy and security settings for families

Encrypted Client Hello (ECH) - Frequently asked questions

Manage technical and interaction data collection settings in Firefox

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

Disable Firefox Sync on a lost phone or tablet

How do I share Firefox between people on a computer?

How to stay safe on the web

Mixed content blocking in Firefox

How do I know the status of my sync?

Autofill logins on Firefox

Change your two-step authentication device for your Mozilla account

DNS over HTTPS (DoH) FAQs

Primary Password is replacing Master Password

Telemetry collection - Windows default browser trends

Site Permissions panel

Total Cookie Protection and website breakage FAQ

Block and unblock websites with parental controls on Firefox

Site Information panel

How Firefox Sync keeps your data safe even if TLS fails

Firefox Password Manager - Alerts for breached websites

Browsing history in Firefox - View the websites you have visited

Disable password saving in Firefox

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

Data Loss Prevention

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

Telemetry collection and deletion

My privacy settings were changed from Custom to Standard

Compatibility with Exploit protection on Windows

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

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

Harmful add-on protection

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