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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

Use built-in VPN in Firefox

Third-party trackers

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

Manage remote improvements settings in Firefox

How do I set up Sync on my computer?

Private Browsing - Use Firefox without saving history

Introducing Total Cookie Protection in Standard Mode

Delete browsing, search and download history on Firefox

How to manage your camera and microphone permissions with Firefox

Firefox security features warning on Linux

Manage technical and interaction data collection settings in Firefox

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

Firefox connection upgrades - HTTP to HTTPS

Automatically trust third-party root certificates

SmartBlock for Enhanced Tracking Protection

Does Firefox share my location with websites?

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

Global Privacy Control

Troubleshoot Firefox issues caused by malware

Search suggestions in Firefox

Manage Enhanced Tracking Protection exceptions

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Resist Fingerprinting

How do I choose what information to sync on Firefox?

I found a fake Firefox update

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

Control personal device and local network permissions in Firefox

Share browser windows or your screen with sites you trust

Crash reports in Firefox for Desktop

Firefox Password Manager - Alerts for breached websites

Firefox DNS over HTTPS

Enhanced Tracking Protection in Firefox for desktop

How Firefox securely saves passwords

Mozilla service providers and partners

How to stop Firefox from making automatic connections

How to use Firefox containers

Manage your logins with the Firefox Password Manager

Disable Firefox Sync

Certificate contains the same serial number as another certificate

Remove a synced device from your Mozilla account

Understand Encrypted Client Hello (ECH)

Encrypted Client Hello (ECH) - Frequently asked questions

Manage daily usage ping data collection settings in Firefox

Manage marketing data settings in Firefox for Desktop

Oblivious HTTP (OHTTP) explained

Disable Firefox Sync on a lost phone or tablet

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

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

How do I share Firefox between people on a computer?

How to stay safe on the web

Change your Mozilla account password

How do I know the status of my sync?

Autofill logins on Firefox

HTTPS-Only Mode in Firefox

Primary Password is replacing Master Password

Privacy-Preserving Attribution

Block and unblock websites with parental controls on Firefox

Pop-up blocker settings, exceptions and troubleshooting

Secure website certificate

Insecure connection password warning in Firefox

How Firefox Sync keeps your data safe even if TLS fails

Browsing history in Firefox - View the websites you have visited

Telemetry collection - Windows default browser trends

Disable password saving in Firefox

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

Create secure passwords to keep your identity safe

Share data with Mozilla to help improve Firefox

Mixed content blocking in Firefox

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

Site Permissions panel

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

Data Loss Prevention

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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