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Learn how to protect your privacy and secure your data.

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Common Myths about Private Browsing

Enhanced Tracking Protection in Firefox for desktop

Third-party trackers

Configure DNS over HTTPS protection levels in Firefox

Avoid and report Mozilla tech support scams

Insecure connection password warning in Firefox

Does Firefox share my location with websites?

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

Add Firefox Relay to the Firefox password manager

How do I set up Sync on my computer?

Global Privacy Control

Protect privacy while using Web Authentication

Use a Primary Password to protect stored logins and passwords

HTTPS-Only Mode in Firefox

Firefox Password Manager - Alerts for breached websites

Introducing Total Cookie Protection in Standard Mode

Pop-up blocker settings, exceptions and troubleshooting

How does built-in Phishing and Malware Protection work?

Privacy-Preserving Attribution

Troubleshoot Firefox issues caused by malware

Automatically trust third-party root certificates

SmartBlock for Enhanced Tracking Protection

How do I choose what information to sync on Firefox?

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

Resist Fingerprinting

Secure website certificate

Private Browsing - Use Firefox without saving history

How to use Firefox containers

How do I turn on the Do Not Track feature?

Mixed content blocking in Firefox

How to manage your camera and microphone permissions with Firefox

Site Information panel

DNS over HTTPS (DoH) FAQs

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Delete browsing, search and download history on Firefox

I found a fake Firefox update

Telemetry collection and deletion

Firefox DNS over HTTPS

How to stop Firefox from making automatic connections

Autofill logins on Firefox

Share browser windows or your screen with sites you trust

Firefox privacy and security features

Browsing history in Firefox - View the websites you have visited

Disable Firefox Sync

Site Permissions panel

Manage your logins with the Firefox Password Manager

Certificate contains the same serial number as another certificate

Search suggestions in Firefox

How Firefox securely saves passwords

HTTPS-First upgrades to secure connections

Change your Mozilla account password

Recommended Firefox privacy and security settings for families

Disable Firefox Sync on a lost phone or tablet

How to stay safe on the web

Remove a synced device from your Mozilla account

Firefox Subprocessor List

How Firefox Sync keeps your data safe even if TLS fails

Total Cookie Protection and website breakage FAQ

Encrypted Client Hello (ECH) - Frequently asked questions

About Firefox Desktop Attribution

How do I know the status of my sync?

Disable password saving in Firefox

Understand Encrypted Client Hello (ECH)

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

Firefox connection upgrades - HTTP to HTTPS

Share data with Mozilla to help improve Firefox

Suspicious activity on my Mozilla account

How do you use Google Firebase in Firefox?

Change your two-step authentication device for your Mozilla account

Telemetry collection - Windows default browser trends

Data Loss Prevention

Manage technical and interaction data collection settings in Firefox

Block and unblock websites with parental controls on Firefox

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

How do I share Firefox between people on a computer?

"Certificate cannot be trusted" warning in Kazakhstan

My privacy settings were changed from Custom to Standard

Compatibility with Exploit protection on Windows

Primary Password is replacing Master Password

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

How Review Checker preserves user privacy

Manage daily usage ping data collection settings in Firefox

Manage marketing data settings in Firefox for Desktop

Crash reports in Firefox for Desktop

Placeholder Bug 1947157

Oblivious HTTP (OHTTP) explained

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