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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

Avoid and report Mozilla tech support scams

Introducing Total Cookie Protection in Standard Mode

Does Firefox share my location with websites?

Third-party trackers

Private Browsing in Firefox for iOS

Private Browsing on Firefox for Android

Configure DNS over HTTPS protection levels in Firefox

Insecure connection password warning in Firefox

Enhanced Tracking Protection in Firefox for Android

Choose a strong password

How do I turn on the Do Not Track feature?

Pop-up blocker settings, exceptions and troubleshooting

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

HTTPS-Only Mode in Firefox

Microsoft OAuth Authentication and Thunderbird in 2024

Delete browsing, search and download history on Firefox

Private Browsing - Use Firefox without saving history

Protecting Privacy while using Web Authentication

Global Privacy Control

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Privacy-Preserving Attribution

How does built-in Phishing and Malware Protection work?

Secure your Mozilla account with two-step authentication

HTTPS-Only Mode in Firefox for Android

Remote Content in Messages

Mozilla Monitor - Frequently asked questions

Use a Primary Password to protect stored logins and passwords

How do I set up Sync on my computer?

Enhanced Tracking Protection in Firefox for iOS

How to manage your camera and microphone permissions with Firefox

Firefox Password Manager - Alerts for breached websites

Allow or block media autoplay in Firefox

How to use Firefox containers

Automatically trust third-party root certificates

Secure website certificate

Password Manager - Remember, delete and change passwords in Thunderbird

SmartBlock for Enhanced Tracking Protection

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

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

Mixed content blocking in Firefox

How do I choose what information to sync on Firefox?

Clear browsing history in Firefox for iOS

Search suggestions in Firefox

How Firefox securely saves passwords

Mozilla account - Managing account data

Introduction to End-to-end encryption in Thunderbird

Clear your browsing history in Firefox for Android

Turn on/off saved logins, login sync and login autofill in Firefox for Android

Data broker scan

Create secure passwords to keep your identity safe

Site Information panel

Clear your browsing history and other personal data on Firefox for Android

What if I'm locked out of Two-Step Authentication?

Disable Firefox Sync

Total Cookie Protection and website breakage FAQ

Set up a passcode and Face ID in Firefox for iOS

Autofill logins on Firefox

OpenPGP in Thunderbird - HOWTO and FAQ

Clear cookies and website data for a single domain in Firefox for Android

How to stop Firefox from making automatic connections

Sync bookmarks, logins and browsing history on Firefox for iOS

Delete sync data from Firefox by signing out of your Mozilla account

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

How to set up Firefox Sync in Firefox for Android

How to generate a secure password in Firefox

Secure Firefox passwords with device sign-in

Activate Firefox Relay - Mask your email address

Disable password saving in Firefox

Resolve breaches with Mozilla Monitor

Share data with Mozilla to help improve Firefox

How to stay safe on the web

Send usage data on Firefox mobile browsers

Browsing history in Firefox - View the websites you have visited

Telemetry collection and deletion

Use Web Apps with Firefox for Android

Site Permissions panel

Understand Encrypted Client Hello (ECH)

Encrypted Client Hello (ECH) - Frequently asked questions

Instructions for obtaining a personal S/MIME certificate by creating a CSR

Block and unblock websites with parental controls on Firefox

Disable Firefox Sync on a lost phone or tablet

Protect your Thunderbird passwords with a Primary Password

Keep Private Browsing tabs open after exiting Firefox

Remove a synced device from your Mozilla account

How do I know the status of my sync?

How Firefox Sync keeps your data safe even if TLS fails

Recommended Firefox extensions for families and students

How does Firefox for iOS use the permissions it requests?

Why do I get a harmful download message when downloading Firefox on Windows?

Firefox accounts renamed Mozilla accounts - What you need to know

Unlink your Google or Apple ID from your Mozilla account

Customize Firefox Home on iOS

Suspicious activity on my Mozilla account

How do you use Adjust in Firefox?

Manage your logins with the Firefox Password Manager

Changing your two-step authentication device for your Mozilla account

Primary Password is replacing Master Password

Primary Password is replacing Master Password in Thunderbird

OpenPGP Recipient Alias Configuration

Recommended Firefox privacy and security settings for families

How do I share Firefox between people on a computer?

How do I enable the Firefox OS phone lock?

Master password requested but not set Redirect 1

Certificates

Why does Thunderbird warn me that my server don't use encryption?

Digitally Signing and Encrypting Messages

How Thunderbird’s scam detection works?

How can I digitally sign and encrypt emails?

Change your Mozilla account password

About Firefox Desktop Attribution

Using a Primary Password with Sync

How is Facebook Container different from Multi-account Containers?

Firefox Monitor

Tracking Protection in Firefox Preview

"Certificate cannot be trusted" warning in Kazakhstan

My privacy settings were changed from Custom to Standard

Telemetry collection- Windows default browser trends

Create an email mask through Firefox Relay

Disable email forwarding - Stop receiving emails sent through your masks

Grant camera access to Firefox for Android

Usage Data Changes for Firefox for iOS and Android

What to do after a data breach

Unsafe properties of OpenPGP keys might be ignored

Search your browsing history in Firefox for iOS

Firefox privacy and security features

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

How do I monitor multiple email addresses?

Global Privacy Control in Firefox for Android

Monthly Monitor Report Email

Generate strong passwords in Firefox for Android

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