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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

Third-party trackers

Private Browsing in Firefox for iOS

Private Browsing on Firefox for Android

Does Firefox share my location with websites?

Configure DNS over HTTPS protection levels in Firefox

Insecure connection password warning in Firefox

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

How do I set up Sync on my computer?

Protect privacy while using Web Authentication

Introducing Total Cookie Protection in Standard Mode

Telemetry collection and deletion

Enhanced Tracking Protection in Firefox for Android

Pop-up blocker settings, exceptions and troubleshooting

Delete browsing, search and download history on Firefox

Secure your Mozilla account with two-step authentication

Trackers and scripts Firefox blocks in Enhanced Tracking Protection

Firefox Password Manager - Alerts for breached websites

Use a Primary Password to protect stored logins and passwords

Choose a strong password

How does built-in Phishing and Malware Protection work?

HTTPS-Only Mode in Firefox for Android

Remote Content in Messages

Global Privacy Control

Private Browsing - Use Firefox without saving history

Privacy-Preserving Attribution

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

Mozilla Monitor - Frequently asked questions

SmartBlock for Enhanced Tracking Protection

Automatically trust third-party root certificates

How to manage your camera and microphone permissions with Firefox

How do I choose what information to sync on Firefox?

How to set up Firefox Sync in Firefox for Android

Secure website certificate

Search suggestions in Firefox

Microsoft OAuth Authentication and Thunderbird in 2024

Enhanced Tracking Protection in Firefox for iOS

How to use Firefox containers

Password Manager - Remember, delete and change passwords in Thunderbird

Mixed content blocking in Firefox

Mozilla account - Managing account data

Firefox DNS over HTTPS

Introduction to End-to-end encryption in Thunderbird

How do I turn on the Do Not Track feature?

How to stop Firefox from making automatic connections

My sign in was “blocked for security reasons” on Mozilla account

Secure Firefox passwords with device sign-in

Clear browsing history in Firefox for iOS

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

Set up a passcode and Face ID in Firefox for iOS

How Firefox securely saves passwords

Browsing history in Firefox - View the websites you have visited

OpenPGP in Thunderbird - HOWTO and FAQ

Site Permissions panel

Clear your browsing history in Firefox for Android

Sync bookmarks, logins and browsing history on Firefox for iOS

Site Information panel

Remove a synced device from your Mozilla account

How Firefox Sync keeps your data safe even if TLS fails

DNS over HTTPS (DoH) FAQs

Firefox privacy and security features

Thunderbird Android Telemetry

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

Protect your Thunderbird passwords with a Primary Password

Send usage data on Firefox mobile browsers

How do I know the status of my sync?

Manage your logins with the Firefox Password Manager

Autofill logins on Firefox

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

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

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

Create secure passwords to keep your identity safe

HTTPS-Only Mode in Firefox

Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication

Recommended Firefox privacy and security settings for families

Disable password saving in Firefox

Encrypted Client Hello (ECH) - Frequently asked questions

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

Resist Fingerprinting

Block and unblock websites with parental controls on Firefox

Share data with Mozilla to help improve Firefox

How do I share Firefox between people on a computer?

How to stay safe on the web

Digitally Signing and Encrypting Messages

Suspicious activity on my Mozilla account

Keep Private Browsing tabs open after exiting Firefox

About Firefox Desktop Attribution

Changing your two-step authentication device for your Mozilla account

Disable Firefox Sync

Thunderbird Telemetry

Activate Firefox Relay - Mask your email address

Create an email mask through Firefox Relay

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

OpenPGP Recipient Alias Configuration

How do I reset Mozilla VPN?

What to do after a data breach

Unsafe properties of OpenPGP keys might be ignored

How does Firefox for iOS use the permissions it requests?

Firefox accounts renamed Mozilla accounts - What you need to know

Understand Encrypted Client Hello (ECH)

Unlink your Google or Apple ID from your Mozilla account

Global Privacy Control in Firefox for Android

Monthly Monitor Report Email

Generate strong passwords in Firefox for Android

Disable Firefox Sync on a lost phone or tablet

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?

How Thunderbird’s scam detection works?

How can I digitally sign and encrypt emails?

Customize Firefox Home on iOS

Change your Mozilla account password

Firefox Monitor

How do you use Adjust in Firefox?

Tracking Protection in Firefox Preview

"Certificate cannot be trusted" warning in Kazakhstan

My privacy settings were changed from Custom to Standard

Primary Password is replacing Master Password

Telemetry collection - Windows default browser trends

Disable email forwarding - Stop receiving emails sent through your masks

Grant camera access to Firefox for Android

Use Web Apps with Firefox for Android

Primary Password is replacing Master Password in Thunderbird

Usage Data Changes for Firefox for iOS and Android

Install the Firefox Relay extension on Firefox for desktop

Total Cookie Protection and website breakage FAQ

Search your browsing history in Firefox for iOS

Disable credit card and payment method syncing across devices

Block deceptive content and dangerous downloads in Firefox

Resolve breaches with Mozilla Monitor

How do I monitor multiple email addresses?

Data broker scan

Securing a New Partner for Monitor Plus

Getting started with Thunderbird for Android

OpenPGP in Thunderbird for Android - How To

Firefox connection upgrades - HTTP to HTTPS

HTTPS-First upgrades to secure connections

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