Privacy and security settings
Learn how to keep your information safe and secure with Firefox's private browsing, password features and other security settings.
HTTPS-Only Mode in Firefox
Learn more about HTTPS-Only Mode which forces all connections to websites to use HTTPS.
Enhanced Tracking Protection in Firefox for desktop
Enhanced Tracking Protection in Firefox automatically protects your privacy while you browse.
Automatically fill in credit card data on Web forms
Manage credit card autofill settings in Firefox version 81 and above.
SmartBlock for Enhanced Tracking Protection
SmartBlock lets pages load more fully, with less breakage — all while keeping those tracking scripts blocked.
Does Firefox share my location with websites?
Learn what information Firefox sends to web sites about your location and how to use and manage location-aware features of your browser.
Sponsored shortcuts on the New Tab page
Working with its advertising partners, Mozilla may place sponsored shortcuts on the default Firefox home page and New Tab page. Learn more.
Site Information panel
The Site Information panel in Firefox tells you about a website's connection security and identity. Learn more.
Allow or block media autoplay in Firefox
Firefox prevents media from playing automatically on websites you visit, unless you grant permission. Learn more about this feature.
How to manage your camera and microphone permissions with Firefox
How to enable or block sites from accessing your camera and microphone on your desktop or mobile device.
Telemetry collection and deletion
Firefox collects telemetry data by default. We collect this data to help improve the performance and stability of Firefox. Learn more.
Why do I get a harmful download message when downloading Firefox on Windows?
You may see a warning that the installer could harm your device when attempting to download Firefox from another browser. Learn more.
How to generate a secure password in Firefox
Learn how Firefox can create a secure password for you when creating a new online account.
What is the Accessibility Service Indicator?
This article describes the implications of allowing or restricting access to accessibility services and its effect on performance.
Site Permissions panel
If you allow or block permissions for a website, the address bar will show a Permissions icon that opens the Permissions panel. Learn more.
Configure DNS over HTTPS protection levels in Firefox
DNS over HTTPS (DoH) is a recommended feature that enhances privacy for everyone. When you type a web address into your address bar, Firefox sends a secure DNS request to look up the IP address for that website over the Internet and make sure it's secure. In this article, we explain all the DoH protection levels you can configure from the Firefox settings.
Autofill logins on Firefox
Firefox lets you control whether or not to autofill your logins and passwords.
How Firefox securely saves passwords
Learn how Firefox securely saves your passwords.
WebXR Permission Info Page
This article explains Firefox's virtual reality features and how to manage permissions for websites that ask to access your VR devices.
What if I'm locked out of Two-Step Authentication?
Disable two-step authentication or use a backup authentication code to regain access to your account if you've been locked out of two-step authentication login.
How Firefox Sync keeps your data safe even if TLS fails
Firefox Sync encrypts your data before it ever leaves your device, and ensures that the password to unlock this encryption is never transmitted to the server.
Firefox asks for authentication (password, voice, face or fingerprint) when accessing passwords
Learn more about this Firefox anti-snooping feature designed to protect your logins and passwords from unauthorized access.
Total Cookie Protection and website breakage FAQ
Learn about Enhanced Tracking Protection and Total Cookie Protection in Firefox, and how to troubleshoot and report possible site breakage.
Block deceptive content and dangerous downloads in Firefox
Make sure these settings are enabled to prevent unwanted downloads and block suspicious content on your children's sessions.
How is Facebook Container different from Multi-account Containers?
The difference between Facebook Container and Multi-Account Containers
"Certificate cannot be trusted" warning in Kazakhstan
Firefox is blocking the use of Kazakhstan root CA certificate to protect your privacy. Learn more about how to stay safe.
My privacy settings were changed from Custom to Standard
If your Custom settings match the settings in Standard, you will be switched back to Standard. This will not affect your settings.
Primary Password is replacing Master Password
Primary Password is replacing Master Password. Learn more about why we are making this change.
Telemetry collection- Windows default browser trends
This article explains one example of how Firefox collects and uses telemetry data with the Default Browser Agent Windows scheduled task.
