Protect your privacy

Keep your information safe from prying eyes with the latest privacy and security features.

Cookies and cache Control the information that Firefox saves
Insecure password warning in Firefox Firefox warns you when a login form is not secure and your information could be stolen.
Trackers and scripts Firefox blocks in Enhanced Tracking Protection Blocks many common trackers and harmful scripts and reduces the ability of third parties to collect data about your browsing behavior
Secure your Firefox Account with two-step authentication Protect your account with two-step authentication.
My sign in was “blocked for security reasons” on Firefox Accounts Firefox Accounts blocks sign in attempts if it detects unusual activity. Learn how to unblock your account.
How do I turn on the Do Not Track feature? Firefox lets you tell websites not to track your browsing behavior. Learn what tracking is and how to turn on the "Do Not Track" feature.
Common Myths about Private Browsing Learn more about common misconceptions about Private Browsing in Firefox.
Enhanced Tracking Protection in Firefox for desktop Enhanced Tracking Protection in Firefox automatically protects your privacy while you browse.
Private Browsing - Use Firefox without saving history Firefox Private Browsing is great for viewing websites without saving things such as cookies, temp files, and a history of the pages you visit.
Content blocking "Content blocking" is a collection of privacy features in Firefox 69 and below. This became "Enhanced Tracking Protection" in Firefox 70.
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.
Secure website certificate Websites can present Firefox with a certificate to identify themselves. Find out how Firefox checks the authenticity of the sites you visit.
Site Information panel The Site Information panel in Firefox tells you about connection security, identity and any special website permissions. Learn more.
How do I tell if my connection to a website is secure? Firefox uses a padlock icon next to a website's URL to let you know your connection is encrypted. Click on the icon for more information.
Mixed content blocking in Firefox Firefox automatically blocks insecure or mixed content from secure web pages. We'll explain what that means and what options you have.
Firefox Monitor - Frequently asked questions Frequently-asked questions for Firefox Monitor.
How does built-in Phishing and Malware Protection work? Firefox contains built-in Phishing and Malware Protection to help keep you safe online. This article explains how they work.
Firefox Monitor Firefox Monitor empowers users to fight against data breaches by alerting users when they visit a previously breached website.
Manage passwords on Firefox desktop with Firefox Lockwise Manage your saved logins and passwords with Firefox Lockwise.
Share data with Mozilla to help improve Firefox The Telemetry feature sends us performance and usage data to help measure how Firefox behaves in the real world and improve it. Learn more.
What happened to Tracking Protection? The privacy benefits of Tracking Protection are now part of content blocking.
Suspicious activity on my Firefox Account How to protect yourself if suspicious activity is detected on your Firefox Account.
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.
Using a master password with Sync Learn how to use a Master Password with Sync for extra protection.
How to stop Firefox from making automatic connections Learn about the various reasons why Firefox makes automatic connections to the Internet and how you can stop it from doing so if you wish.
Delete browsing, search and download history on Firefox Learn what information is stored in your Firefox history and how to clear all or part of it if you are using a public or shared computer.
Third-party trackers Third-party trackers are invisible snippets of code that are present on many websites.
Firefox Election Bundle The Firefox Election bundle comes with two add-ons to help you stay savvy this election season.
How do I share Firefox between people on a computer? Firefox can be used by several people on a single computer. Learn the basic protections to prevent others form accessing your private data.
About Firefox Pioneer Learn more about this feature of SHIELD studies.
Protecting Privacy while using Web Authentication Learn about Web Authentication, a powerful anti-phishing technology.
How is Facebook Container different from Multi-account Containers? The difference between Facebook Container and Multi-Account Containers
About Firefox Desktop Attribution Learn about information collected when you download and install Firefox, how it's used, privacy considerations and how to opt-out.
How to stay safe on the web There are all kinds of scams, viruses and other dangers out in the web. Take these simple steps to protect your computer and personal information.
"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.