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Fix slowness, crashing, error messages and other problems
Keep your information safe from prying eyes with the latest privacy and security features.
Cookies and cacheControl the information that Firefox saves
Insecure password warning in FirefoxFirefox warns you when a login form is not secure and your information could be stolen.
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.
Mixed content blocking in FirefoxFirefox automatically blocks insecure or mixed content from secure web pages. Well explain what that means and what options you have.
Secure your Firefox Account with two-step authenticationProtect your account with two-step authentication.
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.
Does Firefox share my location with websites?Understand what information Firefox sends to web sites about your location and learn how to use and manage location-aware features of your browser.
How do I tell if my connection to a website is secure?Firefox uses a padlock icon next to a websites URL to let you know your connection is encrypted. Click on the icon for more information.
Private Browsing – Use Firefox without saving historyFirefox Private Browsing is great for viewing websites without saving things like cookies, temp files, and a history of the pages you visit.
Tracking ProtectionPrivate Browsing now includes Tracking Protection, which actively blocks domains and sites that are known to track users.
Suspicious activity on my Firefox AccountHow to protect yourself if suspicious activity is detected on your Firefox Account.
Protecting Privacy while using Web AuthenticationLearn about Web Authentication, a powerful anti-phishing technology.
Facebook Container: Prevent Facebook from tracking your visits to other websitesFacebook Container is an add-on you can install on Firefox to prevent Facebook from tracking your activity on other websites.
How is Facebook Container different from Multi-account Containers?The difference between Facebook Container and Multi-Account Containers
Settings for privacy, browsing history and do-not-trackThis article describes settings in the Privacy panel of Options/Preferences in older versions of Firefox (Firefox 55 and below).
How to stop Firefox from making automatic connectionsLearn about the various reasons why Firefox makes automatic connections to the Internet and how you can stop it from doing so if you wish.
Security and passwords settingsThis article describes settings in the Security panel of Options/Preferences in older versions of Firefox (Firefox 55 and below).
Delete browsing, search and download history on FirefoxLearn 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.
Secure Website CertificateWebsites can present Firefox with a certificate to identify themselves. Find out how Firefox checks the authenticity of the sites you visit.
Share data with Mozilla to help improve FirefoxThe Telemetry feature sends us performance and usage data to help measure how Firefox behaves in the real world and improve it. Learn more.
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.
How to stay safe on the webThere are all kinds of scams, viruses and other dangers out in the web. Take these simple steps to protect your computer and personal information.
Tips for safe online shoppingLearn about Firefox features that can protect you from information theft during the shopping season.
Control Center – manage site privacy and security controlsThe Control Center in Firefox lets you manage site security and privacy settings in one place.
About Firefox Desktop Attributionprivacy
Using a master password with SyncLearn how to use a Master Password with Sync for extra protection.
My sign in was blocked for security reasons on Firefox AccountsFirefox Accounts blocks sign in attempts if it detects unusual activity. Learn how to unblock your account.
About Firefox PioneerLearn more about this feature of SHIELD studies.
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