Privacy and security settings
Learn how to keep your information safe and secure with Firefox's private browsing, password features and other security settings.
- Passwords, forms, search, and history - control what Firefox suggests
- How do I tell if my connection to a website is secure? Firefox uses a padlock icon next to a website's address to let you know your connection is encrypted. Clicking the icon gives you more info about the website.
- Private Browsing - Use Firefox without saving history Firefox Private Browsing is great for viewing websites incognito - without saving stuff like cookies, temp files and a history of the pages you visit.
- 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.
- How does content that isn't secure affect my safety? Firefox automatically blocks insecure or mixed content from secure web pages. We'll explain what that means and what options you have.
- How do I turn on the Do Not Track feature? Firefox has a feature that lets you tell websites not to track your browsing behavior. Learn what tracking is, how the feature works and how to turn it on.
- Firefox Health Report - understand your browser performance Firefox Health Report lets you know how well your browser is performing and what steps you can take to improve it.
- Delete browsing, search and download history on Firefox Control what information Firefox saves about the websites you visit. Clear your browsing, download, search and web form history, cookies, cache and more.
- Share telemetry data with Mozilla to help improve Firefox The Telemetry feature sends performance and usage data to us so we can measure how Firefox behaves in the real world and improve it. Learn how to turn this on.
- How to stop Firefox from automatically making connections without my permission This article explains various reasons why Firefox makes automatic connections to the Internet and how you can stop it from doing so if you wish.
- Tracking Protection on Firefox Tracking Protection is an experimental feature in Firefox that blocks included content from a blocklist of known or suspected tracking domains.
- Block websites from storing site preferences or login status in Firefox Websites store info such as site preferences and login status in "cookies" on your computer. Learn how to block websites from storing cookies in Firefox.
- Secure Website Certificate A Secure Website Certificate helps Firefox determine whether the site you are visiting is actually the site that it claims to be. When you visit a website whose web address starts with https, your communication with the site is encrypted to help ensure your privacy. Before starting the encrypted communication, the website will present Firefox with a certificate to identify itself.
- Permissions Manager - Give certain websites the ability to store passwords, set cookies and more The Firefox Permissions Manager collects website preferences all in one place. Learn how to set options for one site or set default permissions for all sites.
- How to stay safe on the web There are all kinds of scams, viruses and other dangers out there. Here are simple steps you can take to protect your computer and personal information.