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Common Myths about Private Browsing

Learn more about common misconceptions about Private Browsing in Firefox.

Secure connection failed and Firefox did not connect

If a website requires a secure connection that cannot be established, Firefox will not connect to protect you and will show you an error page. Learn more.

Back up and transfer your Firefox data to a new device

Learn how to transfer your browser data when switching devices using Firefox Sync. Back up your bookmarks, history, passwords, etc. with your Mozilla account.

Add-on Badges

You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.

Permission request messages for Firefox extensions

Learn about permission requests when adding extensions to Firefox. Get details on each request for a clearer understanding.

Enhanced Tracking Protection in Firefox for desktop

Enhanced Tracking Protection in Firefox automatically protects your privacy while you browse.

Understanding the risks of installing self-hosted extensions

Learn about the risks of installing extensions from third-parties and how to assess the trustworthiness of the source.

Update Firefox to the latest release

Firefox automatically updates itself by default, but you can always do a manual update. Learn how to update Firefox on Windows, Mac, or Linux.

Firefox Page Info window

The Firefox “Page Info” window gives you details about the page you're on. You can also use it to change permissions for the website.

Private Browsing on Firefox for Android

Private Browsing on your mobile device is great for viewing websites incognito - without saving information about the sites you visit.

Firefox options, preferences and settings

Settings panels give you access to Firefox settings. This article describes what types of settings are available in each panel.

Windows 10 warns me to use a "Microsoft-verified" app

Windows 10 may interrupt your Firefox install with a warning about "Microsoft-verified apps". Firefox is safe to install and use, so choose "install anyway".