Explore the knowledge base.
Still need help?
We’re here for you. Post a question to our support forums and get answers from our community of experts.Ask the Community
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.
Options/Preferences panels give you access to Firefox settings. This article describes what types of settings are available in each panel.
Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.
You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.