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
Firefox issues an insecure password warning when a web page's login form is not secure and your information could be stolen.
You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.
Learn more about common misconceptions about Private Browsing in Firefox.
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.