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Firefox issues an insecure password warning when a web page's login form is not secure and your information could be stolen.
Firefox automatically updates itself by default, but you can always do a manual update. Learn how to update Firefox on Windows, Mac, or Linux.
You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.
