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Insecure connection password warning in Firefox
Firefox issues an insecure password warning when a web page's login form is not secure and your information could be stolen.
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.
Secure connection failed and Firefox did not connect
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.
Install Firefox on Linux
This article describes how to download and install Firefox on Linux.
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