Insecure password warning in Firefox

Revision Information
  • Revision id: 133068
  • Created:
  • Creator: AliceWyman
  • Comment: made [[T:fxdesktopbeta]] template {for not fx50}.
  • Reviewed: Yes
  • Reviewed:
  • Reviewed by: AliceWyman
  • Is approved? Yes
  • Is current revision? No
  • Ready for localization: Yes
  • Readied for localization:
  • Readied for localization by: AliceWyman
Revision Source
Revision Content
This is a new feature that is not yet available in released versions of Firefox. You can try it on Firefox Beta.

Firefox will display a lock icon with red strike-through red strikethrough icon in the address bar when a login page you’re viewing does not have a secure connection. This is to inform you that if you enter your password it could be stolen by eavesdroppers and attackers.

What can I do if a login page is insecure?

If a login page for your favorite site is insecure, you can try and see if a secure version of the page exists by typing https:// before the url in the location bar. You can also try to contact the web administrator for the site and ask them to secure their connection.

Not recommended: You can also continue to log in to the website even if the connection is insecure, but do so at your own risk. If you do go this route, try to use a unique password or a password that you don’t also use for other important sites.

About insecure pages

Pages that need to transmit private information, such as credit cards, personal information and passwords, need to have a secure connection to help prevent attackers from stealing your information. (Tip: A secure connection will have “HTTPS” in the address bar, along with a green lock icon.)

Pages that don’t transmit any private information can have an unencrypted connection (HTTP). It is not advised to enter private information, such as passwords, on a web page that shows HTTP in the address bar. The information you enter can be stolen over this insecure connection.

Note for developers

For developers looking to learn more about this warning, please reference this page. The page explains when and why Firefox shows this warning, and will also provide some details on how to fix the issue.