Are you on an open HTTP page (i.e. the URL isn't a secure HTTPS link) when you get this warning?

Firefox 51+ will mark HTTP connections with a padlock with a strike through and shows "Connection is Not Secure" if you click the Control Center 'i' button at the left end of the location/address bar.

See also:

• https://support.mozilla.org/en-US/kb/insecure-password-warning-firefox
• https://support.mozilla.org/en-US/kb/how-do-i-tell-if-my-connection-is-secure
• https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean

I think its a Wells Fargo issue

Can you attach a screenshot?

• https://support.mozilla.org/en-US/kb/how-do-i-create-screenshot-my-problem
• use a compressed image type like PNG or JPG to save the screenshot

carrport@outlook.com said

I think its a Wells Fargo issue

Could it be that you inadvertently checked that box  ?

Separate issue :

Your system details show that you need to update your Adobe Flash Player - you're running an old version, which can cause problems. Would you please uninstall your current version and install the latest version, which is 31.0.0.108

Uninstaller : https://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html

https://get.adobe.com/flashplayer/

Note : some 'extras' may be offered in the download.

cor-el said

Can you attach a screenshot?

• https://support.mozilla.org/en-US/kb/how-do-i-create-screenshot-my-problem
• use a compressed image type like PNG or JPG to save the screenshot

I checked out the page and that box isn't checked by default, so you may have once checked it by accident.

• https://connect.secure.wellsfargo.com/auth/login/present

Such choices are usually stored in a cookie, so you can clear the wellsfargo.com cookies to reset these choices.

"Remove the Cookies" from websites that cause problems:

• Options/Preferences -> Privacy & Security
  Cookies and Site Data -> Manage Data

Cleared cookies. Box not checked but get same message. I use 1Password. Wonder if that's the problem.

carrport@outlook.com said

Cleared cookies. Box not checked but get same message. I use 1Password. Wonder if that's the problem.

If you are talking about this extension (or another extension) :

https://addons.mozilla.org/en-US/firefox/addon/1password-x-password-manager/

Would you disable it and see if that will make a difference  ?