The key icon is for saving a new password that hasn't been saved yet.

Do you see the saved passwords in the Password Manager?

• Tools > Options > Security: Passwords: "Saved Passwords" > "Show Passwords"

Do you get a drop down list if you click the name field or press the Down key or type the first letters of the name?

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

• Don't make any changes on the Safe mode start window.
• https://support.mozilla.com/kb/Safe+Mode

I see a lot of prefs that have been changed in your More system details list.

You have enabled SSL2 and disabled TLS 1.

security.enable_ssl2 true
security.enable_tls false

Any particular reason for this?

SSL 2 with weak ciphers less than 128 bit shouldn't be used anymore.

• http://kb.mozillazine.org/Resetting_preferences
• https://support.mozilla.com/kb/Resetting+preferences

As to the security settings only reason for change I can think of is operator error, usually I don't change anything that I don't understand which is most of the non default settings. I changed the settings to both on although going to the default might be my best bet?

Once in safe mode, going to sites for which passwords were stored, it operated the way it is supposed to so I guess something loaded outside of safe mode is the culprit.

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

• Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
• Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

• https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes