Thank you for your response, but it is not really much help. I should be allowed to use my password manager which allows me to drop a password into a web form. Adding it to Threats and Exclusions has had no effect whatsoever. This is what is wrong! I notice, though it may not be pertinent, that Kaspersky's extension to Firefox is not apparently signed for Firefox 43 yet and gets disabled. If I exclude the brower from Threats and Exclusions then I presume Safe Money is no longer protecting anything.
I even tried trusting clip.exe, but that also had no effect