Hello K_McIntosh,

Would you please take a look at this article;   it will explain what you are seeing :

https://support.mozilla.org/en-US/kb/lockwise-password-authentication-prompt

- - - - - - - - - - - - - - - - - - -

In case you don't want to see that prompt every time :

Type in the address bar   about:config   and press Enter.
(ignore the warning)

Type in the search bar and look for the preference :

signon.management.page.os-auth.enabled

Change its value to false.

Then close and restart Firefox.

(this preference may be removed sometime in the near future )

Thank you McCoy for your extremely rapid and helpful response ... I appreciate it ...

This change to Firefox's behaviour is unwelcome ... another little slice of life lost to the digital realm ... especially since no specific browser Restart / Re-launch prompt advised me of this new Security functionality.

Thank you for the about:config solution - it has been implemented. K_McIntosh

I'm glad that I could help.

In case you'd like to submit feedback   -   let them know how you feel about this   -   you can do so by using this link :

https://qsurvey.mozilla.com/s3/FirefoxInput/

I did submit feedback ... prior to posting here ... enough time spent on this ... thanks again.