Some websites use JavaScript to modify the password field before submitting the form. You can inspect and edit the password in the Password Manager (about:logins page). You can create a Login block exception for this origin (protocol and hostname) to prevent Firefox modifying/updating the stored password.

• https://support.mozilla.org/en-US/kb/password-manager-remember-delete-edit-logins

thanks dropa, my firefox account page from the menu that drops down when i click on D at top right. then click on manage account, sign in and the page is firefox account - D. settings with subheadings for profile, security, connected services, data collection and use, email communication. so the new 9 character password works fine-after a few times entering the password myself autofill took over. i checked for my firefox password in saved passwords but there are no entries for firefox. the only place is on my account page, there is a change box to the right of the hidden password but no option to view. since autofill signs me in ok, maybe this does not matter?

cor-el thankyou as well. no firefox in saved passwords. this is a desktop pc. i did not find about:logins page, just saved logins in password manager. and like i said in previous reply auto sign in works ok.

You can open "about:" pages via the location/address bar. The "about:" protocol is used to access special pages. All available About pages are listed on the about:about page.