The login/password doesn't get proposed for autofill, if I enter the login manually and then click on the password field I do get the little popup to fill the password automatically.

This was reported today on end-users forums, I can confirm. It works in Chrome.
This is a significant e-commerce site in France and I am pretty sure that it used to work although I didn't visit it recently, I guess something changed either on this site or in Firefox.

They are known as https://www.krefel.be in Belgium and the site is very similar but I don't know if their Belgium variant is also impacted as I don't have an account there.

I don't have time yet to provide debugging logs, setting NI to myself to do it later.

I am not seeing anything in the console log related to logins.

The severity field is not set for this bug.
:serg, could you have a look please?

For more information, please visit auto_nag documentation.

I can not reproduce on both NL and FR versions of that site using Nightly. Both times I see autocomplete and autofill works. Can you try again, may be they have fixed something on their end?

EDIT:
No issues on https://www.krefel.be , but it doesn't work on boulanger.com/account/auth. Let me investigate that one.

The password field is not found on the form because it's inside shadow DOM and not part of form.elements.