Kee not filling forms or correctly recognizing domain

I’m trying to get the Kee extension (Firefox) to log into the following website:

I have an entry saved in KeePass with the URL set to “”. However, Kee does not fill the fields (and the Kee icon doesn’t show up within them). When I open the Kee extension panel, it doesn’t show any entries. Searching for this URL will show the correct KeePass entry as a result, but under “Matches from other sites”.

I’ve seen a few posts about this which suggest changing settings in [KeePass entry] > Edit Entry > Kee > Form fields. However, I’m not especially tech savvy, when I open the inspector in Firefox it shows multiple different fields with various ids and names. I tried editing the “username” and “password” entries within the “Form fields” tab with a few combinations of these ids and names, but none of them seem to do anything.

How can I get Kee to work with this site? Thanks

Edit: I should add that the “NIF / NIE” field is the username and “Contraseña” is the password here

Unfortunately, I doubt it is possible to automatically fill that form because the website has created it in a way that prevents the use of assistive technology like Kee.

This might be too much technical information but it uses JavaScript to manipulate every key press, encourages interaction with a proprietary character selector system, randomises the form IDs and names such that they can’t be targetted and processes the entire form through a proprietary JavaScript process before using non-standard methods to submit the information to their server.

I’ve not studied any aspect of that in detail because from similar past experience I would not expect additional knowledge about their site to help us.

In short, it looks like a typical case of an ancient old financial institution having zero understanding of modern security practices. Presumably they will catch up soon or lose all of their business.

I wouldn’t recommend spending any more time trying to improve your experience on this website. Try copy/pasting your details into the fields but even that may not work.