[Bug]: Broken PDF fields on form

[freonheat]

Attach (recommended) or Link to PDF file

CustomerSetUpForm.pdf

Web browser and its version

Firefox 133.0.3, 128.3ESR, 115ESR

Operating system and its version

Linux

PDF.js version

unknown- built into firefox

Is the bug present in the latest PDF.js version?

Yes

Is a browser extension

Yes

Steps to reproduce the problem

Open attached file.

1. It is impossible to enter a phone number in section A. And it seems to remember previous attempts. The phone fields work fine in Chromium.

2. Also, it is impossible to fill in fields in section C, even when toggling the "Please check the following" buttons in section B. Again, works fine in Chromium.

What is the expected behavior?

Ability to enter phone numbers and section C.

What went wrong?

1. Phone numbers present an error. Editing the field doesn't make it go away. User can't proceed.
2. Section C is never available to show/fill any fields

Link to a viewer

No response

Additional context

I didn't design this PDF form, it was sent to us as something we have to fill out. After repeated attempts and failures in Firefox/PDF.js, we had to use Chromium to fill it out.

Also- I can't find a way to determine pdf.js version in Firefox as requested by this pdf.js bug submission form. Nor do I know what "Is a browser extension" means.