I'm testing a PDF file from the Brazilian Post Office for declaring the contents of shipped goods. I added the form to the official document to streamline some processes, for example, by avoiding having to enter the same data in the second block, as the data is replicated from the first. The form has an intuitive navigation sequence, so that the sender and recipient data are entered, all the sender fields are entered, and then the recipient fields are entered, followed by the shipped goods fields, as shown in the attached image (pdfscr.png). The problem is that Firefox alone doesn't recognize the tabbed navigation order, instead using line-level navigation (pdfscr2.png). It's really annoying having to manipulate the PDF in Firefox because of this implementation flaw. Another point to note: The form fields are also formatted in the "Century Gothic" font, but in Firefox, they display in the default font and only appear correctly when printing. It could display the correct font during editing, as in all other browsers and programs. Thank you for your attention.