Comment 34 for bug 321720

Adobe would have to document XFA forms before this even could be addressed.

The most up to date info I could find on that front is:

    http://en.wikipedia.org/wiki/XFA#Standardization

As long as Adobe keeps XFA forms proprietary they are not potable and livecycle and acroread are the only way to deal with them.

Speaking only for myself, I’d go so far as to say that private, unpublished extensions to the PDF format make the file not PDF.

Support for ECMA-Script, on the other hand, is merely a matter of coding.

Until poppler or evince add it, you might want to try compiling mupdf master

  (git clone git://git.ghostscript.com/mupdf.git)

with -DV8_PRESENT=1. You’ll need to install v8 first. Your distribution might pacakge it, else look at http://code.google.com/p/v8.