Please provide better XSL support - it is terrible

When is Mozilla Foundation considering better xsl implementation? It
is hard to implement workarounds and sometimes still impossible.
Transformix is still not supporting the namespace axis xpath
expression. And also it seems impossible to implement other parser
like xalan or saxon. Is there any progress in the near future to fix
the bug in transformix or to allow native implementation of other
parser?

Does somebody know how I can build a workaround to address unbounded
namespace?

<xsl:value-of "*/@*[namespace-uri() = 'http://www.w3.org/2000/
xmlns/']"/> is not working.

Regards