SVG Fonts

Are there any plans to implement SVG fonts in Firefox?   By SVG fonts
I mean the font tag defined in the SVG spec as distinct from fonts
installed on the user computer.   An example of what I'm talking about
is the Chess
Sophia Font produced by Max Froumentain formely of W3C.

the first part of it looks like this:
<font horiz-adv-x="0">
<font-face font-family="ChessSophia" units-per-em="1000" panose-1="0 0
4 0 0 0 0 0 0 0" ascent="1000" descent="0" alphabetic="0"/>
<missing-glyph horiz-adv-x="500" d="M63 0V1000H438V0H63ZM125
63H375V938H125V63Z"/>

.....

The font module has been implemented in Adobe & batik - I would like
to see it in Firefox as well.

If anyone is developing SVG fonts for Firefox I would be willing to
help.